FAULT FINDING
47
7/20, P65
FAULT
CAUSE
REMEDY
Excessive oil
present in
the
Blocked
scavenge line.
Check the scavenge line, drop tube
and orifice. Clean and replace.
the
discharge
air.
Perforated
separator
element.
Replace the separator element.
Pressure in
the system is
too low.
Check the minimum pressure valve
or sonic orifice.
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.
