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13 . TROUBLE SHOOTING
If a problem or concern occurs, please check the following prior to consulting your dealer.
Trouble
Spindle does not rotate
The ball bearings are damaged.
or rotate smoothly.
Motor is broken.
Overheating during
Cutting debris has contaminated the ball
rotation.
bearing, and the ball bearing is damaged.
Low air pressure.
Abnormal vibration or
Using bent tool.
noise during rotation.
Cutting debris has contaminated the ball
bearing.
The ball bearings are worn.
Cause
Inspection / Corrective Action
Replace the ball bearings.
(Return to NAKANISHI dealer service.)
Replace the motor.
(Return to NAKANISHI dealer service.)
Replace the ball bearings.
(Return to NAKANISHI dealer service.)
Check air hose connection and air pressure.
Replace the tool.
Replace the ball bearings.
(Return to NAKANISHI dealer service.)
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