Grizzly G0459P owner manual Service, Troubleshooting, Motor & Electrical

SECTION 7: SERVICE

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Troubleshooting

Motor & Electrical

Symptom		Possible Cause		Possible Solution
Machine	does not	1.	Plug or receptacle is at fault or wired	1.	Test power plug and receptacle for good contact and
start or	a breaker		incorrectly.		correct wiring.
trips.		2.	Start capacitor is faulty.	2.	Test and replace capacitor as required (see photo,
					Page 44).
		3.	Motor connection is wired incorrectly.	3.	Correct motor wiring (see Page 45).

4.Power supply is faulty, or is switched OFF. 4. Make sure all hot lines and grounds are operational and have correct voltage on all legs.

	5.	Centrifugal Switch is at fault.	5.	Adjust or replace the centrifugal switch.
	6.	Motor ON button or ON/OFF switch is	6.	Replace faulty ON button or ON/OFF switch (see
		faulty.		photo, Page 44).
	7.	Motor is at fault.	7.	Test, repair or replace motor.
Machine has	1.	Motor or component is loose.	1.	Inspect, replace for stripped or damaged bolts/nuts,
vibration or noisy				and re-tighten with thread locking fluid.
operation.	2.	Motor fan is rubbing on fan cover.	2.	Replace dented fan cover, and replace loose or
				damaged fan.
	3.	V-belt(s) is worn or is loose.	3.	Inspect belt(s), replace as matched sets, and
				re-tension.
	4.	Pulley is loose.	4.	Remove pulley, replace shaft, pulley, setscrew, and
				key as required, and realign.
	5.	Motor bearings are at fault.	5.	Check bearings, replace motor or bearings as
				required.
	6.	Centrifugal switch.	6.	Normal snap/click sound on RPM wind down. No
				problem exists.
Motor overheats.	1.	Motor overloaded.	1.	Reduce load on motor.
	2.	Air circulation through the motor restricted.	2.	Clean off motor to provide normal air circulation.

Model G0459/G0459P (Mfg. 7/11+) -27-