Harbor Freight Tools 98198 Sanding Operations Problem Possible Causes Likely Solutions

Troubleshooting Cont.

Problem		Possible Causes		Likely Solutions
	1.	Motor or component is loose.	1.	Inspect for stripped/damaged bolts/nuts,
				replace/re-tighten with thread locking fluid.
	2.	V-belts are worn or loose.	2.	Inspect belts, replace and re-tension.
	3.	Motor fan is rubbing on fan	3.	Replace dented fan cover/damaged fan.
		cover.
Machine has	4.	Pulley is loose.	4.	Remove pulley, replace shaft, pulley, set-
				screw and key as required and realign.
vibration or noisy
	5.	Machine is incorrectly mounted	5.	Machine has loose anchor studs in floor, or
operation.
		to the floor.		is sitting on uneven floor. Replace/tighten or
				relocate as soon 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
Problem		Possible Causes		Likely Solutions
Vibration when	1.	Loose drum bearings (215)	1.	Tighten drum bearings.
sanding	2.	Worn drum bearings (215)	2.	Replace drum bearings.
Grinding,	1.	Drum bearings lack sufficient oil.	1.	Oil the drum bearings.
screeching, or	2.	Drum bushings (206) are worn	2.	Replace the drum bushings.
rubbing noise		and need replacing.
when sanding
drum is
powered up.
Short V-belt	1.	Pulleys not aligned correctly.	1.	Align pulleys to be on same plane.
lifespan	2.	Improperly tensioned.	2.	Properly tension V-belts.
Machine lacks	1.	V-belts are loose.	1.	Tighten V-belts
power; drum	2.	Too much pressure on pressure	2.	Raise the pressure plates.
stops turning		plate (84).
under load.
Feed belt slips	1.	Feed belt is too loose.	1.	Tension the V-belts.
under load.	2.	Too much load.	2.	Decrease the load.
Feed belt tracks	1.	Feed belt tracking is incorrect.	1.	Adjust feed belt tracking.
to one side and
hits the feed table
mounts.

1.Lack of outfeed support. 1. Set up an outfeed table or have someone stand along open side of sander and retrieve the workpiece as it comes out.

Excessive snipe.	2.	Too much pressure from	2.	Lower the Pressure Plate.
		Pressure Plate (84).
	3.	Too much pressure from the rear	3.	Lower the rear of Pressure Plate.
		of pressure plate (84).
Workpiece kicks	1.	Not enough pressure from the	1.	Raise the Pressure Plate.
out of sander.		pressure plate (84).

SKU 98198 For technical questions, please call 1-800-444-3353. Page 21