Grizzly G0459 owner manual Service, Troubleshooting, Motor & Electrical

SECTION 7: SERVICE

This section is provided for your convenience—it is not a substitute for the Grizzly Service Department. If you need help troubleshooting, you need replacement parts, or you are unsure of how to perform the pro- cedures in this section, then feel free to call our Technical Support at (570) 546-9663.

Troubleshooting

Motor & Electrical

Symptom		Possible Cause	Possible Solution
Machine does not		1. Plug or receptacle is at fault or wired incor-	1. Test power plug and receptacle for good contact and
start or a breaker		rectly.	correct wiring.
trips.		2. Start capacitor is faulty.	2. Test and replace capacitor as required (see photo,
			Page 39).
		3. Motor connection is wired incorrectly.	3. Correct motor wiring (see Page 40).
		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 faulty.	6. Replace faulty ON button or ON/OFF switch (see
			photo, Page 39).
		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 dam-
			aged fan.
		3. V-belt(s) is worn or is loose.	3. Inspect belt(s), replace as matched sets, and re-ten-
			sion.
		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.

G0459 12" Drum Sander -23-