26
MAINTENANCE SECTION
TROUBLESHOOTING
(Continued)
6.
Bit Holder cannot be depressed.
Tool makes abnormal sounds
when the motor is running.
Is there looseness at the
assembled points?
After removing the gear train
does the motor sound normal
when running?
Is gear train properly lubricated?
Tool generates abnormal heat
when operating.
After removing the gear train,
does the tool cool down and
motor run normally?
1. Bit Holder is defective; repair or replace the Bit Holder.
2. Retaining Ring on bit Holder has been lost or is out of position.
1. Screws are loose; tighten all Screws.
2. Clutch Housing is loose; tighten Clutch Housing to proper torque.
1. Armature is in contact with the magnet; replace the motor.
2. Foreign material has gotten into the motor; clean or replace the
motor.
3. Ball Bearings are defective; replace the motor.
4. Armature is defective; replace the motor.
No grease on the gear train; apply a thin film of the recommended
grease.
1. Gears are worn or dirty; clean or replace the gears.
Motor is defective; replace the motor.
Planetary gears and the Clutch require lubrication; lubricate the Clutch
and gear train with the recommended grease.
Do not apply too much or too little grease.
Yes
No
No
Yes
No
Yes
7.
Yes
No
