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FAULT FINDING
41
9/215 9/230 9/255 9/300 10/170 12/170 12/235 17/235 21/215
HP600 VHP600 XP750 XP800 VHP825 XP900 XP1060 XHP760 XHP825
Air
discharge
Engine speed
too low.
Check the air cylinder and air
filter(s).
capacity too
low.
Blocked air
cleaner.
Check the restriction indicators and
replace the element(s) if
necessary.
High pressure
air escaping.
Check for leaks.
Incorrectly set
regulation
system.
Reset the regulation system. Refer
to SPEED AND PRESSURE
REGULATION ADJUSTMENT in
the MAINTENANCE section of this
manual.
Compressor
overheats.
Low oil level.
Top up the oil level and check for
leaks.
Dirty or
blocked oil
cooler.
Clean the oil cooler fins.
Incorrect
grade of oil.
Use Ingersoll–Rand
recommended oil.
Defective
by-pass valve.
Check the operation of the element
and replace if necessary.
Recirculation
of cooling air.
Move the machine to avoid
recirculation.
Reduced
cooling air
from fan.
Check the fan and the drive belts.
Check for any obstruction inside
the fan cowl.
Excessive oil
present in
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.
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.
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).
Machine
goes to full
pressure
when
Inlet valve set
incorrectly.
(17/235,
21/215)
Refer to SPEED AND PRESSURE
REGULATION ADJUSTMENT in
the MAINTENANCE section of this
manual. (17/235, 21/215)
started.
Faulty load
valve.
Replace the valve.
Machine fails
to load when
the load
button is
pressed.
Faulty load
valve.
Replace the valve.