Fig. 60 Changing the oil filter
1
Fuel tank
2
Engine
3
Direction of rotation to unscrew the filter
4
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.
Top up if the level is too low.
8. Switch the «battery isolating switch» on.
9. Close the access 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 Checking the drive belts
The life of the drive belts is influenced by belt tension.
■ Slack belts can slip and become damaged.
■ Over-tight belts stretch and fatigue quicker. Over-tight belts also place unnecessary stress on
bearings and shorten their life.
Material V-belt tension measuring device
Spares
Precondition The machine is shut down.
The machine is fully vented, the pressure gauge reads 0 bar.
Machine cooled down.
All compressed air consumers are disconnected and the air outlet valves are open.
The «battery isolating switch» is off.
10 Maintenance
10.4 Engine
118
Service Manual Screw Compressor
M135 SIGMA CONTROL MOBIL
No.: 9_6975 00 E
