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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. Open the left-hand door.
9. Turn on the «battery isolating switch».
10. Close the doors.
Dispose of old oil filter, old oil and materials contaminated with oil according to environmental
protection regulations.
10.4.8 Engine belt maintenance
The engine is fitted with two belts. The larger belt (I) drives the coolant pump and the alternator.
The other belt (II) serves the fan drive.
Defective engine belts may tear. A torn engine belt no longer drives the coolant pump and the al‐
ternator or the fan. The engine may overheat and be damaged.
Material Wrench
Pliers
Spare part
Precondition The machine is switched off.
The machine is fully vented, the pressure gauge reads 0 psig.
The machine has cooled down.
All compressed air consumers are disconnected and the air outlet valves are open.
The «battery isolating switch» is turned off.
Beware of rotating pulleys and moving belts.
There is danger of serious injury from pinching.
➤ Never check the drive belt unless the engine is at standstill.
➤ Never run the machine without a belt guard.
➤ Open both doors.
10 Maintenance
10.4 Engine maintenance
No.: 901765 05 USE
Operator Manual Screw Compressor
M114 SIGMA CONTROL SMART
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