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TROUBLE
No Shut-off
Premature Shut-off
Low Torque
Low RPM's
Recommended Preventative Maintenance:
It is recommended that after every 200,000 pulsing seconds or 180 days, the fluid in the tool's pulse unit be
changed. At such time, it is also recommended to grease the bearings in the air motor. If the presence of water is
noted, it is recommended that a small amount of oil be run through the air motor to wash out any rust residue in
the air motor.
It is also recommended that after every 400,000 pulsing seconds or 365 days, that a Pulse Unit Repair Kit be
installed in the pulse unit. This also allows the inspection of hard parts in the pulse unit.
UAT Series Troubleshooting
Troubleshooting
CAUSE
Low Air Pressure
Low Oil in the Pulse Unit
Air Motor Dry; No Lubrication
Loss of Power in the Air Motor
Shut-off Valve Ball Pushed into
Spring
Too Much Oil in the Pulse
Spring between the Pulse Unit
and the Air Motor Weak or
Missing
Spacer between the Pulse Unit
and the Air Motor Missing
Too Much Air Pressure
Air Motor Dry; No Lubrication
Loss of Power in the Air Motor
Spring between the Pulse Unit
and the Air Motor Weak or
Missing
Low Oil in the Pulse Unit
Exhaust Filter Dirty
Air Motor Dry; No Lubrication
Loss of Power in the Air Motor
– 15 –
SOLUTION
Make sure that you have 85 PSI
at the tool while running the tool.
Add .10cc of oil and/or re-tank the
Pulse Unit.
Lubricate the Air Motor.
Reset the Air Motor.
Reset the Ball in the Shut-off
Valve Bushing.
Remove .10cc of oil from the
Pulse Unit.
Replace Spring with new one or
with a stronger one.
Replace the Spacer. The Pulse
Unit should only move .20mm in
the Casing.
Air Pressure should be 85 PSI
Dynamic.
Lubricate the Air Motor.
Reset the Air Motor.
Replace Spring with new one or
with a stronger one.
Add .10cc of oil and/or re-tank the
Pulse Unit.
Replace the Filter in the Silencer.
Lubricate the Air Motor.
Reset the Air Motor.
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