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Fig. 70 Oil separator tank dirt trap maintenance
1
Oil separator tank cover
2
Control valve
3
Union nut
4
Oil scavenge tube
A
Detail of the oil return line dirt trap
5
Strainer
6
Sealing ring
7
Screw-in connector
8
Nozzle
B
Detail of the proportional controller dirt trap
9
Screw plug
10
O-ring
11
Strainer
➤ Open the left-hand door.
10.5.5.1 Oil return line dirt trap maintenance
See Fig. 70; detail: A for the component positions.
1. Undo the union nut
3
and bend the oil return line
4
to one side.
2. Unscrew the screw-in connector
7
.
3. Unscrew the strainer
5
from the screw-in connector.
4. Use a screwdriver to unscrew the nozzle
8
from the screw-in connector.
5. Clean the housing, strainer and sealing ring
6
with cleaning solvent or spirit.
6. Check the nozzle, strainer and sealing ring for wear.
When clearly worn: replace components.
7. Fit the nozzle and strainer to the screw-in connector.
8. Screw in the connector making sure the sealing ring seats properly.
9. Refit the oil scavenge line.
10.5.5.2 Maintenance of the proportional controller dirt trap
See Fig. 70; detail: B for the component positions.
1. Unscrew the plug
9
and remove the strainer
11
.
2. Clean the plug, strainer and O-ring
10
with cleaning solvent or spirit.
3. Check the strainer and O-ring for wear.
When clearly worn: replace components.
4. Place the strainer on the screw plug.
5. Screw in the plug making sure the O-ring seats properly.
10 Maintenance
10.5 Compressor
132
Service Manual Screw Compressor
M170 SIGMA CONTROL MOBIL
No.: 9_9425 01 E