Coolers of water-cooled compressors
Keep the cooler block clean to maintain the cooling efficiency.
On air-cooled compressors proceed as follows:
Step Action
1 Take off the side panels of the compressor and remove the stays.
2 Open the two inside doors.
3 Remove any dirt form the coolers with a fibre brush, brush in the direction of the fins. Also
remove any dirt from the fans.
4 Clean the coolers with an air jet in the reverse direction to normal flow. Use low pressure
air; if necessary, the pressure may be increased up to 6 bar (e) (87 psig)
5 If it is necessary to clean the coolers with a cleaning agent, consult Atlas Copco.
6 Close the inside doors.
7 Reinstall the stays and side panels of the compressor.
On water-cooled compressors, consult the Atlas Copco Customer Centre if it is necessary to clean the coolers.
9.3 Safety valve
Warning
Stop the compressor and switch off the voltage. The operator must apply all relevant Safety
precautions.
Never run the compressor without safety valves.
No adjustments are allowed.
Testing
The valve can be tested on a separate compressed air line.
Instruction book
2920 1728 05 143
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