Grizzly G0700 owner manual Service, Troubleshooting, Motor & Electrical

SECTION 8: SERVICE

Review the troubleshooting and procedures in this section to fix or adjust your machine if a problem devel- ops. If you need replacement parts or you are unsure of your repair skills, then feel free to call our Technical Support at (570) 546-9663.

Troubleshooting

Motor & Electrical

Symptom		Possible Cause		Possible Solution
Machine	does not	1.	Stop push-button is engaged/faulty.	1.	Rotate clockwise slightly until it pops out/replace it.
start or	a breaker	2.	Power supply switched OFF or is at fault.	2.	Ensure power supply is switched on; ensure power
trips.					supply has the correct voltage.
		3.	Motor connection wired incorrectly.	3.	Correct motor wiring connections.
		4.	Thermal overload relay has tripped.	4.	Wait for it to cool down, then it will reset auto-
					matically. If necessary, disconnect power and reset
					manually by pushing reset button inside switch.
		5.	Wall fuse/circuit breaker is blown/tripped.	5.	Ensure circuit size is suitable for this machine;
					replace weak breaker.
		6.	Contactor not getting energized/has burnt	6.	Test for power on all legs and contactor operation.
			contacts.		Replace unit if faulty.
		7.	Wiring is open/has high resistance.	7.	Check for broken wires or disconnected/corroded
					connections, and repair/replace as necessary.
		8.	Motor ON button or ON/OFF switch is at	8.	Replace faulty ON button or ON/OFF switch.
			fault.
		9.	Motor is at fault.	9.	Test/repair/replace.
Machine stalls or is		1.	Feed rate/cutting speed too fast for task.	1.	Decrease feed rate/cutting speed.
underpowered.		2.	Workpiece material is not suitable for this	2.	Only cut wood products; make sure moisture content
			machine.		is below 20% and there are no foreign materials in
					the workpiece.
		3.	Belt(s) slipping.	3.	Replace bad belt(s), align pulleys, and re-tension.
		4.	Motor connection is wired incorrectly.	4.	Correct motor wiring connections.
		5.	Motor bearings are at fault.	5.	Test by rotating shaft; rotational grinding/loose shaft
					requires bearing replacement.
		6.	Start delay module is at fault.	6.	Adjust to correct delay; replace module.
		7.	Motor is at fault.	7.	Test/repair/replace.

-60- Model G0700 (Mfg. since 8/09)