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MAN Generator (PrimeServ)

9-L28/32H GenSet

Auxiliary Engine (Generator Set) · Auxiliary Engines

Technical data from manufacturer or class sources · not yet verified by a person​‍​⁠​‌‌‍‍‍‍‌⁠​⁠​​⁠⁠​
9Cylinders
280 mmBore
320 mmStroke

MAN Generator (PrimeServ) 9-L28/32H GenSet — Mechanical, 9 cyl × 280mm bore, MGO/HFO.

Specifications

Technical data.reference — unverified

Do you have the manufacturer datasheet for this model? Send it with the enquiry form — we check it and name the source.

Engine output (L28/32H GenSet)1890 kW at 720 rpm (60 Hz); 1980 kW at 750 rpm (50 Hz)
ConfigurationL
Fuel TypeMGO/HFO
TechnologyMechanical
Inspection

Inspector Detail ✓ verified

Common issues

  • Cylinder liner wear and scoring
  • Piston ring and skirt wear
  • Fuel injection system clogging and nozzle wear
  • Lubricating oil contamination and degradation
  • Cooling system leaks and corrosion
  • Exhaust valve seat wear and overheating
  • Turbocharger fouling and vibration

Inspection checklist

  • Cylinder head and valve condition
  • Piston and ring condition
  • Crankshaft and bearing condition
  • Fuel injection system and nozzle condition
  • Lubricating oil condition and level
  • Cooling system condition and leaks
  • Exhaust system condition and temperature
  • Turbocharger condition and vibration
  • Generator and electrical system condition

Service intervals

oil_change1000-1500 hours
fuel_filter_change500-1000 hours
air_filter_change1000-2000 hours
coolant_change2000-4000 hours
major_overhaul20000-30000 hours

Typical wear limits

cylinder_liner0.5-1.0 mm wear
piston_ring0.5-1.5 mm wear
crankshaft_bearing0.1-0.5 mm wear
fuel_injection_nozzle0.1-0.5 mm wear

Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.

Critical spares

  • Cylinder liners
  • Piston rings and skirts
  • Fuel injection nozzles
  • Lubricating oil filters
  • Cooling system hoses and gaskets
  • Exhaust valve seats and guides
  • Turbocharger blades and bearings

Safety

  • High-pressure fuel system leaks and fires
  • Electrical system shock and arc flash hazards
  • Rotating machinery and entanglement hazards
  • Hot surfaces and burn hazards
  • Noise and vibration exposure

Class survey

The class surveyor will typically check the condition and maintenance records of the engine, generator, and electrical system, as well as verify compliance with regulatory requirements and classification society rules.

Estimated lifetime: 25000-35000 hours

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