Set the air compressor’s regulator to 90 PSI. This tool operates at a maximum 90 PSI pressure.

Cutting wheels and spindles should be inspected daily for excessive wear, cracking, and other damage. Replace any

cutting wheel showing signs of damage.

Depress the throttle safety release and throttle control lever to operate tool. NOTE: The spindle revolves at full speed when throttle control lever is fully depressed. As thumb is raised the self releasing throttle closes, slowing down the spindle and allowing the operator to choose the best speed and power for the job. When the throttle lever is completely released it cannot be depressed again until the safety release is disengaged.

DO NOT place any portion of the body in line with the cutting wheel while it is rotating.

Release throttle control lever to stop tool.

Always disconnect air supply when changing cutting wheels.

When job is complete, turn the air compressor off and store as described in the air compressor operator manual.

MAINTENANCE

Lubrication

Air tools require lubrication throughout the life of the tool. The air motor and bearing uses compressed air to power the tool. Because moisture in compressed air will rust the air motor, you must lubricate the motor daily. An inline oiler is recommended.

To lubricate the air motor manually:

Disconnect the tool from the air supply holding it so the air inlet faces up.

Depress the throttle safety release and throttle control lever and place one to two drops of air tool oil in the air inlet Depressing the throttle control lever helps circulate oil in the motor. NOTE: Use SAE #10 weight oil if air tool oil is not available.

Connect the tool to an air source, cover the exhaust end with a towel and run for a few seconds.

Any excess oil in the motor is immediately expelled from the exhaust port. Always direct exhaust port away from people or objects.

Failure to lubricate the tool at the air inlet will void your warranty.

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Porter-Cable PTX3 instruction manual Lubrication, Maintenance, To lubricate the air motor manually