Grizzly G0456 owner manual Service, Troubleshooting

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SECTION 7: SERVICE

Review the troubleshooting and procedures in this section to fix your machine if a problem develops. 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 lockout enabled.	1.	Turn both paddle switch and speed dial OFF. Turn
start or a breaker					paddle switch ON first, then turn speed dial.
trips.		2.	Power supply is at fault/switched OFF.	2.	Ensure hot lines have correct voltage on all legs and
		2.	Power supply is at fault/switched OFF.	2.	Ensure hot lines have correct voltage on all legs and
					main power supply is switched ON.
		3.	Speed dial/rheostat is at fault.	3.	Test/replace if faulty.
		4.	Computer board is at fault.	4.	Inspect computer board; replace if faulty.
		5.	Lockout key is at fault.	5.	Install/replace lockout key; replace switch.
		6.	Motor brushes are at fault.	6.	Remove and replace brushes (refer to Page 34).
		7.	ON/OFF switch is at fault.	7.	Replace faulty ON button or ON/OFF switch.
		8.	Wiring is open/has high resistance.	8.	Repair wiring as necessary.
		9.	Motor is at fault.	9.	Test/repair/replace.

Machine stalls or		1.	Feed rate/cutting speed too fast for task.	1.	Decrease feed rate/cutting speed.
is underpowered.		2.	Low power supply voltage.	2.	Ensure hot lines have correct voltage on all legs.
		3.	Computer board is at fault.	3.	Inspect and replace if faulty.
		4.	Motor speed dial/rheostat is at fault.	4.	Test and replace if faulty.
		5.	Belt(s) slipping.	5.	Replace bad belt(s), align pulleys, and re-tension.
		6.	Plug/receptacle is at fault.	6.	Test for good contacts; correct the wiring.
		7.	Motor brushes are at fault.	7.	Remove and replace brushes (refer to Page 34).
		8.	Motor bearings are at fault.	8.	Test by rotating shaft; rotational grinding/loose shaft
					requires bearing replacement.
		9.	Machine is undersized for the task.	9.	Use sharp lathe bits and chisels; reduce the feed rate/
					depth of cut.
		10. Motor is at fault.		10. 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.	V-belt(s) worn or loose.	2.	Inspect/replace belts (refer to Page 33).
		2.	V-belt(s) worn or loose.	2.	Inspect/replace belts (refer to Page 33).
		3.	Sandpaper damaged, off center, or rub-	3.	Replace sandpaper evenly; adjust table-to-disc dis-
			bing.		tance.
		4.	Pulley is loose.	4.	Realign/replace shaft, pulley, setscrew, and key.
		5.	Machine is uneven on floor/poor mounting.	5.	Tighten floor mounting; relocate/shim machine.
		6.	Workpiece or chuck (if installed) is at fault.	6.	Center workpiece in chuck or face plate; reduce RPM;
					replace defective chuck.
		7.	Motor bearings are at fault.	7.	Test by rotating shaft; rotational grinding/loose shaft
					requires bearing replacement.
		8.	Spindle bearings at fault.	8.	Test by rotating spindle; rotational grinding/loose shaft
					requires bearing replacement.

-30-					G0456 Variable Speed Wood Lathe

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Contents Model G0456 Variable Speed Wood Lathe Page Table of Contents Warranty and Returns Contact Info IntroductionForeword Machine Data Sheet Identification Safety Safety Instructions for MachineryAlways Lock Mobile Bases if Used Before Operating Machinery Additional Safety for Wood Lathes 220V Single-Phase Circuit RequirementsSET UP Set Up SafetyItems Needed for Set Up UnpackingHardware not shown Qty InventoryInventory Components Figure Qty Clean Up Site ConsiderationsTo mount the lathe bed Mounting LatheComponents and Hardware Needed Qty To install the sanding table To install the tool restSanding Table Tool RestTo test run the machine Dust Collection Test RunTo connect a dust collection hose Controls Operation Safety Safety KeyOperations To position the tool rest along the bed Adjusting Tailstock Adjusting Tool RestTo position the tailstock along the bed To remove the spur center Installing/Removing Spur CenterTo install the centers To remove the live center Installing/Removing Live CenterTo install the live center Selecting Turning Tools GougeTo set up a spindle turning operation Spindle TurningFaceplate Turning To mount your workpiece to the faceplateChanging Speeds Sanding/FinishingTo mount your workpiece to a backing block To change between High and Low speedsAttaching Sandpaper Disc SandingTo attach sandpaper To perform sanding operationsMiter Sanding Angle SandingTo perform miter sanding operations To perform angle sanding operationsAccessories G1194-3-Jaw ChuckG1082-4-Jaw Chuck G3168-1-1⁄2 x 8 TPI RH Threaded InsertModel H6542 Robert Sorby 8-PC Set G9863-8-PC HSS Lathe Chisel SetH1300 H1298 G7984 H2347 H0736 PSA Sanding Discs 2 pkModel Grit Maintenance Cleaning/LubricatingService TroubleshootingWood Lathe Operation To align the headstock with the tailstock Tools Needed QtyTo check headstock/tailstock alignment Replacing or Tightening V-Belt To change the V-beltReplacing Motor Brushes To replace the motor brushesTo adjust table tilt Table TiltAligning Table To align the tableTo adjust miter gauge Miter GaugeElectrical Components Wiring Diagram Parts Breakdown Parts List DescriptionDescription Warranty and Returns Page Page