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TROUBLESHOOTING
Problem
Decreased
output.
Severe air
leakage.
(Slight air
leakage is
normal,especially
on older tools.)
Housing heats
during use.
Follow all safety precautions whenever diagnosing or servicing the tool.
Disconnect air supply before service.
Possible Causes
1. Not enough air
pressure and/ or air
flow.
2. Obstructed trigger.
3. Incorrect lubrication or
not enough lubrication.
4. Blocked air inlet screen
(if equipped).
5. Air leaking from loose
housing.
6. Mechanism
contaminated.
7. Vane wear or damage.
1. Cross-threaded
housing
components.
2. Loose housing.
3. Damaged valve or
housing.
4. Dirty, worn or damaged
valve.
1. Incorrect lubrication or
not enough lubrication.
2. Worn parts.
Likely Solutions
1. Check for loose connections and make sure
that air supply is providing enough air flow
(CFM) at required pressure (PSI) to the tool's
air inlet.
Do not exceed maximum air pressure.
2. Clean around trigger to ensure free
movement.
3. Lubricate using air tool oil and grease
according to directions.
4. Clean air inlet screen of buildup.
5. Make sure housing is properly assembled and
tight.
6. Have qualified technician clean and lubricate
mechanism. Install in-line filter in air supply as
stated in Setup: Air Supply.
7. Replace all vanes as set.
1. Check for incorrect alignment and uneven
gaps.
If cross-threaded, disassemble and replace
damaged parts before use.
2. Tighten housing assembly.
If housing cannot tighten properly, internal
parts may be misaligned. Technician needs to
disassemble tool, align parts and reassemble.
3. Replace damaged components.
4. Clean or replace valve assembly.
1. Lubricate using air tool oil and grease
according to directions.
2. Have qualified technician inspect internal
mechanism and replace parts as needed.
9
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