Grizzly G0458 instruction manual Service, Troubleshooting

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 start or	1.	Plug/receptacle is faulty or wired incorrectly.	1.	Test power plug and receptacle for good
a breaker trips.				contact and correct wiring.
	2.	Start capacitor is faulty.	2.	Test capacitor and replace if necessary.
	3.	Motor connection is wired incorrectly.	3.	Correct motor wiring (see Page 37).
	4.	Power supply is faulty, or is switched OFF.	4.	Make sure hot lines and grounds are opera-
				tional and have correct voltage on all legs.
	5.	Safety switch key is at fault.	5.	Install or replace safety key, or replace
				switch assembly.
	6.	Motor ON/OFF switch is faulty.	6.	Replace faulty ON/OFF switch.
	7.	Centrifugal switch is at fault.	7.	Adjust or replace the centrifugal switch.
	8.	Cable or wiring is open or has high resis-	8.	Check for disconnected or corroded connec-
		tance.		tions, troubleshoot wires for internal or exter-
				nal breaks, then repair or replace wiring.
	9.	Motor is at fault.	9.	Test, then repair or replace motor.
Machine stalls or is under-	1.	Wrong workpiece material.	1.	Only process wood with correct moisture
powered.				content, and no glues, or resins.
	2.	Low power supply voltage.	2.	Make sure hot lines and grounds are opera-
				tional and have correct voltage on all legs.
	3.	Run capacitor is faulty.	3.	Test capacitor and replace if necessary.
	4.	Filter bags are at fault.	4.	Empty and clean filter bag.
	5.	V-belts are slipping.	5.	Replace bad belts, align pulleys, and re-ten-
				sion the V-belts (see Pages 27 & 30).
	6.	Plug or receptacle is at fault.	6.	Test power plug and receptacle for good
				contact and correct wiring.
	7.	Motor connection is wired incorrectly.	7.	Correct motor wiring (see Page 37).
	8.	Motor bearings are at fault.	8.	Rotate motor shaft for noisy or burnt bear-
				ings, repair/replace as required.
	9.	Machine is overloaded.	9.	Use new sandpaper with appropriate grit,
				and reduce the feed rate/depth of sanding.
	10. Motor has overheated.		10. Check motor cooling air flow, let motor cool,
				and reduce workload on machine.
	11. Centrifugal switch is at fault.		11. Adjust/replace the centrifugal switch.
	12. Motor is at fault.		12. Test motor, and repair/replace if necessary.

-28- G0458 18" Open End Belt/Drum Sander