Grizzly G0453, G0454 owner manual Service, Troubleshooting, Motor & Electrical

SECTION 7: SERVICE

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. Note: Please gather the serial number and manufacture date of your machine before calling.

Troubleshooting

Motor & Electrical

Symptom	Possible Cause		Possible Solution
Machine does not	1.	Stop push-button engaged/faulty.	1.	Rotate button to reset/replace it.
start or a breaker	2.	Power supply switched OFF or at fault.	2.	Ensure power supply is on/has correct voltage.
trips.	3.	Thermal overload relay has tripped.	3.	Reset; adjust trip load dial if necessary; replace.
	4.	Wall circuit breaker tripped.	4.	Ensure circuit size is correct/replace weak breaker.
	5.	Plug/receptacle at fault/wired wrong.	5.	Test for good contacts; correct the wiring.
	6.	Motor connection wired wrong.	6.	Correct motor wiring connections (Pages 47–48).
	7.	Contactor not energized/has poor contacts.	7.	Test all legs for power/replace if faulty.
	8.	Wiring open/has high resistance.	8.	Check/fix broken, disconnected, or corroded wires.
	9.	ON/OFF switch at fault.	9.	Replace switch.
	10. Start capacitor at fault.		10. Test/replace if faulty.
	11. Centrifugal switch at fault.		11. Adjust/replace centrifugal switch.
	12. Motor at fault.		12. Test/repair/replace.
Machine stalls or is	1.	Feed rate too fast.	1.	Decrease feed rate.
underpowered.	2.	Workpiece material not suitable.	2.	Only cut wood/ensure moisture is below 20%.
	3.	Dust collection ducting problem.	3.	Clear blockages, seal leaks, use smooth wall duct,
				eliminate bends, close other branches.
	4.	Motor overheated.	4.	Clean motor, let cool, and reduce workload.
	5.	Machine undersized for task.	5.	Use sharp blades/inserts; reduce feed rate or depth
				of cut.
	6.	V-belt(s) slipping.	6.	Tension/replace belt(s) (Page 37); ensure pulleys
				are aligned (Page 45).
	7.	Motor wired incorrectly.	7.	Wire motor correctly (Pages 47–48).
	8.	Plug/receptacle at fault.	8.	Test for good contacts/correct wiring.
	9.	Run capacitor at fault.	9.	Test/repair/replace.
	10. Pulley/sprocket slipping on shaft.		10. Replace loose pulley/shaft.
	11. Motor bearings at fault.		11. Test/repair/replace.
	12. Contactor not energized/has poor contacts.		12. Test all legs for power/replace if faulty.
	13. Motor at fault.		13. Test/repair/replace.
	14. Centrifugal switch at fault.		14. Adjust/replace centrifugal switch.
Machine has	1.	Belts slapping cover.	1.	Replace/realign belts with a matched set.
vibration or noisy	2.	Knives/gibs at fault.	2.	Resharpen/replace knives; set knife alignment/
operation.				height correctly.
	3.	Blade at fault.	3.	Replace warped/bent blade; resharpen dull blade.
	4.	V-belt(s) worn or loose.	4.	Inspect/replace belts with a new matched set.
	5.	Pulley loose.	5.	Realign/replace shaft, pulley, setscrew, and key.
	6.	Motor mount loose/broken.	6.	Tighten/replace.
	7.	Machine incorrectly mounted.	7.	Tighten mounting bolts; relocate/shim machine.
G0453/G0454 (Mfg. Since 3/08)				-33-