Liebherr Ram Luffing Knuckle Boom Cranes
Discover the RL-K series: a compact and versatile knuckle boom crane design for various industries. Enjoy high flexibility and advanced features like The unique design of the knuckle boom allows the RL-K to be used in many different industries. It benefits from its high flexibility during use combined with its compact and maintenance-friendly design. When it comes to maintenance concepts, LiMain also offers significant added value on this crane. The crane can also be equipped with a pipe handling equipment. Deep-sea applications are also possible with the Heavetronic. The RL-K 2600 was manufactured at our site in Rostock on the Baltic coast. The video shows the highlights of the crane on the test stand brought to you by our colleague Stefan Schneider. Take a look at what this compact crane can do! LiMain is a fully digital, remote and semi-automatic maintenance system, which saves investments and resources for the platform operator.
Components & Design
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Technical Data
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Common failures & inspection points
Visual daily inspection per ISO 4309:2017; caliper for diameter; magnetic inductive inspection (MRI) for suspected internal damage; inspection points: drum anchorage, loading, deflection over sheaves, loaded rope sections
Visual inspection for lubricant leakage; check seals for wear and contamination; vibration and temperature monitoring; overhaul by qualified Liebherr service with specialized equipment if needed
Drucktest (Pressure Test) gegen spezifizierte Solldrücke; Sichtprüfung auf Flüssigkeitsverluste; Ölprobenanalyse (Condition Monitoring); Funktionsprüfung aller Hubfunktionen (Heben, Schwenken, Luffing)
Visual surface inspection for surface cracks and deformation; NDT inspection (X-ray/MRI) at critical hooks for internal damage; load test: ~25% above rated load capacity; inspection of hook locking and wear marks
Surface rust and corrosion by visual inspection; NDT inspection (ultrasonic, X-ray) at critical welds; dimensional check of geometric tolerances; overhaul by Service Centre Steel with welding/structural analysis if required
Visual inspection of all electrical connections for corrosion in saltwater environment; functional test of overload protection and indicators; continuity test of critical circuits; lithium battery/accumulator condition check on electro-hydraulic systems
Type-general inspection and maintenance points for this equipment category — not model-specific.
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