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4. Reconnect the air supply to the impact wrench and run for 20 to 30 seconds.
Lubricate the entire impact mechanism by rotating the tool upside down and sideways while
running the tool.
5. Remove the screw and hold the oil port hole over a suitable container to allow excess oil to
drain.
6. If the oil is dirty, repeat the procedure above until the oil comes out clear. Install the screw and
tighten. The residual oil remaining in the impact mechanism chamber is all that is needed for
proper lubrication.
Symptom
Tool runs slowly or
will not operate
Revision date: 02/2008
Revision date 10/2015
General Troubleshooting Guide
Possible Cause(s)
1. Grit or gum in tool.
1.Flush the tool with air tool oil, gum solvent,
or an equal mixture of SAE # 10 motor oil
and kerosene. Lubricate the tool after
cleaning.
2. No oil in tool.
2.Lubricate the tool according to the lubrication
instructions in this manual.
3. Low air pressure.
3.Adjust the compressor regulator to tool
maximum while the tool is running free.
4. Air hose leaks.
4.Tighten and seal hose fittings if leaks are
found.
5. Pressure drops.
5-1.Be sure the hose is the proper size.
Long hoses or tools using large volumes of
air may require a hose with an I.D. of 12.7
mm (1/2") or larger depending on the total
length of the hose.
5-2.Do not use a multiple number of hoses
connected together with quick connect
fittings. This causes additional pressure
drops and reduces the tool power Directly
connect the hoses together.
6. Worn ball bearing
6.Remove and inspect bearing for rust, dirt
in motor.
and grit or worn race. Clean and regress
bearing with bearing grease.
6.
Corrective Action
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