Atlas Copco GA 75 VSD User Manual

• Remove the side baffle that encloses the fan compartment.
• Remove any dirt from the coolers with a fibre brush. Brush in the direction of the cooling fins.
Also remove any dirt from the fan with a fibre brush.
• Then clean 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).
• If it is necessary to wash the coolers with a cleaning agent, consult Atlas Copco.
• Remove the cover used during cleaning.
• Mount the side baffle that encloses the fan compartment.
On water-cooled compressors:
• Consult Atlas Copco about cleaning.
9.3 Safety valve
Location of safety valve
GA 75 VSD and GA 90 VSD
Operating
Operate the safety valve by unscrewing the cap one or two turns and retightening it.
Testing
Before removing the valve, depressurize the compressor. See section Problem solving.
Valve (SV) can be tested on a separate air line. If the valve does not open at the set pressure specified on the
valve, consult Atlas Copco.
Warning
No adjustments are allowed. Never run the compressor without safety valve.
Instruction book
2920 1634 04 97

Atlas Copco GA 75 VSD Specifications

General

Brand	Atlas Copco
Model	GA 75 VSD
Category	Air Compressor
Language	English