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troubleshooting
problem
Decreased output. 1. Not enough air pressure and/
or air flow.
2. Obstructed Throttle.
3. Incorrect lubrication or
not enough lubrication.
4. Blocked air inlet screen
(if equipped).
5. Air leaking from loose housing.
6. Mechanism contaminated.
Housing heats
1. Incorrect lubrication or
during use.
not enough lubrication.
2. Worn parts.
Severe air leakage.
1. Cross-threaded housing
(Slight air leakage
components.
is normal,
especially on
2. Loose housing.
older tools.)
3. Damaged valve or housing.
4. Dirty, worn or damaged valve.
Follow all safety precautions whenever diagnosing or servicing the tool.
Disconnect air supply before service.
Item 91753
possible causes
For technical questions, please call 1-800-444-3353.
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 Throttle 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.
1. Lubricate using air tool oil and grease
according to directions.
2. Have qualified technician inspect internal
mechanism and replace parts as needed.
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.
3. Replace damaged components.
4. Clean or replace valve assembly.
Page 13
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