Step Action
8 Switch on the voltage.
Unlock the emergency stop button and reset the oil and oil filter service warnings.
9 Run the compressor for a few minutes.
10 Stop the compressor.
11 On ZR 110 up to ZR 275 and ZT 110 up to ZT 275, check that the oil level is in the
middle of sight-glass (SG) after stopping (at longer standstill the level may rise in the
sight-glass).
Top up, if necessary.
10.3 Safety valves
Testing
The valves can be tested on a separate compressed air line. If a valve does not open at the pressure
specified in Settings of safety valves, consult Atlas Copco.
Never run the compressor without safety valves.
No adjustments are allowed.
10.4 Coolers
Testing
The coolers must be serviced regularly; refer to Preventive maintenance schedule .
Never install damaged or clogged coolers.
Instruction book
2920 1815 04 289
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