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Model T10828 (Mfd. since 12/14) -11-
Troubleshooting
Symptom Possible Cause Solution
Motor won't start. 1. Brushes dirty or worn.
2. Power supply inoperative.
3. Power cord defective.
1. Clean or replace burshes.
2. Check circuit breaker.
3. Replace power cord.
Bit slipping. 1. Collet not tight.
2. Collet damaged.
3. Bit damaged.
1. See Installing Bits on
Page 8.
2. Replace collet.
3. Replace bit
Excessive
vibration.
1. Bit not inserted correctly.
2. Brushes worn.
1. See Installing Bits on
Page 8.
2. Replace brushes.
Motor
overheats.
1. Dirty or blocked motor vents. 1. Blow out and wipe down
motor vents.
SECTION 7: SERVICE