Fig. 55 Draining cooling oil
1 Oil separator tank
2 Oil separator tank drain plug
3 Oil filler plug
4 Oil cooler
5 Shut-off ball valve
I – open
0 – closed
6 Quick-release coupling
7 Drain hose with male coupling
➤ Remove the plug 3 from the oil separator tank filling port.
Draining the cooling oil from the separator tank:
The oil separator tank can be drained from a point accessible through a hole in the floor panel.
1.
Place the oil receptacle below the corresponding drain hole in the floor pan.
2. Unscrew the drain plug 2
and allow the cooling oil to drain into the receptacle.
3.
Fit a new gasket on the drain plug and screw it back in.
Draining the oil from the oil cooler
This is done from a drain valve with the aid of a separate drain hose.
1. Position a receptacle beneath the oil cooler drain point (accessible through a hole in the floor
panel).
2. Connect the drain hose 7
to the oil cooler quick-release coupling 6 .
3.
Lead the hose through the hole in the floor panel and into the receptacle, securing it in place.
4. Slowly open the shut-off valve 5
and catch the draining cooling oil.
5.
Close the shut-off valve and remove the drain hose.
Finish off the work steps:
1. Replace the plug in the oil separator tank filling port.
2. Close the doors.
Dispose of used oil and oil-contaminated working materials according to environmental pro‐
tection regulations.
Further information See chapter 10.4.2 for oil filling.
10 Maintenance
10.4 Compressor Maintenance
No.: 9_6974 20 E
Service manual Portable compressor
M122
113
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