Ballast Pump

• Mechanical seal degradation in seawater
• Vertical shaft bearing wear
• Impeller wear from continuous service
• Casing erosion in coastal trade

• Casing joint gasket leakage
• Double-suction wear imbalance
• Bearing wear
• Mechanical seal failure

• Cavitation or suction starvation caused by blocked strainers, air ingress, low liquid level or excessive suction losses, resulting in noise, vibration and reduced delivery
• Shaft-seal or gland leakage caused by wear, misalignment or damaged sealing faces, resulting in visible leakage around the shaft
• Bearing deterioration caused by poor lubrication, contamination or misalignment, resulting in increased noise, vibration or bearing temperature
• Impeller or internal hydraulic wear caused by corrosion, erosion or deposits, resulting in reduced capacity and efficiency
• Coupling, motor or drive problems caused by misalignment, looseness or electrical faults, resulting in vibration, abnormal load or failure to reach normal speed

• Cavitation or suction starvation caused by blocked strainers, air ingress, low liquid level or excessive suction losses, resulting in noise, vibration and reduced delivery
• Shaft-seal or gland leakage caused by wear, misalignment or damaged sealing faces, resulting in visible leakage around the shaft
• Bearing deterioration caused by poor lubrication, contamination or misalignment, resulting in increased noise, vibration or bearing temperature
• Impeller or internal hydraulic wear caused by corrosion, erosion or deposits, resulting in reduced capacity and efficiency
• Coupling, motor or drive problems caused by misalignment, looseness or electrical faults, resulting in vibration, abnormal load or failure to reach normal speed

• Cavitation or suction starvation caused by blocked strainers, air ingress, low liquid level or excessive suction losses, resulting in noise, vibration and reduced delivery
• Shaft-seal or gland leakage caused by wear, misalignment or damaged sealing faces, resulting in visible leakage around the shaft
• Bearing deterioration caused by poor lubrication, contamination or misalignment, resulting in increased noise, vibration or bearing temperature
• Impeller or internal hydraulic wear caused by corrosion, erosion or deposits, resulting in reduced capacity and efficiency
• Coupling, motor or drive problems caused by misalignment, looseness or electrical faults, resulting in vibration, abnormal load or failure to reach normal speed

• Poor suction conditions, blockage or air ingress cause low flow, cavitation-like noise or unstable discharge
• Seal, packing or gasket wear causes visible leakage and falling pressure
• Bearing, shaft or coupling wear causes vibration, abnormal noise or rising temperature
• Impeller, screw or pumping-element wear or fouling reduces capacity and can increase motor load
• Motor, hydraulic-drive, valve or control faults cause failure to start, reduced speed or protective trips

• Cavitation or suction starvation caused by blocked strainers, air ingress, low liquid level or excessive suction losses, resulting in noise, vibration and reduced delivery
• Shaft-seal or gland leakage caused by wear, misalignment or damaged sealing faces, resulting in visible leakage around the shaft
• Bearing deterioration caused by poor lubrication, contamination or misalignment, resulting in increased noise, vibration or bearing temperature
• Impeller or internal hydraulic wear caused by corrosion, erosion or deposits, resulting in reduced capacity and efficiency
• Coupling, motor or drive problems caused by misalignment, looseness or electrical faults, resulting in vibration, abnormal load or failure to reach normal speed

• Poor suction conditions, blockage or air ingress cause low flow, cavitation-like noise or unstable discharge
• Seal, packing or gasket wear causes visible leakage and falling pressure
• Bearing, shaft or coupling wear causes vibration, abnormal noise or rising temperature
• Impeller, screw or pumping-element wear or fouling reduces capacity and can increase motor load
• Motor, hydraulic-drive, valve or control faults cause failure to start, reduced speed or protective trips

• Poor suction conditions, blockage or air ingress cause low flow, cavitation-like noise or unstable discharge
• Seal, packing or gasket wear causes visible leakage and falling pressure
• Bearing, shaft or coupling wear causes vibration, abnormal noise or rising temperature
• Impeller, screw or pumping-element wear or fouling reduces capacity and can increase motor load
• Motor, hydraulic-drive, valve or control faults cause failure to start, reduced speed or protective trips

• Poor suction conditions, blockage or air ingress cause low flow, cavitation-like noise or unstable discharge
• Seal, packing or gasket wear causes visible leakage and falling pressure
• Bearing, shaft or coupling wear causes vibration, abnormal noise or rising temperature
• Impeller, screw or pumping-element wear or fouling reduces capacity and can increase motor load
• Motor, hydraulic-drive, valve or control faults cause failure to start, reduced speed or protective trips

• Poor suction conditions, blockage or air ingress cause low flow, cavitation-like noise or unstable discharge
• Seal, packing or gasket wear causes visible leakage and falling pressure
• Bearing, shaft or coupling wear causes vibration, abnormal noise or rising temperature
• Impeller, screw or pumping-element wear or fouling reduces capacity and can increase motor load
• Motor, hydraulic-drive, valve or control faults cause failure to start, reduced speed or protective trips

• Poor suction conditions, blockage or air ingress cause low flow, cavitation-like noise or unstable discharge
• Seal, packing or gasket wear causes visible leakage and falling pressure
• Bearing, shaft or coupling wear causes vibration, abnormal noise or rising temperature
• Impeller, screw or pumping-element wear or fouling reduces capacity and can increase motor load
• Motor, hydraulic-drive, valve or control faults cause failure to start, reduced speed or protective trips

• Loss of suction from empty source tank, closed valve, blocked strainer, air ingress, or poor priming causes low discharge pressure, cavitation noise, or no flow
• Seal or packing wear caused by ageing, dry running, shaft movement, or contamination produces visible leakage or loss of suction
• Bearing, coupling, gear, rotor, screw, impeller, or stator wear from poor lubrication, misalignment, debris, or normal service causes vibration, noise, heat, or reduced capacity
• Internal wear, erosion, or excessive clearances caused by abrasive or corrosive media reduces discharge pressure and increases recirculation or running time
• Motor, hydraulic drive, protection, or control faults caused by overload, electrical failure, or actuator problems result in trips, failed starting, or unstable speed

• Loss of suction from empty source tank, closed valve, blocked strainer, air ingress, or poor priming causes low discharge pressure, cavitation noise, or no flow
• Seal or packing wear caused by ageing, dry running, shaft movement, or contamination produces visible leakage or loss of suction
• Bearing, coupling, gear, rotor, screw, impeller, or stator wear from poor lubrication, misalignment, debris, or normal service causes vibration, noise, heat, or reduced capacity
• Internal wear, erosion, or excessive clearances caused by abrasive or corrosive media reduces discharge pressure and increases recirculation or running time
• Motor, hydraulic drive, protection, or control faults caused by overload, electrical failure, or actuator problems result in trips, failed starting, or unstable speed

• Cavitation or suction starvation caused by blocked strainers, air ingress, low liquid level or excessive suction losses, resulting in noise, vibration and reduced delivery
• Shaft-seal or gland leakage caused by wear, misalignment or damaged sealing faces, resulting in visible leakage around the shaft
• Bearing deterioration caused by poor lubrication, contamination or misalignment, resulting in increased noise, vibration or bearing temperature
• Impeller or internal hydraulic wear caused by corrosion, erosion or deposits, resulting in reduced capacity and efficiency
• Coupling, motor or drive problems caused by misalignment, looseness or electrical faults, resulting in vibration, abnormal load or failure to reach normal speed

• Cavitation or suction starvation caused by blocked strainers, air ingress, low liquid level or excessive suction losses, resulting in noise, vibration and reduced delivery
• Shaft-seal or gland leakage caused by wear, misalignment or damaged sealing faces, resulting in visible leakage around the shaft
• Bearing deterioration caused by poor lubrication, contamination or misalignment, resulting in increased noise, vibration or bearing temperature
• Impeller or internal hydraulic wear caused by corrosion, erosion or deposits, resulting in reduced capacity and efficiency
• Coupling, motor or drive problems caused by misalignment, looseness or electrical faults, resulting in vibration, abnormal load or failure to reach normal speed

• Cavitation or suction starvation caused by blocked strainers, air ingress, low liquid level or excessive suction losses, resulting in noise, vibration and reduced delivery
• Shaft-seal or gland leakage caused by wear, misalignment or damaged sealing faces, resulting in visible leakage around the shaft
• Bearing deterioration caused by poor lubrication, contamination or misalignment, resulting in increased noise, vibration or bearing temperature
• Impeller or internal hydraulic wear caused by corrosion, erosion or deposits, resulting in reduced capacity and efficiency
• Coupling, motor or drive problems caused by misalignment, looseness or electrical faults, resulting in vibration, abnormal load or failure to reach normal speed

• Cavitation or suction starvation caused by blocked strainers, air ingress, low liquid level or excessive suction losses, resulting in noise, vibration and reduced delivery
• Shaft-seal or gland leakage caused by wear, misalignment or damaged sealing faces, resulting in visible leakage around the shaft
• Bearing deterioration caused by poor lubrication, contamination or misalignment, resulting in increased noise, vibration or bearing temperature
• Impeller or internal hydraulic wear caused by corrosion, erosion or deposits, resulting in reduced capacity and efficiency
• Coupling, motor or drive problems caused by misalignment, looseness or electrical faults, resulting in vibration, abnormal load or failure to reach normal speed

• Cavitation or suction starvation caused by blocked strainers, air ingress, low liquid level or excessive suction losses, resulting in noise, vibration and reduced delivery
• Shaft-seal or gland leakage caused by wear, misalignment or damaged sealing faces, resulting in visible leakage around the shaft
• Bearing deterioration caused by poor lubrication, contamination or misalignment, resulting in increased noise, vibration or bearing temperature
• Impeller or internal hydraulic wear caused by corrosion, erosion or deposits, resulting in reduced capacity and efficiency
• Coupling, motor or drive problems caused by misalignment, looseness or electrical faults, resulting in vibration, abnormal load or failure to reach normal speed

• Cavitation or suction starvation caused by blocked strainers, air ingress, low liquid level or excessive suction losses, resulting in noise, vibration and reduced delivery
• Shaft-seal or gland leakage caused by wear, misalignment or damaged sealing faces, resulting in visible leakage around the shaft
• Bearing deterioration caused by poor lubrication, contamination or misalignment, resulting in increased noise, vibration or bearing temperature
• Impeller or internal hydraulic wear caused by corrosion, erosion or deposits, resulting in reduced capacity and efficiency
• Coupling, motor or drive problems caused by misalignment, looseness or electrical faults, resulting in vibration, abnormal load or failure to reach normal speed

• Poor suction conditions, blockage or air ingress cause low flow, cavitation-like noise or unstable discharge
• Seal, packing or gasket wear causes visible leakage and falling pressure
• Bearing, shaft or coupling wear causes vibration, abnormal noise or rising temperature
• Impeller, screw or pumping-element wear or fouling reduces capacity and can increase motor load
• Motor, hydraulic-drive, valve or control faults cause failure to start, reduced speed or protective trips

• Cavitation or suction starvation caused by blocked strainers, air ingress, low liquid level or excessive suction losses, resulting in noise, vibration and reduced delivery
• Shaft-seal or gland leakage caused by wear, misalignment or damaged sealing faces, resulting in visible leakage around the shaft
• Bearing deterioration caused by poor lubrication, contamination or misalignment, resulting in increased noise, vibration or bearing temperature
• Impeller or internal hydraulic wear caused by corrosion, erosion or deposits, resulting in reduced capacity and efficiency
• Coupling, motor or drive problems caused by misalignment, looseness or electrical faults, resulting in vibration, abnormal load or failure to reach normal speed

• Poor suction conditions, blockage or air ingress cause low flow, cavitation-like noise or unstable discharge
• Seal, packing or gasket wear causes visible leakage and falling pressure
• Bearing, shaft or coupling wear causes vibration, abnormal noise or rising temperature
• Impeller, screw or pumping-element wear or fouling reduces capacity and can increase motor load
• Motor, hydraulic-drive, valve or control faults cause failure to start, reduced speed or protective trips

• Poor suction conditions, blockage or air ingress cause low flow, cavitation-like noise or unstable discharge
• Seal, packing or gasket wear causes visible leakage and falling pressure
• Bearing, shaft or coupling wear causes vibration, abnormal noise or rising temperature
• Impeller, screw or pumping-element wear or fouling reduces capacity and can increase motor load
• Motor, hydraulic-drive, valve or control faults cause failure to start, reduced speed or protective trips

• Poor suction conditions, blockage or air ingress cause low flow, cavitation-like noise or unstable discharge
• Seal, packing or gasket wear causes visible leakage and falling pressure
• Bearing, shaft or coupling wear causes vibration, abnormal noise or rising temperature
• Impeller, screw or pumping-element wear or fouling reduces capacity and can increase motor load
• Motor, hydraulic-drive, valve or control faults cause failure to start, reduced speed or protective trips

• Poor suction conditions, blockage or air ingress cause low flow, cavitation-like noise or unstable discharge
• Seal, packing or gasket wear causes visible leakage and falling pressure
• Bearing, shaft or coupling wear causes vibration, abnormal noise or rising temperature
• Impeller, screw or pumping-element wear or fouling reduces capacity and can increase motor load
• Motor, hydraulic-drive, valve or control faults cause failure to start, reduced speed or protective trips

• Poor suction conditions, blockage or air ingress cause low flow, cavitation-like noise or unstable discharge
• Seal, packing or gasket wear causes visible leakage and falling pressure
• Bearing, shaft or coupling wear causes vibration, abnormal noise or rising temperature
• Impeller, screw or pumping-element wear or fouling reduces capacity and can increase motor load
• Motor, hydraulic-drive, valve or control faults cause failure to start, reduced speed or protective trips

• Poor suction conditions, blockage or air ingress cause low flow, cavitation-like noise or unstable discharge
• Seal, packing or gasket wear causes visible leakage and falling pressure
• Bearing, shaft or coupling wear causes vibration, abnormal noise or rising temperature
• Impeller, screw or pumping-element wear or fouling reduces capacity and can increase motor load
• Motor, hydraulic-drive, valve or control faults cause failure to start, reduced speed or protective trips

• Poor suction conditions, blockage or air ingress cause low flow, cavitation-like noise or unstable discharge
• Seal, packing or gasket wear causes visible leakage and falling pressure
• Bearing, shaft or coupling wear causes vibration, abnormal noise or rising temperature
• Impeller, screw or pumping-element wear or fouling reduces capacity and can increase motor load
• Motor, hydraulic-drive, valve or control faults cause failure to start, reduced speed or protective trips

• Mechanical seal leakage despite bronze construction
• Bearing wear from misalignment
• Impeller erosion in heavy sand/silt waters
• Casing wear-ring increase

• Mechanical seal failure after extended service
• Bearing wear
• Casing erosion in particle-laden water
• Coupling alignment issues

• Loss of suction from empty source tank, closed valve, blocked strainer, air ingress, or poor priming causes low discharge pressure, cavitation noise, or no flow
• Seal or packing wear caused by ageing, dry running, shaft movement, or contamination produces visible leakage or loss of suction
• Bearing, coupling, gear, rotor, screw, impeller, or stator wear from poor lubrication, misalignment, debris, or normal service causes vibration, noise, heat, or reduced capacity
• Internal wear, erosion, or excessive clearances caused by abrasive or corrosive media reduces discharge pressure and increases recirculation or running time
• Motor, hydraulic drive, protection, or control faults caused by overload, electrical failure, or actuator problems result in trips, failed starting, or unstable speed

• Poor suction conditions, blockage or air ingress cause low flow, cavitation-like noise or unstable discharge
• Seal, packing or gasket wear causes visible leakage and falling pressure
• Bearing, shaft or coupling wear causes vibration, abnormal noise or rising temperature
• Impeller, screw or pumping-element wear or fouling reduces capacity and can increase motor load
• Motor, hydraulic-drive, valve or control faults cause failure to start, reduced speed or protective trips

• Poor suction conditions, blockage or air ingress cause low flow, cavitation-like noise or unstable discharge
• Seal, packing or gasket wear causes visible leakage and falling pressure
• Bearing, shaft or coupling wear causes vibration, abnormal noise or rising temperature
• Impeller, screw or pumping-element wear or fouling reduces capacity and can increase motor load
• Motor, hydraulic-drive, valve or control faults cause failure to start, reduced speed or protective trips

• Poor suction conditions, blockage or air ingress cause low flow, cavitation-like noise or unstable discharge
• Seal, packing or gasket wear causes visible leakage and falling pressure
• Bearing, shaft or coupling wear causes vibration, abnormal noise or rising temperature
• Impeller, screw or pumping-element wear or fouling reduces capacity and can increase motor load
• Motor, hydraulic-drive, valve or control faults cause failure to start, reduced speed or protective trips

• Loss of suction from empty source tank, closed valve, blocked strainer, air ingress, or poor priming causes low discharge pressure, cavitation noise, or no flow
• Seal or packing wear caused by ageing, dry running, shaft movement, or contamination produces visible leakage or loss of suction
• Bearing, coupling, gear, rotor, screw, impeller, or stator wear from poor lubrication, misalignment, debris, or normal service causes vibration, noise, heat, or reduced capacity
• Internal wear, erosion, or excessive clearances caused by abrasive or corrosive media reduces discharge pressure and increases recirculation or running time
• Motor, hydraulic drive, protection, or control faults caused by overload, electrical failure, or actuator problems result in trips, failed starting, or unstable speed

• Loss of suction from empty source tank, closed valve, blocked strainer, air ingress, or poor priming causes low discharge pressure, cavitation noise, or no flow
• Seal or packing wear caused by ageing, dry running, shaft movement, or contamination produces visible leakage or loss of suction
• Bearing, coupling, gear, rotor, screw, impeller, or stator wear from poor lubrication, misalignment, debris, or normal service causes vibration, noise, heat, or reduced capacity
• Internal wear, erosion, or excessive clearances caused by abrasive or corrosive media reduces discharge pressure and increases recirculation or running time
• Motor, hydraulic drive, protection, or control faults caused by overload, electrical failure, or actuator problems result in trips, failed starting, or unstable speed

• Loss of suction from empty source tank, closed valve, blocked strainer, air ingress, or poor priming causes low discharge pressure, cavitation noise, or no flow
• Seal or packing wear caused by ageing, dry running, shaft movement, or contamination produces visible leakage or loss of suction
• Bearing, coupling, gear, rotor, screw, impeller, or stator wear from poor lubrication, misalignment, debris, or normal service causes vibration, noise, heat, or reduced capacity
• Internal wear, erosion, or excessive clearances caused by abrasive or corrosive media reduces discharge pressure and increases recirculation or running time
• Motor, hydraulic drive, protection, or control faults caused by overload, electrical failure, or actuator problems result in trips, failed starting, or unstable speed

• Loss of suction from empty source tank, closed valve, blocked strainer, air ingress, or poor priming causes low discharge pressure, cavitation noise, or no flow
• Seal or packing wear caused by ageing, dry running, shaft movement, or contamination produces visible leakage or loss of suction
• Bearing, coupling, gear, rotor, screw, impeller, or stator wear from poor lubrication, misalignment, debris, or normal service causes vibration, noise, heat, or reduced capacity
• Internal wear, erosion, or excessive clearances caused by abrasive or corrosive media reduces discharge pressure and increases recirculation or running time
• Motor, hydraulic drive, protection, or control faults caused by overload, electrical failure, or actuator problems result in trips, failed starting, or unstable speed

• Loss of suction from empty source tank, closed valve, blocked strainer, air ingress, or poor priming causes low discharge pressure, cavitation noise, or no flow
• Seal or packing wear caused by ageing, dry running, shaft movement, or contamination produces visible leakage or loss of suction
• Bearing, coupling, gear, rotor, screw, impeller, or stator wear from poor lubrication, misalignment, debris, or normal service causes vibration, noise, heat, or reduced capacity
• Internal wear, erosion, or excessive clearances caused by abrasive or corrosive media reduces discharge pressure and increases recirculation or running time
• Motor, hydraulic drive, protection, or control faults caused by overload, electrical failure, or actuator problems result in trips, failed starting, or unstable speed

• Loss of suction from empty source tank, closed valve, blocked strainer, air ingress, or poor priming causes low discharge pressure, cavitation noise, or no flow
• Seal or packing wear caused by ageing, dry running, shaft movement, or contamination produces visible leakage or loss of suction
• Bearing, coupling, gear, rotor, screw, impeller, or stator wear from poor lubrication, misalignment, debris, or normal service causes vibration, noise, heat, or reduced capacity
• Internal wear, erosion, or excessive clearances caused by abrasive or corrosive media reduces discharge pressure and increases recirculation or running time
• Motor, hydraulic drive, protection, or control faults caused by overload, electrical failure, or actuator problems result in trips, failed starting, or unstable speed

• Loss of suction from empty source tank, closed valve, blocked strainer, air ingress, or poor priming causes low discharge pressure, cavitation noise, or no flow
• Seal or packing wear caused by ageing, dry running, shaft movement, or contamination produces visible leakage or loss of suction
• Bearing, coupling, gear, rotor, screw, impeller, or stator wear from poor lubrication, misalignment, debris, or normal service causes vibration, noise, heat, or reduced capacity
• Internal wear, erosion, or excessive clearances caused by abrasive or corrosive media reduces discharge pressure and increases recirculation or running time
• Motor, hydraulic drive, protection, or control faults caused by overload, electrical failure, or actuator problems result in trips, failed starting, or unstable speed

• Loss of suction from empty source tank, closed valve, blocked strainer, air ingress, or poor priming causes low discharge pressure, cavitation noise, or no flow
• Seal or packing wear caused by ageing, dry running, shaft movement, or contamination produces visible leakage or loss of suction
• Bearing, coupling, gear, rotor, screw, impeller, or stator wear from poor lubrication, misalignment, debris, or normal service causes vibration, noise, heat, or reduced capacity
• Internal wear, erosion, or excessive clearances caused by abrasive or corrosive media reduces discharge pressure and increases recirculation or running time
• Motor, hydraulic drive, protection, or control faults caused by overload, electrical failure, or actuator problems result in trips, failed starting, or unstable speed

• Loss of suction from empty source tank, closed valve, blocked strainer, air ingress, or poor priming causes low discharge pressure, cavitation noise, or no flow
• Seal or packing wear caused by ageing, dry running, shaft movement, or contamination produces visible leakage or loss of suction
• Bearing, coupling, gear, rotor, screw, impeller, or stator wear from poor lubrication, misalignment, debris, or normal service causes vibration, noise, heat, or reduced capacity
• Internal wear, erosion, or excessive clearances caused by abrasive or corrosive media reduces discharge pressure and increases recirculation or running time
• Motor, hydraulic drive, protection, or control faults caused by overload, electrical failure, or actuator problems result in trips, failed starting, or unstable speed

• Loss of suction from empty source tank, closed valve, blocked strainer, air ingress, or poor priming causes low discharge pressure, cavitation noise, or no flow
• Seal or packing wear caused by ageing, dry running, shaft movement, or contamination produces visible leakage or loss of suction
• Bearing, coupling, gear, rotor, screw, impeller, or stator wear from poor lubrication, misalignment, debris, or normal service causes vibration, noise, heat, or reduced capacity
• Internal wear, erosion, or excessive clearances caused by abrasive or corrosive media reduces discharge pressure and increases recirculation or running time
• Motor, hydraulic drive, protection, or control faults caused by overload, electrical failure, or actuator problems result in trips, failed starting, or unstable speed

• Loss of suction from empty source tank, closed valve, blocked strainer, air ingress, or poor priming causes low discharge pressure, cavitation noise, or no flow
• Seal or packing wear caused by ageing, dry running, shaft movement, or contamination produces visible leakage or loss of suction
• Bearing, coupling, gear, rotor, screw, impeller, or stator wear from poor lubrication, misalignment, debris, or normal service causes vibration, noise, heat, or reduced capacity
• Internal wear, erosion, or excessive clearances caused by abrasive or corrosive media reduces discharge pressure and increases recirculation or running time
• Motor, hydraulic drive, protection, or control faults caused by overload, electrical failure, or actuator problems result in trips, failed starting, or unstable speed

• Loss of suction from empty source tank, closed valve, blocked strainer, air ingress, or poor priming causes low discharge pressure, cavitation noise, or no flow
• Seal or packing wear caused by ageing, dry running, shaft movement, or contamination produces visible leakage or loss of suction
• Bearing, coupling, gear, rotor, screw, impeller, or stator wear from poor lubrication, misalignment, debris, or normal service causes vibration, noise, heat, or reduced capacity
• Internal wear, erosion, or excessive clearances caused by abrasive or corrosive media reduces discharge pressure and increases recirculation or running time
• Motor, hydraulic drive, protection, or control faults caused by overload, electrical failure, or actuator problems result in trips, failed starting, or unstable speed

• Loss of suction from empty source tank, closed valve, blocked strainer, air ingress, or poor priming causes low discharge pressure, cavitation noise, or no flow
• Seal or packing wear caused by ageing, dry running, shaft movement, or contamination produces visible leakage or loss of suction
• Bearing, coupling, gear, rotor, screw, impeller, or stator wear from poor lubrication, misalignment, debris, or normal service causes vibration, noise, heat, or reduced capacity
• Internal wear, erosion, or excessive clearances caused by abrasive or corrosive media reduces discharge pressure and increases recirculation or running time
• Motor, hydraulic drive, protection, or control faults caused by overload, electrical failure, or actuator problems result in trips, failed starting, or unstable speed

• Loss of suction from empty source tank, closed valve, blocked strainer, air ingress, or poor priming causes low discharge pressure, cavitation noise, or no flow
• Seal or packing wear caused by ageing, dry running, shaft movement, or contamination produces visible leakage or loss of suction
• Bearing, coupling, gear, rotor, screw, impeller, or stator wear from poor lubrication, misalignment, debris, or normal service causes vibration, noise, heat, or reduced capacity
• Internal wear, erosion, or excessive clearances caused by abrasive or corrosive media reduces discharge pressure and increases recirculation or running time
• Motor, hydraulic drive, protection, or control faults caused by overload, electrical failure, or actuator problems result in trips, failed starting, or unstable speed

• Loss of suction from empty source tank, closed valve, blocked strainer, air ingress, or poor priming causes low discharge pressure, cavitation noise, or no flow
• Seal or packing wear caused by ageing, dry running, shaft movement, or contamination produces visible leakage or loss of suction
• Bearing, coupling, gear, rotor, screw, impeller, or stator wear from poor lubrication, misalignment, debris, or normal service causes vibration, noise, heat, or reduced capacity
• Internal wear, erosion, or excessive clearances caused by abrasive or corrosive media reduces discharge pressure and increases recirculation or running time
• Motor, hydraulic drive, protection, or control faults caused by overload, electrical failure, or actuator problems result in trips, failed starting, or unstable speed

• Loss of suction from empty source tank, closed valve, blocked strainer, air ingress, or poor priming causes low discharge pressure, cavitation noise, or no flow
• Seal or packing wear caused by ageing, dry running, shaft movement, or contamination produces visible leakage or loss of suction
• Bearing, coupling, gear, rotor, screw, impeller, or stator wear from poor lubrication, misalignment, debris, or normal service causes vibration, noise, heat, or reduced capacity
• Internal wear, erosion, or excessive clearances caused by abrasive or corrosive media reduces discharge pressure and increases recirculation or running time
• Motor, hydraulic drive, protection, or control faults caused by overload, electrical failure, or actuator problems result in trips, failed starting, or unstable speed

• Loss of suction from empty source tank, closed valve, blocked strainer, air ingress, or poor priming causes low discharge pressure, cavitation noise, or no flow
• Seal or packing wear caused by ageing, dry running, shaft movement, or contamination produces visible leakage or loss of suction
• Bearing, coupling, gear, rotor, screw, impeller, or stator wear from poor lubrication, misalignment, debris, or normal service causes vibration, noise, heat, or reduced capacity
• Internal wear, erosion, or excessive clearances caused by abrasive or corrosive media reduces discharge pressure and increases recirculation or running time
• Motor, hydraulic drive, protection, or control faults caused by overload, electrical failure, or actuator problems result in trips, failed starting, or unstable speed

• Loss of suction from empty source tank, closed valve, blocked strainer, air ingress, or poor priming causes low discharge pressure, cavitation noise, or no flow
• Seal or packing wear caused by ageing, dry running, shaft movement, or contamination produces visible leakage or loss of suction
• Bearing, coupling, gear, rotor, screw, impeller, or stator wear from poor lubrication, misalignment, debris, or normal service causes vibration, noise, heat, or reduced capacity
• Internal wear, erosion, or excessive clearances caused by abrasive or corrosive media reduces discharge pressure and increases recirculation or running time
• Motor, hydraulic drive, protection, or control faults caused by overload, electrical failure, or actuator problems result in trips, failed starting, or unstable speed

• Loss of suction from empty source tank, closed valve, blocked strainer, air ingress, or poor priming causes low discharge pressure, cavitation noise, or no flow
• Seal or packing wear caused by ageing, dry running, shaft movement, or contamination produces visible leakage or loss of suction
• Bearing, coupling, gear, rotor, screw, impeller, or stator wear from poor lubrication, misalignment, debris, or normal service causes vibration, noise, heat, or reduced capacity
• Internal wear, erosion, or excessive clearances caused by abrasive or corrosive media reduces discharge pressure and increases recirculation or running time
• Motor, hydraulic drive, protection, or control faults caused by overload, electrical failure, or actuator problems result in trips, failed starting, or unstable speed

• Loss of suction from empty source tank, closed valve, blocked strainer, air ingress, or poor priming causes low discharge pressure, cavitation noise, or no flow
• Seal or packing wear caused by ageing, dry running, shaft movement, or contamination produces visible leakage or loss of suction
• Bearing, coupling, gear, rotor, screw, impeller, or stator wear from poor lubrication, misalignment, debris, or normal service causes vibration, noise, heat, or reduced capacity
• Internal wear, erosion, or excessive clearances caused by abrasive or corrosive media reduces discharge pressure and increases recirculation or running time
• Motor, hydraulic drive, protection, or control faults caused by overload, electrical failure, or actuator problems result in trips, failed starting, or unstable speed

• Loss of suction from empty source tank, closed valve, blocked strainer, air ingress, or poor priming causes low discharge pressure, cavitation noise, or no flow
• Seal or packing wear caused by ageing, dry running, shaft movement, or contamination produces visible leakage or loss of suction
• Bearing, coupling, gear, rotor, screw, impeller, or stator wear from poor lubrication, misalignment, debris, or normal service causes vibration, noise, heat, or reduced capacity
• Internal wear, erosion, or excessive clearances caused by abrasive or corrosive media reduces discharge pressure and increases recirculation or running time
• Motor, hydraulic drive, protection, or control faults caused by overload, electrical failure, or actuator problems result in trips, failed starting, or unstable speed

• Vertical shaft bearing wear after 15000h
• Mechanical seal failure at deck level
• Impeller wear in continuous duty
• Coupling alignment loss

• Mechanical seal leakage in seawater
• Vertical bearing wear
• Wear ring clearance increase
• Impeller erosion

• Poor suction conditions, blockage or air ingress cause low flow, cavitation-like noise or unstable discharge
• Seal, packing or gasket wear causes visible leakage and falling system pressure
• Bearing, shaft or coupling wear causes vibration, abnormal noise or rising temperature
• Impeller, screw or other pumping-element wear or fouling reduces capacity and may increase drive load
• Motor, hydraulic-drive, valve or control faults cause failure to start, reduced speed or protective trips

• Loss of suction or cavitation caused by low inlet head, blocked strainers, closed valves or air ingress can produce noise, vibration and reduced delivery
• Seal or gasket deterioration caused by wear, temperature or chemical attack can produce visible leakage or loss of prime
• Bearing, shaft or coupling wear caused by misalignment, poor lubrication or prolonged vibration can show as rising noise, temperature or vibration
• Impeller, screw, rotor or internal pumping-element wear caused by solids, corrosion or abrasive service can result in reduced capacity and longer transfer times
• Driver or control faults caused by motor, hydraulic, protection or instrumentation problems can cause failure to start, trips or unstable speed

• Loss of suction or cavitation caused by low inlet head, blocked strainers, closed valves or air ingress can produce noise, vibration and reduced delivery
• Seal or gasket deterioration caused by wear, temperature or chemical attack can produce visible leakage or loss of prime
• Bearing, shaft or coupling wear caused by misalignment, poor lubrication or prolonged vibration can show as rising noise, temperature or vibration
• Impeller, screw, rotor or internal pumping-element wear caused by solids, corrosion or abrasive service can result in reduced capacity and longer transfer times
• Driver or control faults caused by motor, hydraulic, protection or instrumentation problems can cause failure to start, trips or unstable speed

• Loss of suction or cavitation caused by low inlet head, blocked strainers, closed valves or air ingress can produce noise, vibration and reduced delivery
• Seal or gasket deterioration caused by wear, temperature or chemical attack can produce visible leakage or loss of prime
• Bearing, shaft or coupling wear caused by misalignment, poor lubrication or prolonged vibration can show as rising noise, temperature or vibration
• Impeller, screw, rotor or internal pumping-element wear caused by solids, corrosion or abrasive service can result in reduced capacity and longer transfer times
• Driver or control faults caused by motor, hydraulic, protection or instrumentation problems can cause failure to start, trips or unstable speed

• Loss of suction or cavitation caused by low inlet head, blocked strainers, closed valves or air ingress can produce noise, vibration and reduced delivery
• Seal or gasket deterioration caused by wear, temperature or chemical attack can produce visible leakage or loss of prime
• Bearing, shaft or coupling wear caused by misalignment, poor lubrication or prolonged vibration can show as rising noise, temperature or vibration
• Impeller, screw, rotor or internal pumping-element wear caused by solids, corrosion or abrasive service can result in reduced capacity and longer transfer times
• Driver or control faults caused by motor, hydraulic, protection or instrumentation problems can cause failure to start, trips or unstable speed

• Loss of suction or cavitation caused by low inlet head, blocked strainers, closed valves or air ingress can produce noise, vibration and reduced delivery
• Seal or gasket deterioration caused by wear, temperature or chemical attack can produce visible leakage or loss of prime
• Bearing, shaft or coupling wear caused by misalignment, poor lubrication or prolonged vibration can show as rising noise, temperature or vibration
• Impeller, screw, rotor or internal pumping-element wear caused by solids, corrosion or abrasive service can result in reduced capacity and longer transfer times
• Driver or control faults caused by motor, hydraulic, protection or instrumentation problems can cause failure to start, trips or unstable speed

• Loss of suction or cavitation caused by low inlet head, blocked strainers, closed valves or air ingress can produce noise, vibration and reduced delivery
• Seal or gasket deterioration caused by wear, temperature or chemical attack can produce visible leakage or loss of prime
• Bearing, shaft or coupling wear caused by misalignment, poor lubrication or prolonged vibration can show as rising noise, temperature or vibration
• Impeller, screw, rotor or internal pumping-element wear caused by solids, corrosion or abrasive service can result in reduced capacity and longer transfer times
• Driver or control faults caused by motor, hydraulic, protection or instrumentation problems can cause failure to start, trips or unstable speed

• Loss of suction or cavitation caused by low inlet head, blocked strainers, closed valves or air ingress can produce noise, vibration and reduced delivery
• Seal or gasket deterioration caused by wear, temperature or chemical attack can produce visible leakage or loss of prime
• Bearing, shaft or coupling wear caused by misalignment, poor lubrication or prolonged vibration can show as rising noise, temperature or vibration
• Impeller, screw, rotor or internal pumping-element wear caused by solids, corrosion or abrasive service can result in reduced capacity and longer transfer times
• Driver or control faults caused by motor, hydraulic, protection or instrumentation problems can cause failure to start, trips or unstable speed

• Loss of suction or cavitation caused by low inlet head, blocked strainers, closed valves or air ingress can produce noise, vibration and reduced delivery
• Seal or gasket deterioration caused by wear, temperature or chemical attack can produce visible leakage or loss of prime
• Bearing, shaft or coupling wear caused by misalignment, poor lubrication or prolonged vibration can show as rising noise, temperature or vibration
• Impeller, screw, rotor or internal pumping-element wear caused by solids, corrosion or abrasive service can result in reduced capacity and longer transfer times
• Driver or control faults caused by motor, hydraulic, protection or instrumentation problems can cause failure to start, trips or unstable speed

• Loss of suction or cavitation caused by low inlet head, blocked strainers, closed valves or air ingress can produce noise, vibration and reduced delivery
• Seal or gasket deterioration caused by wear, temperature or chemical attack can produce visible leakage or loss of prime
• Bearing, shaft or coupling wear caused by misalignment, poor lubrication or prolonged vibration can show as rising noise, temperature or vibration
• Impeller, screw, rotor or internal pumping-element wear caused by solids, corrosion or abrasive service can result in reduced capacity and longer transfer times
• Driver or control faults caused by motor, hydraulic, protection or instrumentation problems can cause failure to start, trips or unstable speed

• Loss of suction or cavitation caused by low inlet head, blocked strainers, closed valves or air ingress can produce noise, vibration and reduced delivery
• Seal or gasket deterioration caused by wear, temperature or chemical attack can produce visible leakage or loss of prime
• Bearing, shaft or coupling wear caused by misalignment, poor lubrication or prolonged vibration can show as rising noise, temperature or vibration
• Impeller, screw, rotor or internal pumping-element wear caused by solids, corrosion or abrasive service can result in reduced capacity and longer transfer times
• Driver or control faults caused by motor, hydraulic, protection or instrumentation problems can cause failure to start, trips or unstable speed

• Loss of suction or cavitation caused by low inlet head, blocked strainers, closed valves or air ingress can produce noise, vibration and reduced delivery
• Seal or gasket deterioration caused by wear, temperature or chemical attack can produce visible leakage or loss of prime
• Bearing, shaft or coupling wear caused by misalignment, poor lubrication or prolonged vibration can show as rising noise, temperature or vibration
• Impeller, screw, rotor or internal pumping-element wear caused by solids, corrosion or abrasive service can result in reduced capacity and longer transfer times
• Driver or control faults caused by motor, hydraulic, protection or instrumentation problems can cause failure to start, trips or unstable speed

• Loss of suction or cavitation caused by low inlet head, blocked strainers, closed valves or air ingress can produce noise, vibration and reduced delivery
• Seal or gasket deterioration caused by wear, temperature or chemical attack can produce visible leakage or loss of prime
• Bearing, shaft or coupling wear caused by misalignment, poor lubrication or prolonged vibration can show as rising noise, temperature or vibration
• Impeller, screw, rotor or internal pumping-element wear caused by solids, corrosion or abrasive service can result in reduced capacity and longer transfer times
• Driver or control faults caused by motor, hydraulic, protection or instrumentation problems can cause failure to start, trips or unstable speed

• Loss of suction or cavitation caused by low inlet head, blocked strainers, closed valves or air ingress can produce noise, vibration and reduced delivery
• Seal or gasket deterioration caused by wear, temperature or chemical attack can produce visible leakage or loss of prime
• Bearing, shaft or coupling wear caused by misalignment, poor lubrication or prolonged vibration can show as rising noise, temperature or vibration
• Impeller, screw, rotor or internal pumping-element wear caused by solids, corrosion or abrasive service can result in reduced capacity and longer transfer times
• Driver or control faults caused by motor, hydraulic, protection or instrumentation problems can cause failure to start, trips or unstable speed

• Loss of suction or cavitation caused by low inlet head, blocked strainers, closed valves or air ingress can produce noise, vibration and reduced delivery
• Seal or gasket deterioration caused by wear, temperature or chemical attack can produce visible leakage or loss of prime
• Bearing, shaft or coupling wear caused by misalignment, poor lubrication or prolonged vibration can show as rising noise, temperature or vibration
• Impeller, screw, rotor or internal pumping-element wear caused by solids, corrosion or abrasive service can result in reduced capacity and longer transfer times
• Driver or control faults caused by motor, hydraulic, protection or instrumentation problems can cause failure to start, trips or unstable speed

• Poor suction conditions, blockage or air ingress cause low flow, cavitation-like noise or unstable discharge
• Seal, packing or gasket wear causes visible leakage and falling system pressure
• Bearing, shaft or coupling wear causes vibration, abnormal noise or rising temperature
• Impeller, screw or other pumping-element wear or fouling reduces capacity and may increase drive load
• Motor, hydraulic-drive, valve or control faults cause failure to start, reduced speed or protective trips

• Loss of suction or cavitation caused by low inlet head, blocked strainers, closed valves or air ingress can produce noise, vibration and reduced delivery
• Seal or gasket deterioration caused by wear, temperature or chemical attack can produce visible leakage or loss of prime
• Bearing, shaft or coupling wear caused by misalignment, poor lubrication or prolonged vibration can show as rising noise, temperature or vibration
• Impeller, screw, rotor or internal pumping-element wear caused by solids, corrosion or abrasive service can result in reduced capacity and longer transfer times
• Driver or control faults caused by motor, hydraulic, protection or instrumentation problems can cause failure to start, trips or unstable speed

• Loss of suction or cavitation caused by low inlet head, blocked strainers, closed valves or air ingress can produce noise, vibration and reduced delivery
• Seal or gasket deterioration caused by wear, temperature or chemical attack can produce visible leakage or loss of prime
• Bearing, shaft or coupling wear caused by misalignment, poor lubrication or prolonged vibration can show as rising noise, temperature or vibration
• Impeller, screw, rotor or internal pumping-element wear caused by solids, corrosion or abrasive service can result in reduced capacity and longer transfer times
• Driver or control faults caused by motor, hydraulic, protection or instrumentation problems can cause failure to start, trips or unstable speed

• Loss of suction or cavitation caused by low inlet head, blocked strainers, closed valves or air ingress can produce noise, vibration and reduced delivery
• Seal or gasket deterioration caused by wear, temperature or chemical attack can produce visible leakage or loss of prime
• Bearing, shaft or coupling wear caused by misalignment, poor lubrication or prolonged vibration can show as rising noise, temperature or vibration
• Impeller, screw, rotor or internal pumping-element wear caused by solids, corrosion or abrasive service can result in reduced capacity and longer transfer times
• Driver or control faults caused by motor, hydraulic, protection or instrumentation problems can cause failure to start, trips or unstable speed

• Loss of suction or cavitation caused by low inlet head, blocked strainers, closed valves or air ingress can produce noise, vibration and reduced delivery
• Seal or gasket deterioration caused by wear, temperature or chemical attack can produce visible leakage or loss of prime
• Bearing, shaft or coupling wear caused by misalignment, poor lubrication or prolonged vibration can show as rising noise, temperature or vibration
• Impeller, screw, rotor or internal pumping-element wear caused by solids, corrosion or abrasive service can result in reduced capacity and longer transfer times
• Driver or control faults caused by motor, hydraulic, protection or instrumentation problems can cause failure to start, trips or unstable speed

• Loss of suction or cavitation caused by low inlet head, blocked strainers, closed valves or air ingress can produce noise, vibration and reduced delivery
• Seal or gasket deterioration caused by wear, temperature or chemical attack can produce visible leakage or loss of prime
• Bearing, shaft or coupling wear caused by misalignment, poor lubrication or prolonged vibration can show as rising noise, temperature or vibration
• Impeller, screw, rotor or internal pumping-element wear caused by solids, corrosion or abrasive service can result in reduced capacity and longer transfer times
• Driver or control faults caused by motor, hydraulic, protection or instrumentation problems can cause failure to start, trips or unstable speed

• Loss of suction or cavitation caused by low inlet head, blocked strainers, closed valves or air ingress can produce noise, vibration and reduced delivery
• Seal or gasket deterioration caused by wear, temperature or chemical attack can produce visible leakage or loss of prime
• Bearing, shaft or coupling wear caused by misalignment, poor lubrication or prolonged vibration can show as rising noise, temperature or vibration
• Impeller, screw, rotor or internal pumping-element wear caused by solids, corrosion or abrasive service can result in reduced capacity and longer transfer times
• Driver or control faults caused by motor, hydraulic, protection or instrumentation problems can cause failure to start, trips or unstable speed

• Loss of suction or cavitation caused by low inlet head, blocked strainers, closed valves or air ingress can produce noise, vibration and reduced delivery
• Seal or gasket deterioration caused by wear, temperature or chemical attack can produce visible leakage or loss of prime
• Bearing, shaft or coupling wear caused by misalignment, poor lubrication or prolonged vibration can show as rising noise, temperature or vibration
• Impeller, screw, rotor or internal pumping-element wear caused by solids, corrosion or abrasive service can result in reduced capacity and longer transfer times
• Driver or control faults caused by motor, hydraulic, protection or instrumentation problems can cause failure to start, trips or unstable speed

• Loss of suction or cavitation caused by low inlet head, blocked strainers, closed valves or air ingress can produce noise, vibration and reduced delivery
• Seal or gasket deterioration caused by wear, temperature or chemical attack can produce visible leakage or loss of prime
• Bearing, shaft or coupling wear caused by misalignment, poor lubrication or prolonged vibration can show as rising noise, temperature or vibration
• Impeller, screw, rotor or internal pumping-element wear caused by solids, corrosion or abrasive service can result in reduced capacity and longer transfer times
• Driver or control faults caused by motor, hydraulic, protection or instrumentation problems can cause failure to start, trips or unstable speed

• Loss of suction or cavitation caused by low inlet head, blocked strainers, closed valves or air ingress can produce noise, vibration and reduced delivery
• Seal or gasket deterioration caused by wear, temperature or chemical attack can produce visible leakage or loss of prime
• Bearing, shaft or coupling wear caused by misalignment, poor lubrication or prolonged vibration can show as rising noise, temperature or vibration
• Impeller, screw, rotor or internal pumping-element wear caused by solids, corrosion or abrasive service can result in reduced capacity and longer transfer times
• Driver or control faults caused by motor, hydraulic, protection or instrumentation problems can cause failure to start, trips or unstable speed

• Loss of suction or cavitation caused by low inlet head, blocked strainers, closed valves or air ingress can produce noise, vibration and reduced delivery
• Seal or gasket deterioration caused by wear, temperature or chemical attack can produce visible leakage or loss of prime
• Bearing, shaft or coupling wear caused by misalignment, poor lubrication or prolonged vibration can show as rising noise, temperature or vibration
• Impeller, screw, rotor or internal pumping-element wear caused by solids, corrosion or abrasive service can result in reduced capacity and longer transfer times
• Driver or control faults caused by motor, hydraulic, protection or instrumentation problems can cause failure to start, trips or unstable speed

• Mechanical seal leakage
• Motor bearing wear
• Impeller wear
• Cavitation damage

• Area: Mechanical seal (mechanical face seal) - wear, leakage, surface roughness
  Check: Visual inspection: leakage quantity 1-10 ml/24h is normal. If >20% water content in oil chamber after 1 week of operation, seal is defective. Seal faces NOT to be touched with bare fingers. At standstill: inject silicone oil between pump housing and coupling to prevent face adhesion.
• Area: Bearing (ball/roller bearing) - wear, bearing clearance, lubrication film breakdown
  Check: Check circulation lubrication: relubricate SKF LGHP2 grease using grease gun. Measure bearing clearance with caliper per workshop guidelines. After 100,000 operating hours perform replacement. Motors up to 11 kW are permanently lubricated (no relubrication required). Abnormal vibrations/noise indicate bearing wear.
• Area: Impeller - wear, cavitation, erosion, wear rings
  Check: Visual inspection for: erosion, pitting, cavitation damage, cracks, dents or irregularities on impeller blade leading edges and hub. Inspect wear rings (front/rear) for scratches/deformation. Measure clearance between impeller and pump housing with caliper. Decrease in flow rate/pressure build-up/current consumption indicates impeller damage.
• Area: Motor - wear, bearing wear, heat development, contamination
  Check: Motor to be inspected visually and cleaned regularly for adequate cooling. In dusty environments inspect more frequently. Monitor temperature (elevated heat development = early fault signal). Detect bearing wear through vibrations/noise. Compare current consumption vs. rated value. Motor bearings in 2/4/6-pole motors up to 11 kW are maintenance-free lubricated; larger motors to be lubricated regularly.
• Area: Öl im Pumpenraum - Verschmutzung, Wassergehalt, Alterung
  Check: Check oil level after 1 week of operation (after seal replacement). Monitor water content: >20% water means seal failure. Oil change every 3,000 operating hours or 1x/year (Shell Ondina 917 or similar). Inspect oil colour, odour, turbidity for contamination/combustion products.
• Area: Corrosion in seawater applications - material degradation in corrosive environment
  Check: For seawater/marine environments: pump must be designed in high-grade stainless steel (EN 1.4517 Duplex, AISI 316) or titanium. Perform visual inspection for surface rust, pittings, discoloration. High-grade stainless steel designs (EN 1.4408) for T>40°C and chemical fluids. Use special seals (Super Duplex) and sealants for aggressive media.

Type-universal inspection/maintenance points for pumps (Grundfos Marine, Mega-swarm 2026-06). Per-model specs not auto-filled.

• Area: Mechanical seal (mechanical face seal) - wear, leakage, surface roughness
  Check: Visual inspection: leakage quantity 1-10 ml/24h is normal. If >20% water content in oil chamber after 1 week of operation, seal is defective. Seal faces NOT to be touched with bare fingers. At standstill: inject silicone oil between pump housing and coupling to prevent face adhesion.
• Area: Bearing (ball/roller bearing) - wear, bearing clearance, lubrication film breakdown
  Check: Check circulation lubrication: relubricate SKF LGHP2 grease using grease gun. Measure bearing clearance with caliper per workshop guidelines. After 100,000 operating hours perform replacement. Motors up to 11 kW are permanently lubricated (no relubrication required). Abnormal vibrations/noise indicate bearing wear.
• Area: Impeller - wear, cavitation, erosion, wear rings
  Check: Visual inspection for: erosion, pitting, cavitation damage, cracks, dents or irregularities on impeller blade leading edges and hub. Inspect wear rings (front/rear) for scratches/deformation. Measure clearance between impeller and pump housing with caliper. Decrease in flow rate/pressure build-up/current consumption indicates impeller damage.
• Area: Motor - wear, bearing wear, heat development, contamination
  Check: Motor to be inspected visually and cleaned regularly for adequate cooling. In dusty environments inspect more frequently. Monitor temperature (elevated heat development = early fault signal). Detect bearing wear through vibrations/noise. Compare current consumption vs. rated value. Motor bearings in 2/4/6-pole motors up to 11 kW are maintenance-free lubricated; larger motors to be lubricated regularly.
• Area: Öl im Pumpenraum - Verschmutzung, Wassergehalt, Alterung
  Check: Check oil level after 1 week of operation (after seal replacement). Monitor water content: >20% water means seal failure. Oil change every 3,000 operating hours or 1x/year (Shell Ondina 917 or similar). Inspect oil colour, odour, turbidity for contamination/combustion products.
• Area: Corrosion in seawater applications - material degradation in corrosive environment
  Check: For seawater/marine environments: pump must be designed in high-grade stainless steel (EN 1.4517 Duplex, AISI 316) or titanium. Perform visual inspection for surface rust, pittings, discoloration. High-grade stainless steel designs (EN 1.4408) for T>40°C and chemical fluids. Use special seals (Super Duplex) and sealants for aggressive media.

Type-universal inspection/maintenance points for pumps (Grundfos Marine, Mega-swarm 2026-06). Per-model specs not auto-filled.

• Area: Mechanical seal (mechanical face seal) - wear, leakage, surface roughness
  Check: Visual inspection: leakage quantity 1-10 ml/24h is normal. If >20% water content in oil chamber after 1 week of operation, seal is defective. Seal faces NOT to be touched with bare fingers. At standstill: inject silicone oil between pump housing and coupling to prevent face adhesion.
• Area: Bearing (ball/roller bearing) - wear, bearing clearance, lubrication film breakdown
  Check: Check circulation lubrication: relubricate SKF LGHP2 grease using grease gun. Measure bearing clearance with caliper per workshop guidelines. After 100,000 operating hours perform replacement. Motors up to 11 kW are permanently lubricated (no relubrication required). Abnormal vibrations/noise indicate bearing wear.
• Area: Impeller - wear, cavitation, erosion, wear rings
  Check: Visual inspection for: erosion, pitting, cavitation damage, cracks, dents or irregularities on impeller blade leading edges and hub. Inspect wear rings (front/rear) for scratches/deformation. Measure clearance between impeller and pump housing with caliper. Decrease in flow rate/pressure build-up/current consumption indicates impeller damage.
• Area: Motor - wear, bearing wear, heat development, contamination
  Check: Motor to be inspected visually and cleaned regularly for adequate cooling. In dusty environments inspect more frequently. Monitor temperature (elevated heat development = early fault signal). Detect bearing wear through vibrations/noise. Compare current consumption vs. rated value. Motor bearings in 2/4/6-pole motors up to 11 kW are maintenance-free lubricated; larger motors to be lubricated regularly.
• Area: Öl im Pumpenraum - Verschmutzung, Wassergehalt, Alterung
  Check: Check oil level after 1 week of operation (after seal replacement). Monitor water content: >20% water means seal failure. Oil change every 3,000 operating hours or 1x/year (Shell Ondina 917 or similar). Inspect oil colour, odour, turbidity for contamination/combustion products.
• Area: Corrosion in seawater applications - material degradation in corrosive environment
  Check: For seawater/marine environments: pump must be designed in high-grade stainless steel (EN 1.4517 Duplex, AISI 316) or titanium. Perform visual inspection for surface rust, pittings, discoloration. High-grade stainless steel designs (EN 1.4408) for T>40°C and chemical fluids. Use special seals (Super Duplex) and sealants for aggressive media.

Type-universal inspection/maintenance points for pumps (Grundfos Marine, Mega-swarm 2026-06). Per-model specs not auto-filled.

• Area: Mechanical seal (mechanical face seal) - wear, leakage, surface roughness
  Check: Visual inspection: leakage quantity 1-10 ml/24h is normal. If >20% water content in oil chamber after 1 week of operation, seal is defective. Seal faces NOT to be touched with bare fingers. At standstill: inject silicone oil between pump housing and coupling to prevent face adhesion.
• Area: Bearing (ball/roller bearing) - wear, bearing clearance, lubrication film breakdown
  Check: Check circulation lubrication: relubricate SKF LGHP2 grease using grease gun. Measure bearing clearance with caliper per workshop guidelines. After 100,000 operating hours perform replacement. Motors up to 11 kW are permanently lubricated (no relubrication required). Abnormal vibrations/noise indicate bearing wear.
• Area: Impeller - wear, cavitation, erosion, wear rings
  Check: Visual inspection for: erosion, pitting, cavitation damage, cracks, dents or irregularities on impeller blade leading edges and hub. Inspect wear rings (front/rear) for scratches/deformation. Measure clearance between impeller and pump housing with caliper. Decrease in flow rate/pressure build-up/current consumption indicates impeller damage.
• Area: Motor - wear, bearing wear, heat development, contamination
  Check: Motor to be inspected visually and cleaned regularly for adequate cooling. In dusty environments inspect more frequently. Monitor temperature (elevated heat development = early fault signal). Detect bearing wear through vibrations/noise. Compare current consumption vs. rated value. Motor bearings in 2/4/6-pole motors up to 11 kW are maintenance-free lubricated; larger motors to be lubricated regularly.
• Area: Öl im Pumpenraum - Verschmutzung, Wassergehalt, Alterung
  Check: Check oil level after 1 week of operation (after seal replacement). Monitor water content: >20% water means seal failure. Oil change every 3,000 operating hours or 1x/year (Shell Ondina 917 or similar). Inspect oil colour, odour, turbidity for contamination/combustion products.
• Area: Corrosion in seawater applications - material degradation in corrosive environment
  Check: For seawater/marine environments: pump must be designed in high-grade stainless steel (EN 1.4517 Duplex, AISI 316) or titanium. Perform visual inspection for surface rust, pittings, discoloration. High-grade stainless steel designs (EN 1.4408) for T>40°C and chemical fluids. Use special seals (Super Duplex) and sealants for aggressive media.

Type-universal inspection/maintenance points for pumps (Grundfos Marine, Mega-swarm 2026-06). Per-model specs not auto-filled.

• Area: Mechanical seal (mechanical face seal) - wear, leakage, surface roughness
  Check: Visual inspection: leakage quantity 1-10 ml/24h is normal. If >20% water content in oil chamber after 1 week of operation, seal is defective. Seal faces NOT to be touched with bare fingers. At standstill: inject silicone oil between pump housing and coupling to prevent face adhesion.
• Area: Bearing (ball/roller bearing) - wear, bearing clearance, lubrication film breakdown
  Check: Check circulation lubrication: relubricate SKF LGHP2 grease using grease gun. Measure bearing clearance with caliper per workshop guidelines. After 100,000 operating hours perform replacement. Motors up to 11 kW are permanently lubricated (no relubrication required). Abnormal vibrations/noise indicate bearing wear.
• Area: Impeller - wear, cavitation, erosion, wear rings
  Check: Visual inspection for: erosion, pitting, cavitation damage, cracks, dents or irregularities on impeller blade leading edges and hub. Inspect wear rings (front/rear) for scratches/deformation. Measure clearance between impeller and pump housing with caliper. Decrease in flow rate/pressure build-up/current consumption indicates impeller damage.
• Area: Motor - wear, bearing wear, heat development, contamination
  Check: Motor to be inspected visually and cleaned regularly for adequate cooling. In dusty environments inspect more frequently. Monitor temperature (elevated heat development = early fault signal). Detect bearing wear through vibrations/noise. Compare current consumption vs. rated value. Motor bearings in 2/4/6-pole motors up to 11 kW are maintenance-free lubricated; larger motors to be lubricated regularly.
• Area: Öl im Pumpenraum - Verschmutzung, Wassergehalt, Alterung
  Check: Check oil level after 1 week of operation (after seal replacement). Monitor water content: >20% water means seal failure. Oil change every 3,000 operating hours or 1x/year (Shell Ondina 917 or similar). Inspect oil colour, odour, turbidity for contamination/combustion products.
• Area: Corrosion in seawater applications - material degradation in corrosive environment
  Check: For seawater/marine environments: pump must be designed in high-grade stainless steel (EN 1.4517 Duplex, AISI 316) or titanium. Perform visual inspection for surface rust, pittings, discoloration. High-grade stainless steel designs (EN 1.4408) for T>40°C and chemical fluids. Use special seals (Super Duplex) and sealants for aggressive media.

Type-universal inspection/maintenance points for pumps (Grundfos Marine, Mega-swarm 2026-06). Per-model specs not auto-filled.

• Area: Mechanical seal (mechanical face seal) - wear, leakage, surface roughness
  Check: Visual inspection: leakage quantity 1-10 ml/24h is normal. If >20% water content in oil chamber after 1 week of operation, seal is defective. Seal faces NOT to be touched with bare fingers. At standstill: inject silicone oil between pump housing and coupling to prevent face adhesion.
• Area: Bearing (ball/roller bearing) - wear, bearing clearance, lubrication film breakdown
  Check: Check circulation lubrication: relubricate SKF LGHP2 grease using grease gun. Measure bearing clearance with caliper per workshop guidelines. After 100,000 operating hours perform replacement. Motors up to 11 kW are permanently lubricated (no relubrication required). Abnormal vibrations/noise indicate bearing wear.
• Area: Impeller - wear, cavitation, erosion, wear rings
  Check: Visual inspection for: erosion, pitting, cavitation damage, cracks, dents or irregularities on impeller blade leading edges and hub. Inspect wear rings (front/rear) for scratches/deformation. Measure clearance between impeller and pump housing with caliper. Decrease in flow rate/pressure build-up/current consumption indicates impeller damage.
• Area: Motor - wear, bearing wear, heat development, contamination
  Check: Motor to be inspected visually and cleaned regularly for adequate cooling. In dusty environments inspect more frequently. Monitor temperature (elevated heat development = early fault signal). Detect bearing wear through vibrations/noise. Compare current consumption vs. rated value. Motor bearings in 2/4/6-pole motors up to 11 kW are maintenance-free lubricated; larger motors to be lubricated regularly.
• Area: Öl im Pumpenraum - Verschmutzung, Wassergehalt, Alterung
  Check: Check oil level after 1 week of operation (after seal replacement). Monitor water content: >20% water means seal failure. Oil change every 3,000 operating hours or 1x/year (Shell Ondina 917 or similar). Inspect oil colour, odour, turbidity for contamination/combustion products.
• Area: Corrosion in seawater applications - material degradation in corrosive environment
  Check: For seawater/marine environments: pump must be designed in high-grade stainless steel (EN 1.4517 Duplex, AISI 316) or titanium. Perform visual inspection for surface rust, pittings, discoloration. High-grade stainless steel designs (EN 1.4408) for T>40°C and chemical fluids. Use special seals (Super Duplex) and sealants for aggressive media.

Type-universal inspection/maintenance points for pumps (Grundfos Marine, Mega-swarm 2026-06). Per-model specs not auto-filled.

• Area: Mechanical seal (mechanical face seal) - wear, leakage, surface roughness
  Check: Visual inspection: leakage quantity 1-10 ml/24h is normal. If >20% water content in oil chamber after 1 week of operation, seal is defective. Seal faces NOT to be touched with bare fingers. At standstill: inject silicone oil between pump housing and coupling to prevent face adhesion.
• Area: Bearing (ball/roller bearing) - wear, bearing clearance, lubrication film breakdown
  Check: Check circulation lubrication: relubricate SKF LGHP2 grease using grease gun. Measure bearing clearance with caliper per workshop guidelines. After 100,000 operating hours perform replacement. Motors up to 11 kW are permanently lubricated (no relubrication required). Abnormal vibrations/noise indicate bearing wear.
• Area: Impeller - wear, cavitation, erosion, wear rings
  Check: Visual inspection for: erosion, pitting, cavitation damage, cracks, dents or irregularities on impeller blade leading edges and hub. Inspect wear rings (front/rear) for scratches/deformation. Measure clearance between impeller and pump housing with caliper. Decrease in flow rate/pressure build-up/current consumption indicates impeller damage.
• Area: Motor - wear, bearing wear, heat development, contamination
  Check: Motor to be inspected visually and cleaned regularly for adequate cooling. In dusty environments inspect more frequently. Monitor temperature (elevated heat development = early fault signal). Detect bearing wear through vibrations/noise. Compare current consumption vs. rated value. Motor bearings in 2/4/6-pole motors up to 11 kW are maintenance-free lubricated; larger motors to be lubricated regularly.
• Area: Öl im Pumpenraum - Verschmutzung, Wassergehalt, Alterung
  Check: Check oil level after 1 week of operation (after seal replacement). Monitor water content: >20% water means seal failure. Oil change every 3,000 operating hours or 1x/year (Shell Ondina 917 or similar). Inspect oil colour, odour, turbidity for contamination/combustion products.
• Area: Corrosion in seawater applications - material degradation in corrosive environment
  Check: For seawater/marine environments: pump must be designed in high-grade stainless steel (EN 1.4517 Duplex, AISI 316) or titanium. Perform visual inspection for surface rust, pittings, discoloration. High-grade stainless steel designs (EN 1.4408) for T>40°C and chemical fluids. Use special seals (Super Duplex) and sealants for aggressive media.

Type-universal inspection/maintenance points for pumps (Grundfos Marine, Mega-swarm 2026-06). Per-model specs not auto-filled.

• Area: Mechanical seal (mechanical face seal) - wear, leakage, surface roughness
  Check: Visual inspection: leakage quantity 1-10 ml/24h is normal. If >20% water content in oil chamber after 1 week of operation, seal is defective. Seal faces NOT to be touched with bare fingers. At standstill: inject silicone oil between pump housing and coupling to prevent face adhesion.
• Area: Bearing (ball/roller bearing) - wear, bearing clearance, lubrication film breakdown
  Check: Check circulation lubrication: relubricate SKF LGHP2 grease using grease gun. Measure bearing clearance with caliper per workshop guidelines. After 100,000 operating hours perform replacement. Motors up to 11 kW are permanently lubricated (no relubrication required). Abnormal vibrations/noise indicate bearing wear.
• Area: Impeller - wear, cavitation, erosion, wear rings
  Check: Visual inspection for: erosion, pitting, cavitation damage, cracks, dents or irregularities on impeller blade leading edges and hub. Inspect wear rings (front/rear) for scratches/deformation. Measure clearance between impeller and pump housing with caliper. Decrease in flow rate/pressure build-up/current consumption indicates impeller damage.
• Area: Motor - wear, bearing wear, heat development, contamination
  Check: Motor to be inspected visually and cleaned regularly for adequate cooling. In dusty environments inspect more frequently. Monitor temperature (elevated heat development = early fault signal). Detect bearing wear through vibrations/noise. Compare current consumption vs. rated value. Motor bearings in 2/4/6-pole motors up to 11 kW are maintenance-free lubricated; larger motors to be lubricated regularly.
• Area: Öl im Pumpenraum - Verschmutzung, Wassergehalt, Alterung
  Check: Check oil level after 1 week of operation (after seal replacement). Monitor water content: >20% water means seal failure. Oil change every 3,000 operating hours or 1x/year (Shell Ondina 917 or similar). Inspect oil colour, odour, turbidity for contamination/combustion products.
• Area: Corrosion in seawater applications - material degradation in corrosive environment
  Check: For seawater/marine environments: pump must be designed in high-grade stainless steel (EN 1.4517 Duplex, AISI 316) or titanium. Perform visual inspection for surface rust, pittings, discoloration. High-grade stainless steel designs (EN 1.4408) for T>40°C and chemical fluids. Use special seals (Super Duplex) and sealants for aggressive media.

Type-universal inspection/maintenance points for pumps (Grundfos Marine, Mega-swarm 2026-06). Per-model specs not auto-filled.

• Area: Mechanical seal (mechanical face seal) - wear, leakage, surface roughness
  Check: Visual inspection: leakage quantity 1-10 ml/24h is normal. If >20% water content in oil chamber after 1 week of operation, seal is defective. Seal faces NOT to be touched with bare fingers. At standstill: inject silicone oil between pump housing and coupling to prevent face adhesion.
• Area: Bearing (ball/roller bearing) - wear, bearing clearance, lubrication film breakdown
  Check: Check circulation lubrication: relubricate SKF LGHP2 grease using grease gun. Measure bearing clearance with caliper per workshop guidelines. After 100,000 operating hours perform replacement. Motors up to 11 kW are permanently lubricated (no relubrication required). Abnormal vibrations/noise indicate bearing wear.
• Area: Impeller - wear, cavitation, erosion, wear rings
  Check: Visual inspection for: erosion, pitting, cavitation damage, cracks, dents or irregularities on impeller blade leading edges and hub. Inspect wear rings (front/rear) for scratches/deformation. Measure clearance between impeller and pump housing with caliper. Decrease in flow rate/pressure build-up/current consumption indicates impeller damage.
• Area: Motor - wear, bearing wear, heat development, contamination
  Check: Motor to be inspected visually and cleaned regularly for adequate cooling. In dusty environments inspect more frequently. Monitor temperature (elevated heat development = early fault signal). Detect bearing wear through vibrations/noise. Compare current consumption vs. rated value. Motor bearings in 2/4/6-pole motors up to 11 kW are maintenance-free lubricated; larger motors to be lubricated regularly.
• Area: Öl im Pumpenraum - Verschmutzung, Wassergehalt, Alterung
  Check: Check oil level after 1 week of operation (after seal replacement). Monitor water content: >20% water means seal failure. Oil change every 3,000 operating hours or 1x/year (Shell Ondina 917 or similar). Inspect oil colour, odour, turbidity for contamination/combustion products.
• Area: Corrosion in seawater applications - material degradation in corrosive environment
  Check: For seawater/marine environments: pump must be designed in high-grade stainless steel (EN 1.4517 Duplex, AISI 316) or titanium. Perform visual inspection for surface rust, pittings, discoloration. High-grade stainless steel designs (EN 1.4408) for T>40°C and chemical fluids. Use special seals (Super Duplex) and sealants for aggressive media.

Type-universal inspection/maintenance points for pumps (Grundfos Marine, Mega-swarm 2026-06). Per-model specs not auto-filled.

• Area: Mechanical seal (mechanical face seal) - wear, leakage, surface roughness
  Check: Visual inspection: leakage quantity 1-10 ml/24h is normal. If >20% water content in oil chamber after 1 week of operation, seal is defective. Seal faces NOT to be touched with bare fingers. At standstill: inject silicone oil between pump housing and coupling to prevent face adhesion.
• Area: Bearing (ball/roller bearing) - wear, bearing clearance, lubrication film breakdown
  Check: Check circulation lubrication: relubricate SKF LGHP2 grease using grease gun. Measure bearing clearance with caliper per workshop guidelines. After 100,000 operating hours perform replacement. Motors up to 11 kW are permanently lubricated (no relubrication required). Abnormal vibrations/noise indicate bearing wear.
• Area: Impeller - wear, cavitation, erosion, wear rings
  Check: Visual inspection for: erosion, pitting, cavitation damage, cracks, dents or irregularities on impeller blade leading edges and hub. Inspect wear rings (front/rear) for scratches/deformation. Measure clearance between impeller and pump housing with caliper. Decrease in flow rate/pressure build-up/current consumption indicates impeller damage.
• Area: Motor - wear, bearing wear, heat development, contamination
  Check: Motor to be inspected visually and cleaned regularly for adequate cooling. In dusty environments inspect more frequently. Monitor temperature (elevated heat development = early fault signal). Detect bearing wear through vibrations/noise. Compare current consumption vs. rated value. Motor bearings in 2/4/6-pole motors up to 11 kW are maintenance-free lubricated; larger motors to be lubricated regularly.
• Area: Öl im Pumpenraum - Verschmutzung, Wassergehalt, Alterung
  Check: Check oil level after 1 week of operation (after seal replacement). Monitor water content: >20% water means seal failure. Oil change every 3,000 operating hours or 1x/year (Shell Ondina 917 or similar). Inspect oil colour, odour, turbidity for contamination/combustion products.
• Area: Corrosion in seawater applications - material degradation in corrosive environment
  Check: For seawater/marine environments: pump must be designed in high-grade stainless steel (EN 1.4517 Duplex, AISI 316) or titanium. Perform visual inspection for surface rust, pittings, discoloration. High-grade stainless steel designs (EN 1.4408) for T>40°C and chemical fluids. Use special seals (Super Duplex) and sealants for aggressive media.

Type-universal inspection/maintenance points for pumps (Grundfos Marine, Mega-swarm 2026-06). Per-model specs not auto-filled.

• Area: Mechanical seal (mechanical face seal) - wear, leakage, surface roughness
  Check: Visual inspection: leakage quantity 1-10 ml/24h is normal. If >20% water content in oil chamber after 1 week of operation, seal is defective. Seal faces NOT to be touched with bare fingers. At standstill: inject silicone oil between pump housing and coupling to prevent face adhesion.
• Area: Bearing (ball/roller bearing) - wear, bearing clearance, lubrication film breakdown
  Check: Check circulation lubrication: relubricate SKF LGHP2 grease using grease gun. Measure bearing clearance with caliper per workshop guidelines. After 100,000 operating hours perform replacement. Motors up to 11 kW are permanently lubricated (no relubrication required). Abnormal vibrations/noise indicate bearing wear.
• Area: Impeller - wear, cavitation, erosion, wear rings
  Check: Visual inspection for: erosion, pitting, cavitation damage, cracks, dents or irregularities on impeller blade leading edges and hub. Inspect wear rings (front/rear) for scratches/deformation. Measure clearance between impeller and pump housing with caliper. Decrease in flow rate/pressure build-up/current consumption indicates impeller damage.
• Area: Motor - wear, bearing wear, heat development, contamination
  Check: Motor to be inspected visually and cleaned regularly for adequate cooling. In dusty environments inspect more frequently. Monitor temperature (elevated heat development = early fault signal). Detect bearing wear through vibrations/noise. Compare current consumption vs. rated value. Motor bearings in 2/4/6-pole motors up to 11 kW are maintenance-free lubricated; larger motors to be lubricated regularly.
• Area: Öl im Pumpenraum - Verschmutzung, Wassergehalt, Alterung
  Check: Check oil level after 1 week of operation (after seal replacement). Monitor water content: >20% water means seal failure. Oil change every 3,000 operating hours or 1x/year (Shell Ondina 917 or similar). Inspect oil colour, odour, turbidity for contamination/combustion products.
• Area: Corrosion in seawater applications - material degradation in corrosive environment
  Check: For seawater/marine environments: pump must be designed in high-grade stainless steel (EN 1.4517 Duplex, AISI 316) or titanium. Perform visual inspection for surface rust, pittings, discoloration. High-grade stainless steel designs (EN 1.4408) for T>40°C and chemical fluids. Use special seals (Super Duplex) and sealants for aggressive media.

Type-universal inspection/maintenance points for pumps (Grundfos Marine, Mega-swarm 2026-06). Per-model specs not auto-filled.

• Area: Mechanical seal (mechanical face seal) - wear, leakage, surface roughness
  Check: Visual inspection: leakage quantity 1-10 ml/24h is normal. If >20% water content in oil chamber after 1 week of operation, seal is defective. Seal faces NOT to be touched with bare fingers. At standstill: inject silicone oil between pump housing and coupling to prevent face adhesion.
• Area: Bearing (ball/roller bearing) - wear, bearing clearance, lubrication film breakdown
  Check: Check circulation lubrication: relubricate SKF LGHP2 grease using grease gun. Measure bearing clearance with caliper per workshop guidelines. After 100,000 operating hours perform replacement. Motors up to 11 kW are permanently lubricated (no relubrication required). Abnormal vibrations/noise indicate bearing wear.
• Area: Impeller - wear, cavitation, erosion, wear rings
  Check: Visual inspection for: erosion, pitting, cavitation damage, cracks, dents or irregularities on impeller blade leading edges and hub. Inspect wear rings (front/rear) for scratches/deformation. Measure clearance between impeller and pump housing with caliper. Decrease in flow rate/pressure build-up/current consumption indicates impeller damage.
• Area: Motor - wear, bearing wear, heat development, contamination
  Check: Motor to be inspected visually and cleaned regularly for adequate cooling. In dusty environments inspect more frequently. Monitor temperature (elevated heat development = early fault signal). Detect bearing wear through vibrations/noise. Compare current consumption vs. rated value. Motor bearings in 2/4/6-pole motors up to 11 kW are maintenance-free lubricated; larger motors to be lubricated regularly.
• Area: Öl im Pumpenraum - Verschmutzung, Wassergehalt, Alterung
  Check: Check oil level after 1 week of operation (after seal replacement). Monitor water content: >20% water means seal failure. Oil change every 3,000 operating hours or 1x/year (Shell Ondina 917 or similar). Inspect oil colour, odour, turbidity for contamination/combustion products.
• Area: Corrosion in seawater applications - material degradation in corrosive environment
  Check: For seawater/marine environments: pump must be designed in high-grade stainless steel (EN 1.4517 Duplex, AISI 316) or titanium. Perform visual inspection for surface rust, pittings, discoloration. High-grade stainless steel designs (EN 1.4408) for T>40°C and chemical fluids. Use special seals (Super Duplex) and sealants for aggressive media.

Type-universal inspection/maintenance points for pumps (Grundfos Marine, Mega-swarm 2026-06). Per-model specs not auto-filled.

• Area: Mechanical seal (mechanical face seal) - wear, leakage, surface roughness
  Check: Visual inspection: leakage quantity 1-10 ml/24h is normal. If >20% water content in oil chamber after 1 week of operation, seal is defective. Seal faces NOT to be touched with bare fingers. At standstill: inject silicone oil between pump housing and coupling to prevent face adhesion.
• Area: Bearing (ball/roller bearing) - wear, bearing clearance, lubrication film breakdown
  Check: Check circulation lubrication: relubricate SKF LGHP2 grease using grease gun. Measure bearing clearance with caliper per workshop guidelines. After 100,000 operating hours perform replacement. Motors up to 11 kW are permanently lubricated (no relubrication required). Abnormal vibrations/noise indicate bearing wear.
• Area: Impeller - wear, cavitation, erosion, wear rings
  Check: Visual inspection for: erosion, pitting, cavitation damage, cracks, dents or irregularities on impeller blade leading edges and hub. Inspect wear rings (front/rear) for scratches/deformation. Measure clearance between impeller and pump housing with caliper. Decrease in flow rate/pressure build-up/current consumption indicates impeller damage.
• Area: Motor - wear, bearing wear, heat development, contamination
  Check: Motor to be inspected visually and cleaned regularly for adequate cooling. In dusty environments inspect more frequently. Monitor temperature (elevated heat development = early fault signal). Detect bearing wear through vibrations/noise. Compare current consumption vs. rated value. Motor bearings in 2/4/6-pole motors up to 11 kW are maintenance-free lubricated; larger motors to be lubricated regularly.
• Area: Öl im Pumpenraum - Verschmutzung, Wassergehalt, Alterung
  Check: Check oil level after 1 week of operation (after seal replacement). Monitor water content: >20% water means seal failure. Oil change every 3,000 operating hours or 1x/year (Shell Ondina 917 or similar). Inspect oil colour, odour, turbidity for contamination/combustion products.
• Area: Corrosion in seawater applications - material degradation in corrosive environment
  Check: For seawater/marine environments: pump must be designed in high-grade stainless steel (EN 1.4517 Duplex, AISI 316) or titanium. Perform visual inspection for surface rust, pittings, discoloration. High-grade stainless steel designs (EN 1.4408) for T>40°C and chemical fluids. Use special seals (Super Duplex) and sealants for aggressive media.

Type-universal inspection/maintenance points for pumps (Grundfos Marine, Mega-swarm 2026-06). Per-model specs not auto-filled.

• Area: Mechanical seal (mechanical face seal) - wear, leakage, surface roughness
  Check: Visual inspection: leakage quantity 1-10 ml/24h is normal. If >20% water content in oil chamber after 1 week of operation, seal is defective. Seal faces NOT to be touched with bare fingers. At standstill: inject silicone oil between pump housing and coupling to prevent face adhesion.
• Area: Bearing (ball/roller bearing) - wear, bearing clearance, lubrication film breakdown
  Check: Check circulation lubrication: relubricate SKF LGHP2 grease using grease gun. Measure bearing clearance with caliper per workshop guidelines. After 100,000 operating hours perform replacement. Motors up to 11 kW are permanently lubricated (no relubrication required). Abnormal vibrations/noise indicate bearing wear.
• Area: Impeller - wear, cavitation, erosion, wear rings
  Check: Visual inspection for: erosion, pitting, cavitation damage, cracks, dents or irregularities on impeller blade leading edges and hub. Inspect wear rings (front/rear) for scratches/deformation. Measure clearance between impeller and pump housing with caliper. Decrease in flow rate/pressure build-up/current consumption indicates impeller damage.
• Area: Motor - wear, bearing wear, heat development, contamination
  Check: Motor to be inspected visually and cleaned regularly for adequate cooling. In dusty environments inspect more frequently. Monitor temperature (elevated heat development = early fault signal). Detect bearing wear through vibrations/noise. Compare current consumption vs. rated value. Motor bearings in 2/4/6-pole motors up to 11 kW are maintenance-free lubricated; larger motors to be lubricated regularly.
• Area: Öl im Pumpenraum - Verschmutzung, Wassergehalt, Alterung
  Check: Check oil level after 1 week of operation (after seal replacement). Monitor water content: >20% water means seal failure. Oil change every 3,000 operating hours or 1x/year (Shell Ondina 917 or similar). Inspect oil colour, odour, turbidity for contamination/combustion products.
• Area: Corrosion in seawater applications - material degradation in corrosive environment
  Check: For seawater/marine environments: pump must be designed in high-grade stainless steel (EN 1.4517 Duplex, AISI 316) or titanium. Perform visual inspection for surface rust, pittings, discoloration. High-grade stainless steel designs (EN 1.4408) for T>40°C and chemical fluids. Use special seals (Super Duplex) and sealants for aggressive media.

Type-universal inspection/maintenance points for pumps (Grundfos Marine, Mega-swarm 2026-06). Per-model specs not auto-filled.

• Area: Mechanical seal (mechanical face seal) - wear, leakage, surface roughness
  Check: Visual inspection: leakage quantity 1-10 ml/24h is normal. If >20% water content in oil chamber after 1 week of operation, seal is defective. Seal faces NOT to be touched with bare fingers. At standstill: inject silicone oil between pump housing and coupling to prevent face adhesion.
• Area: Bearing (ball/roller bearing) - wear, bearing clearance, lubrication film breakdown
  Check: Check circulation lubrication: relubricate SKF LGHP2 grease using grease gun. Measure bearing clearance with caliper per workshop guidelines. After 100,000 operating hours perform replacement. Motors up to 11 kW are permanently lubricated (no relubrication required). Abnormal vibrations/noise indicate bearing wear.
• Area: Impeller - wear, cavitation, erosion, wear rings
  Check: Visual inspection for: erosion, pitting, cavitation damage, cracks, dents or irregularities on impeller blade leading edges and hub. Inspect wear rings (front/rear) for scratches/deformation. Measure clearance between impeller and pump housing with caliper. Decrease in flow rate/pressure build-up/current consumption indicates impeller damage.
• Area: Motor - wear, bearing wear, heat development, contamination
  Check: Motor to be inspected visually and cleaned regularly for adequate cooling. In dusty environments inspect more frequently. Monitor temperature (elevated heat development = early fault signal). Detect bearing wear through vibrations/noise. Compare current consumption vs. rated value. Motor bearings in 2/4/6-pole motors up to 11 kW are maintenance-free lubricated; larger motors to be lubricated regularly.
• Area: Öl im Pumpenraum - Verschmutzung, Wassergehalt, Alterung
  Check: Check oil level after 1 week of operation (after seal replacement). Monitor water content: >20% water means seal failure. Oil change every 3,000 operating hours or 1x/year (Shell Ondina 917 or similar). Inspect oil colour, odour, turbidity for contamination/combustion products.
• Area: Corrosion in seawater applications - material degradation in corrosive environment
  Check: For seawater/marine environments: pump must be designed in high-grade stainless steel (EN 1.4517 Duplex, AISI 316) or titanium. Perform visual inspection for surface rust, pittings, discoloration. High-grade stainless steel designs (EN 1.4408) for T>40°C and chemical fluids. Use special seals (Super Duplex) and sealants for aggressive media.

Type-universal inspection/maintenance points for pumps (Grundfos Marine, Mega-swarm 2026-06). Per-model specs not auto-filled.

• Area: Mechanical seal (mechanical face seal) - wear, leakage, surface roughness
  Check: Visual inspection: leakage quantity 1-10 ml/24h is normal. If >20% water content in oil chamber after 1 week of operation, seal is defective. Seal faces NOT to be touched with bare fingers. At standstill: inject silicone oil between pump housing and coupling to prevent face adhesion.
• Area: Bearing (ball/roller bearing) - wear, bearing clearance, lubrication film breakdown
  Check: Check circulation lubrication: relubricate SKF LGHP2 grease using grease gun. Measure bearing clearance with caliper per workshop guidelines. After 100,000 operating hours perform replacement. Motors up to 11 kW are permanently lubricated (no relubrication required). Abnormal vibrations/noise indicate bearing wear.
• Area: Impeller - wear, cavitation, erosion, wear rings
  Check: Visual inspection for: erosion, pitting, cavitation damage, cracks, dents or irregularities on impeller blade leading edges and hub. Inspect wear rings (front/rear) for scratches/deformation. Measure clearance between impeller and pump housing with caliper. Decrease in flow rate/pressure build-up/current consumption indicates impeller damage.
• Area: Motor - wear, bearing wear, heat development, contamination
  Check: Motor to be inspected visually and cleaned regularly for adequate cooling. In dusty environments inspect more frequently. Monitor temperature (elevated heat development = early fault signal). Detect bearing wear through vibrations/noise. Compare current consumption vs. rated value. Motor bearings in 2/4/6-pole motors up to 11 kW are maintenance-free lubricated; larger motors to be lubricated regularly.
• Area: Öl im Pumpenraum - Verschmutzung, Wassergehalt, Alterung
  Check: Check oil level after 1 week of operation (after seal replacement). Monitor water content: >20% water means seal failure. Oil change every 3,000 operating hours or 1x/year (Shell Ondina 917 or similar). Inspect oil colour, odour, turbidity for contamination/combustion products.
• Area: Corrosion in seawater applications - material degradation in corrosive environment
  Check: For seawater/marine environments: pump must be designed in high-grade stainless steel (EN 1.4517 Duplex, AISI 316) or titanium. Perform visual inspection for surface rust, pittings, discoloration. High-grade stainless steel designs (EN 1.4408) for T>40°C and chemical fluids. Use special seals (Super Duplex) and sealants for aggressive media.

Type-universal inspection/maintenance points for pumps (Grundfos Marine, Mega-swarm 2026-06). Per-model specs not auto-filled.

• Area: Mechanical seal (mechanical face seal) - wear, leakage, surface roughness
  Check: Visual inspection: leakage quantity 1-10 ml/24h is normal. If >20% water content in oil chamber after 1 week of operation, seal is defective. Seal faces NOT to be touched with bare fingers. At standstill: inject silicone oil between pump housing and coupling to prevent face adhesion.
• Area: Bearing (ball/roller bearing) - wear, bearing clearance, lubrication film breakdown
  Check: Check circulation lubrication: relubricate SKF LGHP2 grease using grease gun. Measure bearing clearance with caliper per workshop guidelines. After 100,000 operating hours perform replacement. Motors up to 11 kW are permanently lubricated (no relubrication required). Abnormal vibrations/noise indicate bearing wear.
• Area: Impeller - wear, cavitation, erosion, wear rings
  Check: Visual inspection for: erosion, pitting, cavitation damage, cracks, dents or irregularities on impeller blade leading edges and hub. Inspect wear rings (front/rear) for scratches/deformation. Measure clearance between impeller and pump housing with caliper. Decrease in flow rate/pressure build-up/current consumption indicates impeller damage.
• Area: Motor - wear, bearing wear, heat development, contamination
  Check: Motor to be inspected visually and cleaned regularly for adequate cooling. In dusty environments inspect more frequently. Monitor temperature (elevated heat development = early fault signal). Detect bearing wear through vibrations/noise. Compare current consumption vs. rated value. Motor bearings in 2/4/6-pole motors up to 11 kW are maintenance-free lubricated; larger motors to be lubricated regularly.
• Area: Öl im Pumpenraum - Verschmutzung, Wassergehalt, Alterung
  Check: Check oil level after 1 week of operation (after seal replacement). Monitor water content: >20% water means seal failure. Oil change every 3,000 operating hours or 1x/year (Shell Ondina 917 or similar). Inspect oil colour, odour, turbidity for contamination/combustion products.
• Area: Corrosion in seawater applications - material degradation in corrosive environment
  Check: For seawater/marine environments: pump must be designed in high-grade stainless steel (EN 1.4517 Duplex, AISI 316) or titanium. Perform visual inspection for surface rust, pittings, discoloration. High-grade stainless steel designs (EN 1.4408) for T>40°C and chemical fluids. Use special seals (Super Duplex) and sealants for aggressive media.

Type-universal inspection/maintenance points for pumps (Grundfos Marine, Mega-swarm 2026-06). Per-model specs not auto-filled.

• Area: Mechanical seal (mechanical face seal) - wear, leakage, surface roughness
  Check: Visual inspection: leakage quantity 1-10 ml/24h is normal. If >20% water content in oil chamber after 1 week of operation, seal is defective. Seal faces NOT to be touched with bare fingers. At standstill: inject silicone oil between pump housing and coupling to prevent face adhesion.
• Area: Bearing (ball/roller bearing) - wear, bearing clearance, lubrication film breakdown
  Check: Check circulation lubrication: relubricate SKF LGHP2 grease using grease gun. Measure bearing clearance with caliper per workshop guidelines. After 100,000 operating hours perform replacement. Motors up to 11 kW are permanently lubricated (no relubrication required). Abnormal vibrations/noise indicate bearing wear.
• Area: Impeller - wear, cavitation, erosion, wear rings
  Check: Visual inspection for: erosion, pitting, cavitation damage, cracks, dents or irregularities on impeller blade leading edges and hub. Inspect wear rings (front/rear) for scratches/deformation. Measure clearance between impeller and pump housing with caliper. Decrease in flow rate/pressure build-up/current consumption indicates impeller damage.
• Area: Motor - wear, bearing wear, heat development, contamination
  Check: Motor to be inspected visually and cleaned regularly for adequate cooling. In dusty environments inspect more frequently. Monitor temperature (elevated heat development = early fault signal). Detect bearing wear through vibrations/noise. Compare current consumption vs. rated value. Motor bearings in 2/4/6-pole motors up to 11 kW are maintenance-free lubricated; larger motors to be lubricated regularly.
• Area: Öl im Pumpenraum - Verschmutzung, Wassergehalt, Alterung
  Check: Check oil level after 1 week of operation (after seal replacement). Monitor water content: >20% water means seal failure. Oil change every 3,000 operating hours or 1x/year (Shell Ondina 917 or similar). Inspect oil colour, odour, turbidity for contamination/combustion products.
• Area: Corrosion in seawater applications - material degradation in corrosive environment
  Check: For seawater/marine environments: pump must be designed in high-grade stainless steel (EN 1.4517 Duplex, AISI 316) or titanium. Perform visual inspection for surface rust, pittings, discoloration. High-grade stainless steel designs (EN 1.4408) for T>40°C and chemical fluids. Use special seals (Super Duplex) and sealants for aggressive media.

Type-universal inspection/maintenance points for pumps (Grundfos Marine, Mega-swarm 2026-06). Per-model specs not auto-filled.

• Area: Mechanical seal (mechanical face seal) - wear, leakage, surface roughness
  Check: Visual inspection: leakage quantity 1-10 ml/24h is normal. If >20% water content in oil chamber after 1 week of operation, seal is defective. Seal faces NOT to be touched with bare fingers. At standstill: inject silicone oil between pump housing and coupling to prevent face adhesion.
• Area: Bearing (ball/roller bearing) - wear, bearing clearance, lubrication film breakdown
  Check: Check circulation lubrication: relubricate SKF LGHP2 grease using grease gun. Measure bearing clearance with caliper per workshop guidelines. After 100,000 operating hours perform replacement. Motors up to 11 kW are permanently lubricated (no relubrication required). Abnormal vibrations/noise indicate bearing wear.
• Area: Impeller - wear, cavitation, erosion, wear rings
  Check: Visual inspection for: erosion, pitting, cavitation damage, cracks, dents or irregularities on impeller blade leading edges and hub. Inspect wear rings (front/rear) for scratches/deformation. Measure clearance between impeller and pump housing with caliper. Decrease in flow rate/pressure build-up/current consumption indicates impeller damage.
• Area: Motor - wear, bearing wear, heat development, contamination
  Check: Motor to be inspected visually and cleaned regularly for adequate cooling. In dusty environments inspect more frequently. Monitor temperature (elevated heat development = early fault signal). Detect bearing wear through vibrations/noise. Compare current consumption vs. rated value. Motor bearings in 2/4/6-pole motors up to 11 kW are maintenance-free lubricated; larger motors to be lubricated regularly.
• Area: Öl im Pumpenraum - Verschmutzung, Wassergehalt, Alterung
  Check: Check oil level after 1 week of operation (after seal replacement). Monitor water content: >20% water means seal failure. Oil change every 3,000 operating hours or 1x/year (Shell Ondina 917 or similar). Inspect oil colour, odour, turbidity for contamination/combustion products.
• Area: Corrosion in seawater applications - material degradation in corrosive environment
  Check: For seawater/marine environments: pump must be designed in high-grade stainless steel (EN 1.4517 Duplex, AISI 316) or titanium. Perform visual inspection for surface rust, pittings, discoloration. High-grade stainless steel designs (EN 1.4408) for T>40°C and chemical fluids. Use special seals (Super Duplex) and sealants for aggressive media.

Type-universal inspection/maintenance points for pumps (Grundfos Marine, Mega-swarm 2026-06). Per-model specs not auto-filled.

• Area: Mechanical seal (mechanical face seal) - wear, leakage, surface roughness
  Check: Visual inspection: leakage quantity 1-10 ml/24h is normal. If >20% water content in oil chamber after 1 week of operation, seal is defective. Seal faces NOT to be touched with bare fingers. At standstill: inject silicone oil between pump housing and coupling to prevent face adhesion.
• Area: Bearing (ball/roller bearing) - wear, bearing clearance, lubrication film breakdown
  Check: Check circulation lubrication: relubricate SKF LGHP2 grease using grease gun. Measure bearing clearance with caliper per workshop guidelines. After 100,000 operating hours perform replacement. Motors up to 11 kW are permanently lubricated (no relubrication required). Abnormal vibrations/noise indicate bearing wear.
• Area: Impeller - wear, cavitation, erosion, wear rings
  Check: Visual inspection for: erosion, pitting, cavitation damage, cracks, dents or irregularities on impeller blade leading edges and hub. Inspect wear rings (front/rear) for scratches/deformation. Measure clearance between impeller and pump housing with caliper. Decrease in flow rate/pressure build-up/current consumption indicates impeller damage.
• Area: Motor - wear, bearing wear, heat development, contamination
  Check: Motor to be inspected visually and cleaned regularly for adequate cooling. In dusty environments inspect more frequently. Monitor temperature (elevated heat development = early fault signal). Detect bearing wear through vibrations/noise. Compare current consumption vs. rated value. Motor bearings in 2/4/6-pole motors up to 11 kW are maintenance-free lubricated; larger motors to be lubricated regularly.
• Area: Öl im Pumpenraum - Verschmutzung, Wassergehalt, Alterung
  Check: Check oil level after 1 week of operation (after seal replacement). Monitor water content: >20% water means seal failure. Oil change every 3,000 operating hours or 1x/year (Shell Ondina 917 or similar). Inspect oil colour, odour, turbidity for contamination/combustion products.
• Area: Corrosion in seawater applications - material degradation in corrosive environment
  Check: For seawater/marine environments: pump must be designed in high-grade stainless steel (EN 1.4517 Duplex, AISI 316) or titanium. Perform visual inspection for surface rust, pittings, discoloration. High-grade stainless steel designs (EN 1.4408) for T>40°C and chemical fluids. Use special seals (Super Duplex) and sealants for aggressive media.

Type-universal inspection/maintenance points for pumps (Grundfos Marine, Mega-swarm 2026-06). Per-model specs not auto-filled.

• Area: Mechanical seal (mechanical face seal) - wear, leakage, surface roughness
  Check: Visual inspection: leakage quantity 1-10 ml/24h is normal. If >20% water content in oil chamber after 1 week of operation, seal is defective. Seal faces NOT to be touched with bare fingers. At standstill: inject silicone oil between pump housing and coupling to prevent face adhesion.
• Area: Bearing (ball/roller bearing) - wear, bearing clearance, lubrication film breakdown
  Check: Check circulation lubrication: relubricate SKF LGHP2 grease using grease gun. Measure bearing clearance with caliper per workshop guidelines. After 100,000 operating hours perform replacement. Motors up to 11 kW are permanently lubricated (no relubrication required). Abnormal vibrations/noise indicate bearing wear.
• Area: Impeller - wear, cavitation, erosion, wear rings
  Check: Visual inspection for: erosion, pitting, cavitation damage, cracks, dents or irregularities on impeller blade leading edges and hub. Inspect wear rings (front/rear) for scratches/deformation. Measure clearance between impeller and pump housing with caliper. Decrease in flow rate/pressure build-up/current consumption indicates impeller damage.
• Area: Motor - wear, bearing wear, heat development, contamination
  Check: Motor to be inspected visually and cleaned regularly for adequate cooling. In dusty environments inspect more frequently. Monitor temperature (elevated heat development = early fault signal). Detect bearing wear through vibrations/noise. Compare current consumption vs. rated value. Motor bearings in 2/4/6-pole motors up to 11 kW are maintenance-free lubricated; larger motors to be lubricated regularly.
• Area: Öl im Pumpenraum - Verschmutzung, Wassergehalt, Alterung
  Check: Check oil level after 1 week of operation (after seal replacement). Monitor water content: >20% water means seal failure. Oil change every 3,000 operating hours or 1x/year (Shell Ondina 917 or similar). Inspect oil colour, odour, turbidity for contamination/combustion products.
• Area: Corrosion in seawater applications - material degradation in corrosive environment
  Check: For seawater/marine environments: pump must be designed in high-grade stainless steel (EN 1.4517 Duplex, AISI 316) or titanium. Perform visual inspection for surface rust, pittings, discoloration. High-grade stainless steel designs (EN 1.4408) for T>40°C and chemical fluids. Use special seals (Super Duplex) and sealants for aggressive media.

Type-universal inspection/maintenance points for pumps (Grundfos Marine, Mega-swarm 2026-06). Per-model specs not auto-filled.

• Area: Mechanical seal (mechanical face seal) - wear, leakage, surface roughness
  Check: Visual inspection: leakage quantity 1-10 ml/24h is normal. If >20% water content in oil chamber after 1 week of operation, seal is defective. Seal faces NOT to be touched with bare fingers. At standstill: inject silicone oil between pump housing and coupling to prevent face adhesion.
• Area: Bearing (ball/roller bearing) - wear, bearing clearance, lubrication film breakdown
  Check: Check circulation lubrication: relubricate SKF LGHP2 grease using grease gun. Measure bearing clearance with caliper per workshop guidelines. After 100,000 operating hours perform replacement. Motors up to 11 kW are permanently lubricated (no relubrication required). Abnormal vibrations/noise indicate bearing wear.
• Area: Impeller - wear, cavitation, erosion, wear rings
  Check: Visual inspection for: erosion, pitting, cavitation damage, cracks, dents or irregularities on impeller blade leading edges and hub. Inspect wear rings (front/rear) for scratches/deformation. Measure clearance between impeller and pump housing with caliper. Decrease in flow rate/pressure build-up/current consumption indicates impeller damage.
• Area: Motor - wear, bearing wear, heat development, contamination
  Check: Motor to be inspected visually and cleaned regularly for adequate cooling. In dusty environments inspect more frequently. Monitor temperature (elevated heat development = early fault signal). Detect bearing wear through vibrations/noise. Compare current consumption vs. rated value. Motor bearings in 2/4/6-pole motors up to 11 kW are maintenance-free lubricated; larger motors to be lubricated regularly.
• Area: Öl im Pumpenraum - Verschmutzung, Wassergehalt, Alterung
  Check: Check oil level after 1 week of operation (after seal replacement). Monitor water content: >20% water means seal failure. Oil change every 3,000 operating hours or 1x/year (Shell Ondina 917 or similar). Inspect oil colour, odour, turbidity for contamination/combustion products.
• Area: Corrosion in seawater applications - material degradation in corrosive environment
  Check: For seawater/marine environments: pump must be designed in high-grade stainless steel (EN 1.4517 Duplex, AISI 316) or titanium. Perform visual inspection for surface rust, pittings, discoloration. High-grade stainless steel designs (EN 1.4408) for T>40°C and chemical fluids. Use special seals (Super Duplex) and sealants for aggressive media.

Type-universal inspection/maintenance points for pumps (Grundfos Marine, Mega-swarm 2026-06). Per-model specs not auto-filled.

• Area: Mechanical seal (mechanical face seal) - wear, leakage, surface roughness
  Check: Visual inspection: leakage quantity 1-10 ml/24h is normal. If >20% water content in oil chamber after 1 week of operation, seal is defective. Seal faces NOT to be touched with bare fingers. At standstill: inject silicone oil between pump housing and coupling to prevent face adhesion.
• Area: Bearing (ball/roller bearing) - wear, bearing clearance, lubrication film breakdown
  Check: Check circulation lubrication: relubricate SKF LGHP2 grease using grease gun. Measure bearing clearance with caliper per workshop guidelines. After 100,000 operating hours perform replacement. Motors up to 11 kW are permanently lubricated (no relubrication required). Abnormal vibrations/noise indicate bearing wear.
• Area: Impeller - wear, cavitation, erosion, wear rings
  Check: Visual inspection for: erosion, pitting, cavitation damage, cracks, dents or irregularities on impeller blade leading edges and hub. Inspect wear rings (front/rear) for scratches/deformation. Measure clearance between impeller and pump housing with caliper. Decrease in flow rate/pressure build-up/current consumption indicates impeller damage.
• Area: Motor - wear, bearing wear, heat development, contamination
  Check: Motor to be inspected visually and cleaned regularly for adequate cooling. In dusty environments inspect more frequently. Monitor temperature (elevated heat development = early fault signal). Detect bearing wear through vibrations/noise. Compare current consumption vs. rated value. Motor bearings in 2/4/6-pole motors up to 11 kW are maintenance-free lubricated; larger motors to be lubricated regularly.
• Area: Öl im Pumpenraum - Verschmutzung, Wassergehalt, Alterung
  Check: Check oil level after 1 week of operation (after seal replacement). Monitor water content: >20% water means seal failure. Oil change every 3,000 operating hours or 1x/year (Shell Ondina 917 or similar). Inspect oil colour, odour, turbidity for contamination/combustion products.
• Area: Corrosion in seawater applications - material degradation in corrosive environment
  Check: For seawater/marine environments: pump must be designed in high-grade stainless steel (EN 1.4517 Duplex, AISI 316) or titanium. Perform visual inspection for surface rust, pittings, discoloration. High-grade stainless steel designs (EN 1.4408) for T>40°C and chemical fluids. Use special seals (Super Duplex) and sealants for aggressive media.

Type-universal inspection/maintenance points for pumps (Grundfos Marine, Mega-swarm 2026-06). Per-model specs not auto-filled.

• Area: Mechanical seal (mechanical face seal) - wear, leakage, surface roughness
  Check: Visual inspection: leakage quantity 1-10 ml/24h is normal. If >20% water content in oil chamber after 1 week of operation, seal is defective. Seal faces NOT to be touched with bare fingers. At standstill: inject silicone oil between pump housing and coupling to prevent face adhesion.
• Area: Bearing (ball/roller bearing) - wear, bearing clearance, lubrication film breakdown
  Check: Check circulation lubrication: relubricate SKF LGHP2 grease using grease gun. Measure bearing clearance with caliper per workshop guidelines. After 100,000 operating hours perform replacement. Motors up to 11 kW are permanently lubricated (no relubrication required). Abnormal vibrations/noise indicate bearing wear.
• Area: Impeller - wear, cavitation, erosion, wear rings
  Check: Visual inspection for: erosion, pitting, cavitation damage, cracks, dents or irregularities on impeller blade leading edges and hub. Inspect wear rings (front/rear) for scratches/deformation. Measure clearance between impeller and pump housing with caliper. Decrease in flow rate/pressure build-up/current consumption indicates impeller damage.
• Area: Motor - wear, bearing wear, heat development, contamination
  Check: Motor to be inspected visually and cleaned regularly for adequate cooling. In dusty environments inspect more frequently. Monitor temperature (elevated heat development = early fault signal). Detect bearing wear through vibrations/noise. Compare current consumption vs. rated value. Motor bearings in 2/4/6-pole motors up to 11 kW are maintenance-free lubricated; larger motors to be lubricated regularly.
• Area: Öl im Pumpenraum - Verschmutzung, Wassergehalt, Alterung
  Check: Check oil level after 1 week of operation (after seal replacement). Monitor water content: >20% water means seal failure. Oil change every 3,000 operating hours or 1x/year (Shell Ondina 917 or similar). Inspect oil colour, odour, turbidity for contamination/combustion products.
• Area: Corrosion in seawater applications - material degradation in corrosive environment
  Check: For seawater/marine environments: pump must be designed in high-grade stainless steel (EN 1.4517 Duplex, AISI 316) or titanium. Perform visual inspection for surface rust, pittings, discoloration. High-grade stainless steel designs (EN 1.4408) for T>40°C and chemical fluids. Use special seals (Super Duplex) and sealants for aggressive media.

Type-universal inspection/maintenance points for pumps (Grundfos Marine, Mega-swarm 2026-06). Per-model specs not auto-filled.

• Mechanical seal leakage from misalignment after motor service
• Bearing wear from vibration coupled through pipework
• Impeller corrosion/erosion in seawater service after 10+ years
• Casing wear ring clearance increase

• Casing flange gasket leakage at high pressure
• Mechanical seal failure under cavitation conditions
• Bearing housing leakage in vertically-mounted units
• Impeller cavitation erosion at insufficient NPSH

• Mechanical seal leakage in seawater service
• Bearing wear from vibration
• Impeller wear after 8-10 years
• Coupling alignment loss

• Loss of suction from empty source tank, closed valve, blocked strainer, air ingress, or poor priming causes low discharge pressure, cavitation noise, or no flow
• Seal or packing wear caused by ageing, dry running, shaft movement, or contamination produces visible leakage or loss of suction
• Bearing, coupling, gear, rotor, screw, impeller, or stator wear from poor lubrication, misalignment, debris, or normal service causes vibration, noise, heat, or reduced capacity
• Internal wear, erosion, or excessive clearances caused by abrasive or corrosive media reduces discharge pressure and increases recirculation or running time
• Motor, hydraulic drive, protection, or control faults caused by overload, electrical failure, or actuator problems result in trips, failed starting, or unstable speed

• Loss of suction from empty source tank, closed valve, blocked strainer, air ingress, or poor priming causes low discharge pressure, cavitation noise, or no flow
• Seal or packing wear caused by ageing, dry running, shaft movement, or contamination produces visible leakage or loss of suction
• Bearing, coupling, gear, rotor, screw, impeller, or stator wear from poor lubrication, misalignment, debris, or normal service causes vibration, noise, heat, or reduced capacity
• Internal wear, erosion, or excessive clearances caused by abrasive or corrosive media reduces discharge pressure and increases recirculation or running time
• Motor, hydraulic drive, protection, or control faults caused by overload, electrical failure, or actuator problems result in trips, failed starting, or unstable speed

• Loss of suction from empty source tank, closed valve, blocked strainer, air ingress, or poor priming causes low discharge pressure, cavitation noise, or no flow
• Seal or packing wear caused by ageing, dry running, shaft movement, or contamination produces visible leakage or loss of suction
• Bearing, coupling, gear, rotor, screw, impeller, or stator wear from poor lubrication, misalignment, debris, or normal service causes vibration, noise, heat, or reduced capacity
• Internal wear, erosion, or excessive clearances caused by abrasive or corrosive media reduces discharge pressure and increases recirculation or running time
• Motor, hydraulic drive, protection, or control faults caused by overload, electrical failure, or actuator problems result in trips, failed starting, or unstable speed

• Cavitation caused by insufficient suction head, blocked strainers or excessive suction losses, resulting in crackling noise, vibration and reduced delivery
• Mechanical-seal or gland leakage caused by wear, misalignment or damaged sealing faces, resulting in visible leakage around the shaft
• Bearing deterioration caused by poor lubrication, contamination or misalignment, resulting in increased noise, vibration or bearing temperature
• Impeller or casing erosion and fouling caused by abrasive solids, corrosion or deposits, resulting in reduced capacity and efficiency
• Coupling or drive problems caused by misalignment, looseness or motor faults, resulting in vibration, abnormal current draw or failure to reach normal speed

• Cavitation caused by insufficient suction head, blocked strainers or excessive suction losses, resulting in crackling noise, vibration and reduced delivery
• Mechanical-seal or gland leakage caused by wear, misalignment or damaged sealing faces, resulting in visible leakage around the shaft
• Bearing deterioration caused by poor lubrication, contamination or misalignment, resulting in increased noise, vibration or bearing temperature
• Impeller or casing erosion and fouling caused by abrasive solids, corrosion or deposits, resulting in reduced capacity and efficiency
• Coupling or drive problems caused by misalignment, looseness or motor faults, resulting in vibration, abnormal current draw or failure to reach normal speed

• Cavitation caused by insufficient suction head, blocked strainers or excessive suction losses, resulting in crackling noise, vibration and reduced delivery
• Mechanical-seal or gland leakage caused by wear, misalignment or damaged sealing faces, resulting in visible leakage around the shaft
• Bearing deterioration caused by poor lubrication, contamination or misalignment, resulting in increased noise, vibration or bearing temperature
• Impeller or casing erosion and fouling caused by abrasive solids, corrosion or deposits, resulting in reduced capacity and efficiency
• Coupling or drive problems caused by misalignment, looseness or motor faults, resulting in vibration, abnormal current draw or failure to reach normal speed

• Cavitation caused by insufficient suction head, blocked strainers or excessive suction losses, resulting in crackling noise, vibration and reduced delivery
• Mechanical-seal or gland leakage caused by wear, misalignment or damaged sealing faces, resulting in visible leakage around the shaft
• Bearing deterioration caused by poor lubrication, contamination or misalignment, resulting in increased noise, vibration or bearing temperature
• Impeller or casing erosion and fouling caused by abrasive solids, corrosion or deposits, resulting in reduced capacity and efficiency
• Coupling or drive problems caused by misalignment, looseness or motor faults, resulting in vibration, abnormal current draw or failure to reach normal speed

• Cavitation caused by insufficient suction head, blocked strainers or excessive suction losses, resulting in crackling noise, vibration and reduced delivery
• Mechanical-seal or gland leakage caused by wear, misalignment or damaged sealing faces, resulting in visible leakage around the shaft
• Bearing deterioration caused by poor lubrication, contamination or misalignment, resulting in increased noise, vibration or bearing temperature
• Impeller or casing erosion and fouling caused by abrasive solids, corrosion or deposits, resulting in reduced capacity and efficiency
• Coupling or drive problems caused by misalignment, looseness or motor faults, resulting in vibration, abnormal current draw or failure to reach normal speed

• Cavitation caused by insufficient suction head, blocked strainers or excessive suction losses, resulting in crackling noise, vibration and reduced delivery
• Mechanical-seal or gland leakage caused by wear, misalignment or damaged sealing faces, resulting in visible leakage around the shaft
• Bearing deterioration caused by poor lubrication, contamination or misalignment, resulting in increased noise, vibration or bearing temperature
• Impeller or casing erosion and fouling caused by abrasive solids, corrosion or deposits, resulting in reduced capacity and efficiency
• Coupling or drive problems caused by misalignment, looseness or motor faults, resulting in vibration, abnormal current draw or failure to reach normal speed

• Cavitation caused by insufficient suction head, blocked strainers or excessive suction losses, resulting in crackling noise, vibration and reduced delivery
• Mechanical-seal or gland leakage caused by wear, misalignment or damaged sealing faces, resulting in visible leakage around the shaft
• Bearing deterioration caused by poor lubrication, contamination or misalignment, resulting in increased noise, vibration or bearing temperature
• Impeller or casing erosion and fouling caused by abrasive solids, corrosion or deposits, resulting in reduced capacity and efficiency
• Coupling or drive problems caused by misalignment, looseness or motor faults, resulting in vibration, abnormal current draw or failure to reach normal speed

• Cavitation caused by insufficient suction head, blocked strainers or excessive suction losses, resulting in crackling noise, vibration and reduced delivery
• Mechanical-seal or gland leakage caused by wear, misalignment or damaged sealing faces, resulting in visible leakage around the shaft
• Bearing deterioration caused by poor lubrication, contamination or misalignment, resulting in increased noise, vibration or bearing temperature
• Impeller or casing erosion and fouling caused by abrasive solids, corrosion or deposits, resulting in reduced capacity and efficiency
• Coupling or drive problems caused by misalignment, looseness or motor faults, resulting in vibration, abnormal current draw or failure to reach normal speed

• Cavitation caused by insufficient suction head, blocked strainers or excessive suction losses, resulting in crackling noise, vibration and reduced delivery
• Mechanical-seal or gland leakage caused by wear, misalignment or damaged sealing faces, resulting in visible leakage around the shaft
• Bearing deterioration caused by poor lubrication, contamination or misalignment, resulting in increased noise, vibration or bearing temperature
• Impeller or casing erosion and fouling caused by abrasive solids, corrosion or deposits, resulting in reduced capacity and efficiency
• Coupling or drive problems caused by misalignment, looseness or motor faults, resulting in vibration, abnormal current draw or failure to reach normal speed

• Cavitation caused by insufficient suction head, blocked strainers or excessive suction losses, resulting in crackling noise, vibration and reduced delivery
• Mechanical-seal or gland leakage caused by wear, misalignment or damaged sealing faces, resulting in visible leakage around the shaft
• Bearing deterioration caused by poor lubrication, contamination or misalignment, resulting in increased noise, vibration or bearing temperature
• Impeller or casing erosion and fouling caused by abrasive solids, corrosion or deposits, resulting in reduced capacity and efficiency
• Coupling or drive problems caused by misalignment, looseness or motor faults, resulting in vibration, abnormal current draw or failure to reach normal speed

• Mechanical seal or packing leakage from wear or dry running, typically indicated by visible leakage or loss of suction
• Cavitation from restricted suction, air ingress or insufficient NPSH, typically indicated by rattling noise, vibration and reduced flow
• Impeller wear/fouling or internal clearance increase, typically indicated by reduced capacity or pressure
• Bearing or coupling wear, typically indicated by vibration, noise or overheating
• Motor/drive or control fault, typically indicated by failure to start, high current or protective trip

• Mechanical seal or packing leakage from wear or dry running, typically indicated by visible leakage or loss of suction
• Cavitation from restricted suction, air ingress or insufficient NPSH, typically indicated by rattling noise, vibration and reduced flow
• Impeller wear/fouling or internal clearance increase, typically indicated by reduced capacity or pressure
• Bearing or coupling wear, typically indicated by vibration, noise or overheating
• Motor/drive or control fault, typically indicated by failure to start, high current or protective trip

• Mechanical seal or packing leakage from wear or dry running, typically indicated by visible leakage or loss of suction
• Cavitation from restricted suction, air ingress or insufficient NPSH, typically indicated by rattling noise, vibration and reduced flow
• Impeller wear/fouling or internal clearance increase, typically indicated by reduced capacity or pressure
• Bearing or coupling wear, typically indicated by vibration, noise or overheating
• Motor/drive or control fault, typically indicated by failure to start, high current or protective trip

• Mechanical seal or packing leakage from wear or dry running, typically indicated by visible leakage or loss of suction
• Cavitation from restricted suction, air ingress or insufficient NPSH, typically indicated by rattling noise, vibration and reduced flow
• Impeller wear/fouling or internal clearance increase, typically indicated by reduced capacity or pressure
• Bearing or coupling wear, typically indicated by vibration, noise or overheating
• Motor/drive or control fault, typically indicated by failure to start, high current or protective trip

• Mechanical seal or packing leakage from wear or dry running, typically indicated by visible leakage or loss of suction
• Cavitation from restricted suction, air ingress or insufficient NPSH, typically indicated by rattling noise, vibration and reduced flow
• Impeller wear/fouling or internal clearance increase, typically indicated by reduced capacity or pressure
• Bearing or coupling wear, typically indicated by vibration, noise or overheating
• Motor/drive or control fault, typically indicated by failure to start, high current or protective trip

• Mechanical seal or packing leakage from wear or dry running, typically indicated by visible leakage or loss of suction
• Cavitation from restricted suction, air ingress or insufficient NPSH, typically indicated by rattling noise, vibration and reduced flow
• Impeller wear/fouling or internal clearance increase, typically indicated by reduced capacity or pressure
• Bearing or coupling wear, typically indicated by vibration, noise or overheating
• Motor/drive or control fault, typically indicated by failure to start, high current or protective trip

• Mechanical seal or packing leakage from wear or dry running, typically indicated by visible leakage or loss of suction
• Cavitation from restricted suction, air ingress or insufficient NPSH, typically indicated by rattling noise, vibration and reduced flow
• Impeller wear/fouling or internal clearance increase, typically indicated by reduced capacity or pressure
• Bearing or coupling wear, typically indicated by vibration, noise or overheating
• Motor/drive or control fault, typically indicated by failure to start, high current or protective trip

• Mechanical seal or packing leakage from wear or dry running, typically indicated by visible leakage or loss of suction
• Cavitation from restricted suction, air ingress or insufficient NPSH, typically indicated by rattling noise, vibration and reduced flow
• Impeller wear/fouling or internal clearance increase, typically indicated by reduced capacity or pressure
• Bearing or coupling wear, typically indicated by vibration, noise or overheating
• Motor/drive or control fault, typically indicated by failure to start, high current or protective trip

• Mechanical seal or packing leakage from wear or dry running, typically indicated by visible leakage or loss of suction
• Cavitation from restricted suction, air ingress or insufficient NPSH, typically indicated by rattling noise, vibration and reduced flow
• Impeller wear/fouling or internal clearance increase, typically indicated by reduced capacity or pressure
• Bearing or coupling wear, typically indicated by vibration, noise or overheating
• Motor/drive or control fault, typically indicated by failure to start, high current or protective trip

• Mechanical seal or packing leakage from wear or dry running, typically indicated by visible leakage or loss of suction
• Cavitation from restricted suction, air ingress or insufficient NPSH, typically indicated by rattling noise, vibration and reduced flow
• Impeller wear/fouling or internal clearance increase, typically indicated by reduced capacity or pressure
• Bearing or coupling wear, typically indicated by vibration, noise or overheating
• Motor/drive or control fault, typically indicated by failure to start, high current or protective trip

• Mechanical seal or packing leakage from wear or dry running, typically indicated by visible leakage or loss of suction
• Cavitation from restricted suction, air ingress or insufficient NPSH, typically indicated by rattling noise, vibration and reduced flow
• Impeller wear/fouling or internal clearance increase, typically indicated by reduced capacity or pressure
• Bearing or coupling wear, typically indicated by vibration, noise or overheating
• Motor/drive or control fault, typically indicated by failure to start, high current or protective trip

• Mechanical seal or packing leakage from wear or dry running, typically indicated by visible leakage or loss of suction
• Cavitation from restricted suction, air ingress or insufficient NPSH, typically indicated by rattling noise, vibration and reduced flow
• Impeller wear/fouling or internal clearance increase, typically indicated by reduced capacity or pressure
• Bearing or coupling wear, typically indicated by vibration, noise or overheating
• Motor/drive or control fault, typically indicated by failure to start, high current or protective trip

• Mechanical seal or packing leakage from wear or dry running, typically indicated by visible leakage or loss of suction
• Cavitation from restricted suction, air ingress or insufficient NPSH, typically indicated by rattling noise, vibration and reduced flow
• Impeller wear/fouling or internal clearance increase, typically indicated by reduced capacity or pressure
• Bearing or coupling wear, typically indicated by vibration, noise or overheating
• Motor/drive or control fault, typically indicated by failure to start, high current or protective trip

• Mechanical seal or packing leakage from wear or dry running, typically indicated by visible leakage or loss of suction
• Cavitation from restricted suction, air ingress or insufficient NPSH, typically indicated by rattling noise, vibration and reduced flow
• Impeller wear/fouling or internal clearance increase, typically indicated by reduced capacity or pressure
• Bearing or coupling wear, typically indicated by vibration, noise or overheating
• Motor/drive or control fault, typically indicated by failure to start, high current or protective trip