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PROBLEM
The tool runs at normal
speed, but loses power
under load.
The tool runs slowly. The
air flows slightly from the
exhaust.
The tool will not run. The
air flows freely from the
exhaust.
The tool will not shut off.
TROUBLESHOOTING
The following chart lists common operating system issues and solutions. Please read
it carefully, and follow all instructions closely.
WARNING: If any of the following symptoms appears while the tool is in use, turn it off
and disconnect it from the air supply immediately. Failure to follow this warning may result
in serious personal injury.
Disconnect the tool from the air supply before making any adjustments.
Repairs must be performed by a qualified service technician.
PROBABLE CAUSE
Motor parts are worn.
The cam clutch is worn or
sticking due to insufficient
lubrication.
Dirt particles have gotten
jammed in the motor.
The power regulator is in
the closed position.
The air flow is blocked by
dirt.
The compressor is not
strong enough to operate
the tool.
One or more of the motor
vanes is stuck due to
material build-up.
The throttle valve O-rings
have dislodged from the
seat in the inlet valve.
CORRECTIVE ACTION
Lubricate the clutch housing.
Check for excess clutch oil. Clutch cases should only be
filled halfway. Overfilling may cause drag on high-speed
clutch parts. A typical oiled/lubricated air tool requires
1⁄2 oz (15 ml) of oil.
GREASE/LUBRICATION NOTE: Heat usually indicates
insufficient grease in the chamber. Harsh operating
conditions may require more frequent lubrication.
Check the air inlet filter for blockage.
Pour air tool lubricating oil into the air inlet, as per
instructions.
Operate the tool in short bursts, quickly reversing
rotation back and forth, where applicable.
Repeat the previous steps as needed.
Use the tool with a more powerful compressor.
Pour air tool lubricating oil into the air inlet.
Operate the tool in short bursts, quickly reversing
rotation back and forth, where applicable.
ap the motor housing gently with a plastic mallet.
Disconnect the air drill from the air supply. Free the
motor by rotating the drive shank manually, where
applicable
Replace the O-rings.
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