Fig. 29 Checking the cooling oil level
1 Minimum oil level
2 Maximum oil level
3 Optimum level
➤ Check the oil level with machine running.
Result Top up when the indicator shows minimum level.
10.13 Venting the machine (depressurizing)
The machine must be isolated from the compressed air system and completely vented before
undertaking any work on the pressure system.
The oil circuit vents automatically as soon as the machine is stopped.
Venting takes place in three stages:
■ Isolate the compressor from the compressed air system.
■ Vent air from the oil separator tank.
■ Vent air manually from the air cooler.
Material The hose coupling, shut-off valve and maintenance hose lie beneath the oil separator tank.
Precondition The power supply disconnecting device is switched off
The disconnecting device is locked in the off position
A check has been made no voltage is present
WARNING
Compressed air!
Compressed air and devices under pressure can injure or cause death if the contained energy is
released suddenly or uncontrolled.
➤ Vent all pressurized components and chambers completely.
10 Maintenance
10.13 Venting the machine (depressurizing)
70
Service Manual Screw Compressor
ASD T Tri-Voltage 9_5721 06 USE
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