Grizzly G0458 instruction manual Sanding Operations

Symptom	Possible Cause		Possible Solution
Machine has vibration or	1.	Motor or component is loose.	1.	Inspect for stripped/damaged bolts/nuts,
noisy operation.				replace/re-tighten with thread locking fluid.
	2.	V-belts are worn or loose.	2.	Inspect belts, replace and re-tension (see
				Pages 27 & 30).
	3.	Motor fan is rubbing on fan cover.	3.	Replace dented fan cover/damaged fan.
	4.	Pulley is loose.	4.	Remove pulley, replace shaft, pulley, set-
				screw, and key as required, and realign.

5.Machine is incorrectly mounted to the floor. 5. Machine has loose anchor studs in floor, or is sitting on uneven floor. Replace/tighten relocate as required.

				6.	Cast iron motor mount is at fault.	6.	Using leverage and a small pry bar to inspect,
							carefully replace loose/broken mounts.
				7.	Motor bearings are at fault.	7.	Check bearings, replace motor or bearings
							as required.
Sanding Operations
Symptom				Possible Cause		Possible Solution
Vibration when sanding.				1.	Loose drum bearings.	1.	Tighten drum bearings.
				2.	Worn drum bearings.	2.	Replace drum bearings.
Grinding,	screeching,		or	1.	Drum bushings lack sufficient oil.	1.	Oil the drum bushings (see Page 25).
rubbing noise when sand-				2.	Drum bushings are worn and need replace-	2.	Replace the drum bushings.
ing drums are powered up.					ment.
Short V-belt lifespan.				1.	Pulleys not aligned correctly.	1.	Align pulleys (see Page 31).
				2.	Improperly tensioned.	2.	Properly tension V-belts (see Page 27).
Machine	lacks	power;		1.	V-belts loose.	1.	Tighten V-belts (see Page 27).
drums stop turning		under		2.	Too much pressure on pressure plates.	2.	Raise the pressure plates (Page 35).
load.
Feed belt slips under load.				1.	Feed belt is too loose.	1.	Tension feed belt (see Page 32).
				2.	Too much load.	2.	Decrease load.
Feed belt tracks to one				1.	Feed belt tracking is incorrect.	1.	Track the feed belt so it runs straight (see
side or hits the feed table							Page 31).
mounts.
Excessive snipe.				1.	Lack of outfeed support.	1.	Set up an outfeed table or have someone
							catch the workpiece as it comes out.
				2.	Too much pressure from pressure plates.	2.	Raise the pressure plates (Page 35).
				3.	Too much pressure from the rear pressure	3.	Raise the rear pressure plate (Page 35).
					plate.
Workpiece	kicks	out	of	1.	Not enough pressure from the pressure	1.	Lower the pressure plates (Page 35).
sander.					plates.
Sandpaper tears off drums				1.	Nail/staple in workpiece.	1.	Sand only clean workpieces.
during operation.				2.	Sandpaper not tightened or fastened cor-	2.	Install the sandpaper correctly (see Page
					rectly.		22).
Table elevation controls are				1.	Table lift screws are dirty or loaded with saw-	1.	Clean and re-grease table lift screws (see
stiff and hard to adjust.					dust.		Page 26).
				2.	Chain idler sprocket cap screws have been	2.	Adjust the cap screws on the idler sprocket
					over tightened.		so it can spin freely.
				3.	Elevation handle helical gear is dirty or	3.	Clean and re-grease the helical gear (see
					loaded with sawdust.		Page 26).
G0458 18" Open End Belt/Drum Sander							-29-