Main Engine 4-Stroke · Main Engines (4-Stroke)
The MAN 12VV32/40 is a 12‑cylinder V‑type medium‑speed marine diesel main engine delivering about 6 000 kW at 750 rpm, distinguished by its common‑rail fuel injection and two‑stage intercooling for high power density.
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| oil_change | 1000-1500 hours |
|---|---|
| fuel_filter_change | 250-500 hours |
| air_filter_change | 500-1000 hours |
| coolant_change | 2000-3000 hours |
| major_overhaul | 20000-30000 hours |
| cylinder_liner | 0.5-1.0 mm wear limit |
|---|---|
| piston_ring | 0.5-1.0 mm wear limit |
| crankshaft_bearing | 0.1-0.5 mm wear limit |
| camshaft_lobe | 0.1-0.5 mm wear limit |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Class surveyors typically check for compliance with regulatory requirements, including emissions and safety standards, and verify the condition and maintenance of critical systems and components.
Estimated lifetime: 30000-40000 hours
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