5 - ENG
Air Motor Lubrication
To maintain the maximum performance of the air tool, it must be lubricated
each time it is used. Dust, dirt, rust and oil residue will build up inside the tool
and reduce the performance. An in-line oiler is recommended for proper
automatic tool lubrication (see Figure 1). If an in-line oiler is not available, the
tool can be lubricated manually through the inlet port (see Figure 4).
1. Disconnect the air tool from the air supply.
2. Turn the tool upside down and while depressing the trigger, add 4-6 drops
of air tool oil or SAE10 nondetergent oil into the air inlet.
NOTE:
Depressing the trigger helps circulate oil in the air motor.
3. Reconnect the tool to the air supply, cover the exhaust port end with a towel and run in forward and reverse
directions for approximately 30 seconds to remove excess oil.
NOTE: If the tool remains sluggish after it has been lubricated, the internal components may need to
be cleaned.
To Clean:
Disconnect the air tool from the air supply and pour or spray a generous amount of WD-40® into the air inlet
with the trigger depressed. Connect the tool to the air supply, cover the exhaust port end with a towel and run in
forward and reverse directions for approximately 30 seconds. Follow the air motor lubrication instructions above
after cleaning is completed to re-lubricate the tool.
After oiling or cleaning, cover the exhaust port with a towel and operate the tool for a
few seconds to safely remove the excess oil. Clean the handle and surface of the tool of any oil residue.
Failure to cover the exhaust port and clean the tool, can result in serious injury.
Note: Keep the towel away
from moving parts!
USER-MAINTENANCE INSTRUCTIONS
TROUBLESHOOTING GUIDE
SYMPTOM
POSSIBLE CAUSE(S)
CORRECTIVE ACTION
Tool will not run or runs
slowly
Grit in tool; tool gummed up
No oil in tool
Low air pressure
Air hose leaks
Clean the air motor inside the tool with WD-40®
(see “user maintenance” section).
Add 4-6 drops of air tool oil into the air inlet of the
tool (see “user maintenance” section).
Adjust compressor regulator to 90 PSI.
Tighten and seal hose fittings with Teflon® tape if
leaks are found.
Excessive vibration
Damaged grinding stone or
accessory
Replace with a new stone or accessory.
TOOL SPECIFICATIONS
Max RPM
25,000
Average SCFM Requirements
5.1 CFM @ 90 PSI
Air Inlet
1/4” NPT (female)
Collet size
1/4” and 1/8”
Recommended Hose Size
3/8”
Maximum Working Pressure
90 PSI
Figure 4
OPERATING INSTRUCTIONS (continued)
b. Insert the desired collet chuck into the tool and tighten, using the collet wrenches.
6. Connect the tool to the air hose quick coupler.
NOTE: It is recommended that a whip hose with a swivel
(P012-0079SP - not included) be used to prevent twisting, kinking and excessive wear to the air hose
(ref. item “F” in figure 1 for recommended connections).
7. Squeeze the trigger gently. When starting with a cold grinding stone or accessory, apply it to the work slowly
until the stone or accessory gradually warms up. Make smooth contact with the work, and avoid any
bumping action or excessive pressure. When the trigger is fully depressed, the tool is at full speed. As the
trigger is released, the tool slows down, allowing the operator to choose the best speed and power for the
job. Release the trigger to stop the tool.
