Grizzly G0694 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.	Emergency stop push-button is engaged/	1.	Rotate button to reset/replace it.
start or a breaker		faulty.
trips.	2.	Motor ON button at fault.	2.	Replace button.
	3.	Power supply switched OFF or at fault.	3.	Ensure power supply is on/has correct voltage.
	4.	Plug/receptacle at fault/wired wrong.	4.	Test for good contacts; correct the wiring.
	5.	Motor connection wired incorrectly.	5.	Correct motor wiring connections.
	6.	Spindle direction switch is at fault.	6.	Replace faulty spindle direction dial.
	7.	Speed dial is at fault.	7.	Replace bad speed dial.
	8.	Wiring is open/has high resistance.	8.	Check for broken wires or disconnected/corroded
				connections, and repair/replace as necessary.
	9.	Inverter at fault.	9.	Inspect inverter; replace if faulty.
	10. Motor is at fault.		10. Test/repair/replace.
Machine stalls or is	1.	Feed rate/cutting speed incorrect or task.	1.	Decrease feed rate/increase speed.
underpowered.	2.	Workpiece material not suitable for	2.	Only cut wood/ensure moisture is below 20%.
		machine.
	3.	Belt slipping.	3.	Re-tension or replace bad belt (see Page 42).
	4.	Motor wired incorrectly.	4.	Wire motor correctly (see Page 48).
	5.	Plug/receptacle at fault.	5.	Test for good contacts/correct wiring.
	6.	Pulley slipping on shaft.	6.	Replace loose pulley/shaft.
	7.	Motor bearings are at fault.	7.	Test/repair/replace.
	8.	Machine is undersized for the task.	8.	Use sharp lathe bits and chisels; reduce the feed
				rate/depth of cut.
	9.	Motor has overheated.	9.	Clean off motor, let cool, and reduce workload.
	10. Speed switch at fault.		10. Replace bad speed switch.
	11. Motor is at fault.		11. Test/repair/replace.
Machine has	1.	Motor or component is loose.	1.	Inspect/replace stripped or damaged bolts/nuts, and
vibration or noisy				re-tighten with thread locking fluid.
operation.	2.	Belt worn or loose.	2.	Inspect/replace belt (see Pages 41–42).
	3.	Motor fan is rubbing on fan cover.	3.	Replace dented fan cover; replace loose/damaged
				fan.
	4.	Pulley is loose.	4.	Replace shaft, pulley, setscrew, and key as
				required.
	5.	Machine is incorrectly mounted or sits	5.	Tighten/replace anchor studs in floor; relocate/shim
		unevenly on floor.		machine.
	6.	Motor mount loose/broken.	6.	Tighten/replace.
	7.	Workpiece, center, or faceplate is at fault or	7.	Center workpiece on faceplate; reduce RPM; replace
		mounted incorrectly.		defective center or faceplate.
	8.	Motor bearings are at fault.	8.	Test by rotating shaft; rotational grinding/loose shaft
				requires bearing replacement.
Model G0694 (Mfg. Since 1/09)				-39-