Grizzly G0695 owner manual Service, Troubleshooting, Motor & Electrical

SECTION 7: 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 button is pushed in or is at fault.	1.	Turn the stop button clockwise until it pops out;
start or	a breaker				replace if faulty.
trips.		2.	ON button is at fault.	2.	Replace faulty ON button.
		3.	Plug/receptacle is at fault or wired	3.	Test for good contacts; correct the wiring.
			incorrectly.
		4.	Power supply is switched OFF or is at fault,	4.	Ensure hot lines have correct voltage on all legs and
			or the breaker tripped.		main power supply is switched ON.
		5.	Motor connection wired incorrectly.	5.	Correct motor wiring connections (Page 44).
		6.	Motor windings or motor is at fault.	6.	Replace motor.
Machine stalls or is		1.	Machine is undersized for the task.	1.	Use smaller sharp tooling; reduce the feed rate;
overloaded.					reduce the spindle RPM; use coolant.
		2.	Workpiece alignment is poor.	2.	Eliminate workpiece binding; use vise or clamps as
					required for workpiece alignment control.
		3.	Dull or incorrect cutting tool.	3.	Use sharp and correct cutting tool for the operation.
		4.	Motor connection is wired incorrectly.	4.	Correct motor wiring connections (Page 44).
		5.	Plug/receptacle is at fault.	5.	Test for good contacts; correct the wiring.
		6.	Pulley/sprocket slipping on shaft.	6.	Replace loose pulley/shaft.
		7.	Motor bearings are at fault.	7.	Test by rotating shaft; rotational grinding/loose shaft
					requires bearing replacement.
		8.	Motor has overheated.	8.	Clean off motor, let cool, and reduce workload.
		9.	Motor is at fault.	9.	Test and repair or replace.
Machine	has	1.	Tool holder or cutter is at fault.	1.	Replace out-of-round tool holder; replace/resharpen
vibration	or noisy				cutter; use appropriate feed rate and cutting RPM.
operation.		2.	Workpiece alignment is poor.	2.	Eliminate workpiece binding; use vise or clamps as
					required for workpiece alignment control.
		3.	Motor or component is loose.	3.	Inspect/replace stripped or damaged bolts/nuts, and
					re-tighten with thread locking fluid.
		4.	Pulley is loose.	4.	Realign/replace shaft, pulley, setscrew, and key as
					required.
		5.	Machine is incorrectly mounted or sits	5.	Tighten/replace mounting bolts in floor; relocate/
			unevenly.		shim machine.
		6.	Motor fan is rubbing on fan cover.	6.	Replace dented fan cover or fan.
		7.	Motor bearings are at fault.	7.	Test by rotating shaft; rotational grinding/loose shaft
					requires bearing replacement.

-38- Model G0695 (Mfg. Since 9/10)