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4. Lead the free end of the drain hose
4
through the hole in the floor pan and into the receptacle.
5. Remove the protective cap from the oil drain valve
5
.
6. Screw the drain hose with quick-release coupling onto the oil drain valve.
The valve opens and oil drains through the hose.
7. When all the oil has drained out, uncouple and remove the drain hose.
8. Replace the protective cap on the oil drain valve.
9. Replace the plug in the filler port.
10. Close the door.
Draining the engine oil (stationary machine):
Compressor cooling oil and engine coolant drain lines are led to a central point outside the ma‐
chine on stationary machines. The engine oil is drained via a hose line which is screwed into the
drain opening of the engine block and closed with a shut-off valve. The hose is sealed with a
screwed sealing plug at the drain end.
Fig. 53 Draining the engine oil (stationary machine)
1
Screw plug
2
Engine oil drain
3
Shut-off valve (ball valve)
I - open
0 - closed
4
Oil filler neck cover, engine oil
5
Engine oil sump
1. Open the left-hand door.
2. Remove the oil filler cover.
3. Place the oil receptacle below the drain point.
4. Unscrew the filler plug
1
at the oil drain.
5. Open the shut-off valve
3
at the engine's oil pan and catch the engine oil.
6. Close the shut-off valve and replace the screwed sealing cap.
7. Replace the plug in the filler port.
8. Close the door.
10 Maintenance
10.4 Drive engine maintenance
136
Operator Manual Portable Rotary Screw Compressor
MOBILAIR M82 SIGMA CONTROL SMART
No.: 901783 08 USE
Option rw, rx