Fig. 26 Checking the cooling oil level
1 Oil level minimum
2 Oil level maximum
3 Oil level optimum
1. CAUTION!
Danger of burning - hot surfaces!
➤ Wear long-sleeved clothing and protective gloves.
2. Check the cooling oil level with machine running under LOAD.
Result As soon as the minimum level is reached: Top up the cooling oil.
10.14 Venting the machine (de-pressurising)
Venting takes place in three stages:
■ Isolate the compressor from the air system.
■ Vent the oil separator tank.
■ Manually vent the air cooler.
The machine must be isolated from the compressed air network and completely vented be‐
fore undertaking any work on the pressure system.
Material The hose coupling, shut-off valve and maintenance hose required for venting lie beneath the oil
separator tank.
Precondition Cut-off the electrical power supply via the power supply isolating device,
ensure that the device is locked off,
verify the absence of any voltage.
CAUTION
Escaping oil mist is damaging to health.
➤ Do not direct the maintenance hose at persons while venting.
➤ Do not inhale the oil mist.
10 Maintenance
10.14 Venting the machine (de-pressurising)
70
Operating Manual Screw Compressor
ASK 901824 12 E
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