Model T27961 (Mfd. Since 02/17)
-21
-
Troubleshooting
Symptom
Possible Cause
Solution
Machine does not
start or a breaker
trips.
1. Power supply circuit
breaker tripped or fuse
blown.
2. Wiring open/has high
resistance.
3. Motor brushes
sticking, improperly
installed, at fault.
4. ON/OFF switch at
fault.
5. Circuit board at fault.
6. Motor at fault.
1. Reset circuit breaker or replace
fuse.
2. Check/fix broken, disconnected,
or corroded wires.
3. Remove/re-install brushes;
replace (
Page 19).
4. Replace switch.
5. Replace circuit board.
6. Test/repair/replace.
Machine stalls or is
underpowered.
1. Sanding with too much
pressure.
2. Drive belt(s) damaged
and/or slipping.
3. Motor brushes worn.
1. Reduce pressure of sanding
sleeve against workpiece.
2. Inspect/replace drive belt(s)
(
Page 20).
3. Replace brushes (
Page 19).
Machine has
vibration or
abnormal noise.
1. Machine incorrectly
mounted to
workbench.
2. Damaged or worn
bearings.
1. Correctly mount to workbench
and tighten mounting hardware.
2. Replace bearings.
SECTION 7: SERVICE
Review the troubleshooting and procedures in this section if a problem develops with your
tool. If you need replacement parts or additional help with a procedure, call our Technical
Support.
Motor and Electrical
Содержание T27961
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