Grizzly G0459P owner manual Sanding Operations

Sanding Operations

Symptom			Possible Cause		Possible Solution
Machine stalls or is			1.	Dust collection ducting is at fault.	1.	Seal all leaks, size ducts correctly, eliminate bends,
underpowered.						and refer to Dust Collection Basics Handbook (ISBN
						0-9635821-2-7) for further recommendations.
			2.	Low power supply voltage.	2.	Make sure all hot lines and grounds are operational
						and have correct voltage on all legs.
			3.	Belt is slipping.	3.	Replace bad belt, align pulleys, and re-tension.
			4.	Motor connection is wired incorrectly.	4.	Correct motor wiring (see Page 45).
			5.	Plug or receptacle is at fault.	5.	Test power plug and receptacle for good contact and
						correct wiring.
			6.	Pulley or sprocket is slipping on shaft.	6.	Replace loose pulley and shaft.
			7.	Motor bearings are at fault.	7.	Rotate motor shaft for noisy or burnt bearings,
						repair/replace as required.
			8.	Machine is undersized for the task.	8.	Use new sandpaper with appropriate grit, and reduce
						the feed rate/depth of sanding.
			9.	Motor has overheated.	9.	Unobstructed motor cooling air flow, let motor cool,
						and reduce workload on machine.
			10. Centrifugal switch is at fault.		10. Adjust or replace the centrifugal switch.
			11. Motor is at fault.		11. Test, repair or replace motor.
Machine		lacks	1.	V-belt loose.	1.	Tighten V-belt (Page 30).
power; drum		stops
turning under load.			2.	Too much pressure on pressure rollers.	2.	Reduce pressure roller pressure (Page 35).
Machine slows when			1.	V-belt loose.	1.	Tighten V-belt (Page 30).
sanding,	making
a squealing		noise,
especially	on	start-	2.	V-belt worn out.	2.	Replace V-belt (Page 31).
up.
Loud repetitious			1.	Pulley setscrews or keys are missing or	1.	Inspect keys and setscrews. Replace or tighten if
noise coming from				loose.		necessary.
machine.					2.	Adjust fan cover mounting position, tighten fan, or
			2.	Motor fan is hitting the cover.		shim fan cover.
			3.	V-belt is defective.	3.	Replace V-belt (Page 31).
Vibration		when	1.	Loose drum pillow block bearings.	1.	Tighten drum pillow block bearings.
sanding.			2.	Worn drum pillow block bearings.	2.	Replace drum pillow block bearings.
Grinding,			1.	Drum bearings lack sufficient grease.	1.	Grease the pillow block bearings (Page 26).
screeching, or
rubbing noise when
sanding drum is			2.	Drum bearings are worn and need	2.	Replace the drum bearings.
powered up.
				replacement.

-28- Model G0459/G0459P (Mfg. 7/11+)