Fig. 61 Changing the oil filter
1
Engine
2
Direction of rotation to unscrew the filter
3
Chain wrench
1. Open the right-hand access door.
2. Prepare a receptacle.
3. Loosen the filter with the chain wrench and screw off. Catch any escaping oil.
4. Carefully clean sealing surfaces using lint-free cloth.
5. Lightly oil the new filter's gasket.
6. Turn the oil filter clockwise by hand to tighten.
7. Check the engine oil level.
Low oil level: Replenish engine oil.
8. Activate the «battery isolating switch».
9. Close the door.
Further information The engine service manual gives further information on oil filter changing.
Dispose of old oil filters, old oil and materials contaminated with oil according to environmental
protection regulations.
10.4.8 Maintaining the drive belt
The life of the drive belts is affected by the belt tension.
■ Slack belts can slip and become damaged and may result in engine overheating.
■ Over-tight belts stretch and wear quicker. Over-tight belts also place unnecessary stress on
bearings and shorten their life.
10 Maintenance
10.4 Engine
118
Service Manual Screw Compressor
M170 SIGMA CONTROL MOBIL
No.: 9_9425 01 E
