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8. Compressor capacity or pressure
below normal.
Air consumption exceeds capacity of the compressor. Check equipment connected.
9. Overheating; alarm lamp goes on. a. Insufficient compressor cooling.
b. Oil / coolant cooler clogged externally.
a. Relocate compressor.
b. Clean cooler; see section Cleaning coolers.
10. Engine keeps running at maximum
speed when closing the air outlet
valves; safety valve blows.
Consult authorized technician/Atlas Copco.
11. Working pressure rises during
operation and causes safety valve to
blow.
Consult authorized technician/Atlas Copco.
12. Oil mist being discharged from air
outlet valve(s).
Consult authorized technician/Atlas Copco.
13. Compressor shuts down without
apparent cause.
Consult authorized technician/Atlas Copco.
14. Air and oil mist expelled from air filter
after stopping.
Consult authorized technician/Atlas Copco.
15. No air output. Consult authorized technician/Atlas Copco.
Generator (option)
16. No voltage at sockets. a. Generator not switched on.
b. Circuit breakers are off.
a. Switch generator on.
b. Switch on circuit breakers.
17. When an electrical device is
connected, the circuit breakers switch
off.
a. Electrical device is defective. a. Have electrical device replaced or repaired.
18. Circuit breakers are off. a. Short circuit or overload. a. Remedy fault. Switch on circuit breakers.
19. Green lamp H3 is deactivated. a. Circuit breakers are off.
b. Serious electrical fault.
a. Switch on circuit breakers.
b. Consult Atlas Copco.
Problem Possible faults Corrective actions
Box_2-2.book Page 38 Friday, October 27, 2017 3:48 PM
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