Maintenance
10 --- 65
Manually venting the compressed air cooler
With the shut---off valve closed, insert the male hose fitting (6) into the hose coupl-
ing (1).
Open the shut---off valve (7) slowly to release pressure.
Withdraw the male hose fitting and close the shut---off valve.
10.12 Checking and Topping up the Cooling Oil
10.12.1 Check cooling oil level.
Pre---condition: Machine has been running at least five minutes under load.
(minimum 50 Hz for machines under frequency control).
Danger of burning from hot surfaces!
Skin burns are possible.
Wear long---arm garments and protective gloves.
Work carefully.
Fig. 28 Check cooling oil level.
2 Oil separator tank min Minimum oil level
3 Oil level indicator OK Oil level optimum
4 Indicator markings max Oil level maximum
5 Green zone
Readout oil level.
When the indicator shows minimum level, top up the oil.
10.12.2 Topping up the cooling oil
Material: Cooling oil
Pre---condition: Machine switched off
Mains isolator locked off
Machine cooled down.
CAUTION
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