Grizzly G0453 Manuel D’Utilisation
-33-
g0453/g0454 (Mfg. since 3/08)
SEctION 7: SERvIcE
troubleshooting
Motor & Electrical
symptom
possible Cause
possible solution
Machine does not
start or a breaker
trips.
start or a breaker
trips.
1. stop push-button engaged/faulty.
2. power supply switched oFF or at fault.
3. thermal overload relay has tripped.
4. Wall circuit breaker tripped.
5. plug/receptacle at fault/wired wrong.
6. Motor connection wired wrong.
7. Contactor not energized/has poor contacts.
8. Wiring open/has high resistance.
9. on/oFF switch at fault.
10. start capacitor at fault.
11. Centrifugal switch at fault.
12. Motor at fault.
2. power supply switched oFF or at fault.
3. thermal overload relay has tripped.
4. Wall circuit breaker tripped.
5. plug/receptacle at fault/wired wrong.
6. Motor connection wired wrong.
7. Contactor not energized/has poor contacts.
8. Wiring open/has high resistance.
9. on/oFF switch at fault.
10. start capacitor at fault.
11. Centrifugal switch at fault.
12. Motor at fault.
1. rotate button to reset/replace it.
2. Ensure power supply is on/has correct voltage.
3. reset; adjust trip load dial if necessary; replace.
4. Ensure circuit size is correct/replace weak breaker.
5. test for good contacts; correct the wiring.
6. Correct motor wiring connections (
2. Ensure power supply is on/has correct voltage.
3. reset; adjust trip load dial if necessary; replace.
4. Ensure circuit size is correct/replace weak breaker.
5. test for good contacts; correct the wiring.
6. Correct motor wiring connections (
Pages 47–48).
7. test all legs for power/replace if faulty.
8. Check/fix broken, disconnected, or corroded wires.
9. replace switch.
10. test/replace if faulty.
11. Adjust/replace centrifugal switch.
12. test/repair/replace.
8. Check/fix broken, disconnected, or corroded wires.
9. replace switch.
10. test/replace if faulty.
11. Adjust/replace centrifugal switch.
12. test/repair/replace.
Machine stalls or is
underpowered.
underpowered.
1. Feed rate too fast.
2. Workpiece material not suitable.
3. dust collection ducting problem.
2. Workpiece material not suitable.
3. dust collection ducting problem.
4. Motor overheated.
5. Machine undersized for task.
5. Machine undersized for task.
6. V-belt(s) slipping.
7. Motor wired incorrectly.
8. plug/receptacle at fault.
9. run capacitor at fault.
10. pulley/sprocket slipping on shaft.
11. Motor bearings at fault.
12. Contactor not energized/has poor contacts.
13. Motor at fault.
14. Centrifugal switch at fault.
8. plug/receptacle at fault.
9. run capacitor at fault.
10. pulley/sprocket slipping on shaft.
11. Motor bearings at fault.
12. Contactor not energized/has poor contacts.
13. Motor at fault.
14. Centrifugal switch at fault.
1. decrease feed rate.
2. only cut wood/ensure moisture is below 20%.
3. Clear blockages, seal leaks, use smooth wall duct,
2. only cut wood/ensure moisture is below 20%.
3. Clear blockages, seal leaks, use smooth wall duct,
eliminate bends, close other branches.
4. Clean motor, let cool, and reduce workload.
5. use sharp blades/inserts; reduce feed rate or depth
5. use sharp blades/inserts; reduce feed rate or depth
of cut.
6. tension/replace belt(s) (
Page 37); ensure pulleys
are aligned (
Page 45).
7. Wire motor correctly (
Pages 47–48).
8. test for good contacts/correct wiring.
9. test/repair/replace.
10. replace loose pulley/shaft.
11. test/repair/replace.
12. test all legs for power/replace if faulty.
13. test/repair/replace.
14. Adjust/replace centrifugal switch.
9. test/repair/replace.
10. replace loose pulley/shaft.
11. test/repair/replace.
12. test all legs for power/replace if faulty.
13. test/repair/replace.
14. Adjust/replace centrifugal switch.
Machine has
vibration or noisy
operation.
vibration or noisy
operation.
1. Belts slapping cover.
2. Knives/gibs at fault.
2. Knives/gibs at fault.
3. Blade at fault.
4. V-belt(s) worn or loose.
5. pulley loose.
6. Motor mount loose/broken.
7. Machine incorrectly mounted.
4. V-belt(s) worn or loose.
5. pulley loose.
6. Motor mount loose/broken.
7. Machine incorrectly mounted.
1. replace/realign belts with a matched set.
2. resharpen/replace knives; set knife alignment/
2. resharpen/replace knives; set knife alignment/
height correctly.
3. replace warped/bent blade; resharpen dull blade.
4. inspect/replace belts with a new matched set.
5. realign/replace shaft, pulley, setscrew, and key.
6. tighten/replace.
7. tighten mounting bolts; relocate/shim machine.
4. inspect/replace belts with a new matched set.
5. realign/replace shaft, pulley, setscrew, and key.
6. tighten/replace.
7. tighten mounting bolts; relocate/shim machine.
Review the troubleshooting and procedures in this section if a problem develops with your machine. If you
need replacement parts or additional help with a procedure, call our Technical Support at (570) 546-9663.
need replacement parts or additional help with a procedure, call our Technical Support at (570) 546-9663.
Note: Please gather the serial number and manufacture date of your machine before calling.