Section 7: Service; Troubleshooting - Grizzly T27139 Owner's Manual

SECTION 7: SERVICE

Symptom
Tool does not start or
a breaker trips.
Tool stalls or is under-
powered.
Tool has excessive
vibration or noisy
operation.
Model T27139 (Mfd. Since 3/16)

Troubleshooting

Possible Cause
1. Wall circuit breaker tripped.
2. Plug/receptacle at fault/
wired wrong.
3. Wiring open/has high resis-
tance.
4. Motor brushes at fault.
5. Motor at fault.
1. Workpiece material unsuit-
able for tool.
2. Workpiece crooked; guide
mis-adjusted.
3. Tool undersized for task;
wrong bit.
4. Plug/receptacle at fault.
5. Motor bearings at fault.
6. Motor overheated.
7. Motor brushes at fault.
8. Motor at fault.
1. Motor or component loose.
2. Bit at fault.
3. Motor mount loose/broken.
4. Tool incorrectly mounted.
5. Motor bearings at fault.
Possible Solution
1. Ensure circuit size is cor-
rect/replace weak breaker.
2. Test for good contacts; cor-
rect the wiring.
3. Check/fix broken, discon-
nected, or corroded wires.
4. Replace brushes.
5. Test/repair/replace.
1. Only cut wood; ensure
moisture is below 20%.
2. Straighten or
workpiece; adjust guide.
3. Use correct bit; reduce feed
rate or depth of cut.
4. Test for good contacts/cor-
rect wiring.
5. Test/repair/replace.
6. Clean motor, let cool, and
reduce workload.
7. Replace brushes.
8. Test/repair/replace.
1. Inspect/replace damaged
bolts/nuts, and re-tighten
with thread locking fluid.
2. Replace broken
resharpen dull bit.
3. Tighten/replace.
4. Re-install router motor into
base.
5. Test by rotating shaft; grind-
ing/loose shaft requires
bearing replacement.
replace
bit;
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