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Maintenance
This chapter contains general technical information and instructions on how the prescribed maintenance items must be carried out. Read through the instructions carefully before starting work. The times when maintenance items must be carried are indicated in the Service Protocol Read through the safety precautions for maintenance and service in the Safety Information page 4 chapter before work on the engine is begun.
WARNING!
Care and maintenance work should be done with the engine stopped unless otherwise specified. Stop the engine before opening or removing the engine hatch/hood. Make it impossible to start the engine by removing the start key and cutting the system voltage with the main switches.
2 Turbocharger

3Crankcase ventilation filter
4Air filter
5Oil filler cap
6Engine control unit
7Alternator
8Compressor
9Water shut off valve, propulsion unit
10Oil filter, propulsion unit
11Expansion tank
12Sea water filter
13Fuel filter
14Aux stop
15Oil bypass filter
16Oil filter
17Charge air cooler
18Oil filler cap, propulsion unit
19Oil dipstick, propulsion unit
20Water shut off valve, propulsion unit
21Cooling water intake unit
22Oil dipstick, engine
23Sea water pump
Engine, General
General inspection
Make a habit of visually checking the engine and engine bay before starting, and after operations when you have stopped the engine. This will help you to discover abnormalities quickly, or if something is about to happen.
Look especially carefully for oil, fuel and coolant leakages, loose bolts, worn or poorly-tensioned drive belts, loose cable connections, damaged electrical cables and hoses. This inspection only takes a few minutes and can prevent serious malfunctions and expensive repairs.
WARNING!
Accumulations of fuel, oil and grease on the engine or in the engine room is a fire hazard and must be removed immediately they are detected.
WARNING!
Ifanoil,fuelorcoolantleakisdetected,thecausemust beinvestigatedandthefaultrectifiedbeforetheengine is started.
Never direct the jet from a high-pressure washer at seals, rubber hoses or electrical components. Never use the high pressure setting for engine cleaning.
Crankcase Ventilation, Filter Change
1Unscrew the cover and remove the old filter.
2Clean the filter cover/housing as necessary. Be careful to prevent contamination from entering the engine.
3Install the new filter.
4Screw the cover back in place.
IMPORTANT!
Scrap the old filter. They may not be cleaned.
Air Filter, Change
1Unscrewtheairfiltercoverandremovetheoldfilter.
2Clean the air filter cover/housing as necessary. Be careful to prevent contamination from entering the engine.
3Install the new filter and air filter cover.
IMPORTANT!
Scrap the old filter. They may not be cleaned.
Drive Belt, Check and Change
WARNING!
Stop the engine before doing any maintenance work.
General
Check belt tensions and condition regularly. A belt that is tensioned too tightly may damage bearings, while a belt too-loosely tensioned may slip.
Checkandadjustthebeltafteroperation,whilethebelt is still warm.
IMPORTANT!
Always replace a belt that appears worn or has cracks (belts that work in pairs shall always be changed together).
Adjusting/replacement of drive belts
The standard alternator and water pump are driven by a poly-V belt for the best function and lifespan. Replace/tension the belt as follows:
1Loosen the screws (1) on the tension roller bracket. Remove and replace the belt as required.
2Tension the belt by applying a torque to the tensioning roller square fitting (2) of 70 Nm (52 lbf.ft). Lock the tensioning roller using screws (1). The screws must be tightened to 50 Nm (37 lbf.ft).
3Repeat the procedure when the engine is warm: Loosen screws (1) and tension the belt.
Compressor, checking oil
Checking and filling
1 Unscrew and lift up the oil dipstick. Dry the oil off. Screw the oil dipstick down as far as it will go and then unscrew and lift up.
2Check that the oil level is between the MAX and MIN marks. Check that the dip stick is screwed fully home so that the reading is correct. If the dipstick is not screwed fully home, the oil level will be above the MIN mark even if the oil level is correct.
3Fill with oil as required, use the dipstick hole. Oil quantity and grade, see section Technical Data, Lubrication System
IMPORTANT!
The oil level shall be between the MAX and MIN marks on the dipstick.
Compressor, oil change
1Run the engine until it reaches normal operating temperature.
2Pull up the oil dipstick
3Remove the plug and let the oil run out.
4Replace the plug and fill with oil to the correct level.
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