Page 11For technical questions, please call 1-800-444-3353.Impact Wrenches
Troubleshooting
Problem Possible Causes Likely Solutions
Decreased output. 1. Not enough air pressure and/
or air ow.
2. Obstructed trigger.
3. Incorrect lubrication or
not enough lubrication.
4. Blocked air inlet screen
(if equipped).
5. Air leaking from loose housing.
1. Check for loose connections and make sure that
air supply is providing enough air ow (CFM) at
required pressure (PSI) to the tool’s air inlet. NOTE:
This is especially important for Model 68429.
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..
Housing heats
during use.
Incorrect lubrication or not
enough lubrication.
Lubricate using air tool oil and grease according to directions.
Severe air leakage.
(Slight air leakage
is normal,
especially on
older tools.)
1. Cross-threaded housing
components.
2. Loose housing.
3. Damaged valve or housing.
4. Dirty, worn or damaged valve.
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.
Follow all safety precautions whenever diagnosing or servicing the tool.
Disconnect air supply before service.
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