FAULT FINDING
36
7/71, 12/56
FAULT CAUSE REMEDY
Safety valve
operates.
Operating
pressure too
high.
Check the setting and operation of
the regulator valve piping.
Incorrect
setting of the
regulator.
Adjust the regulator.
Faulty
regulator.
Replace the regulator.
Inlet valve set
incorrectly.
Refer to SPEED AND PRESSURE
REGULATION ADJUSTMENT in
the MAINTENANCE section of this
manual.
Loose
pipe/hose
connections.
Check all pipe/hose connections.
Faulty safety
valve.
Check the relieving pressure.
Replace the safety valve if faulty.
DO NOT ATTEMPT A REPAIR.
FAULT CAUSE REMEDY
Oil is forced
back into the
air filter.
Incorrect
stopping
procedure
used
Always employ the correct
stopping procedure. Close the
discharge valve and allow the
machine to run on idle before
stopping.
Faulty inlet
valve.
Check for free operation of the inlet
valve(s).
Faulty
discharge
check valve.
Remove the valve from the
discharge pipe and check the
operation.
Machine
goes to full
pressure
when
started.
Inlet valve set
incorrectly.
Refer to SPEED AND PRESSURE
REGULATION ADJUSTMENT in
the MAINTENANCE section of this
manual.
Machine fails
to load when
the load
button is
pressed.
Faulty load
solenoid.
Replace the solenoid. Check the
electrical circuit by feeling for
movement whilst depressing the
load button.
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