Problem Solving - Quincy Compressor QGS 40 Instruction Book

8

Problem solving

Warning
Compressor
On compressors equipped with an AIRLOGIC² controller: if the alarm LED is lit or flashes, consult sections
Main screen and following.
- Condition
Compressor starts running, but
does not load after a delay time
- Condition
Compressor does not unload,
safety valve blows
80
Before carrying out any maintenance, repair work or adjustment, press the stop button,
wait until the compressor has stopped, press the emergency stop button and switch off
the voltage. Close the air outlet valve and lock it if necessary.
Depressurize the air connection between the minimum pressure valve and the compressor
outlet ball valve. Turn slowly the air vent plug (Fa) just one turn to permit any pressure in
the system to escape.
If provided, open the manual condensate drain valves. Depressurise the compressor by
opening the oil filler plug one turn.
For location of components, see sections:
Open and lock the isolating switch.
The operator must apply all relevant
Position of air vent plug
Fault
Solenoid valve out of order
Inlet valve stuck in closed position Have valve checked
Leak in control air flexibles
Minimum pressure valve leaking
(when net is depressurised)
Fault
Solenoid valve out of order
Inlet valve does not close
Introduction and
Safety precautions.
Remedy
Replace valve
Replace leaking flexible
Have valve checked
Remedy
Replace valve
Have valve checked
Instruction book
Initial start-up.
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