Maintenance
10 --- 70
Have an oil container ready.
With the shut---off valve closed, insert the male hose fitting (6) into the hose coupling
(2).
Place the end of the maintenance hose in the oil container and secure it in place.
Open the shut---off valve (3).
Open the shut---off valve (7) slowly and allow oil and air to drain completely.
Check that the oil separator tank pressure gauge reads zero.
Close the shut---off valve (3) and unplug the hose.
10.13.3 Draining the oil from the airend:
Pre---condition: Machine fully vented (no pressure)
Pressure gauge on the oil separator tank indicates zero.
Fig. 32 Changing the cooling oil, airend
1 Airend discharge
2 Hose coupling (oil drain)
3 Shut---off valve
Have an oil container ready.
With the shut---off valve closed, insert the male hose fitting (6 in Fig. 31) into the hose
coupling (2).
Place the end of the maintenance hose in the oil container and secure it in place.
Open the shut---off valve (3) and (7. Fig. 31).
Fig. 33 Turning the coupling
1 Safety screen
2 Coupling
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