Harbor Freight Tools 98198 Replacing V-belts, Pulley Alignment, Feed Belt Tracking

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Replacing V-belts

1.Disconnect the Drum Sander from the electrical outlet.

2.Open the Side Cover (82).

3.To replace the variable-speed Drive Belt (97), loosen the cap screw se- curing the variable-speed Pulley (26, 28) before loosening the motor mount cap screws.

4.Loosen the motor mount cap screws and the Pan Head screw (257) secur- ing the tensioner roller.

5.Remove the cap screws securing the Bearing Bracket (6) and rotate the Bearing Bracket 90°.

6.Lift the motor, with a pry bar if neces- sary.

7.To replace the variable-speed Drive Belt (97), remove the Hex Soc Hd Scr (16) securing the pulley, and remove the outer half of the pulley (26).

8.Compress the Spring (20) behind the inner half of the Variable Speed Pulley (19). Slide the outer half of the pulley over the shaft (23) and Key (31) and thread in the Hex Soc Hd Scr.

9.Install new Feed (99) and Drive V-belts (97), re-attach the Bearing Bracket, and tension according to instructions.

10.Tighten the variable speed pulley cap screw and replace the Side Cover (82).

Pulley Alignment

1.Disconnect Drum Sander from the electrical outlet.

2.Open the Pulley Cover (108).

3.If possible put a straightedge against the pulley faces or sight downward across the motor pulley and the feed pulley.

4.If the pulleys are not aligned on the same plane, one of them needs to be adjusted.

5.Moving a pulley requires removal of the V-belts.

a.Loosen the Set Screw on the Motor

Pulley and align the Motor Pulley with the Feed Belt Pulley.

b.Tighten the set screws, replace the V-belts, and recheck alignment again.

c.If the Sanding Belt Pulley (43) needs to be aligned, loosen its Set Screw and adjust until it too is aligned with the Motor Pulley (98).

d.Repeat the adjustments until the pul- ley pairs are on the same plane with each other.

e.Replace the Pulley Cover (108).

Feed Belt Tracking

Feed belt tracking adjustment is a process taking trial-and-error to perform.

1.Turn the Feed Belt (165) “ON” and observe the tracking. If the feed belt moves to one side or the other, stop the belt immediately.

2.If the Feed Belt tracks toward one side, loosen the lock nut on that side and tension the adjustment screw until the belt tracks in the opposite direction. If the belt continues to track to one side, turn the Drum Sander

SKU 98198

For technical questions, please call 1-800-444-3353.

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Contents For technical questions or replacement parts, please call Distributed exclusively by Harbor Freight ToolsContents General Power Tool Safety Save This ManualGfci reduces the risk of electric shock Drum Sanding Operation Safety Warnings For technical questions, please call Grounding Plug and OutletSymbology Extension CordsSpecifications List of contentsAssembly UnpackingFinal Assembly Tool Set UpOperating Instructions MountingWork Piece and Work Area Set Up General Operating InstructionsDepth of cut Dust BagSpeed adjustment Sandpaper grit selection chart Grit ClassSandpaper replacement Tools supplied Sanding tipsCleaning the machine LubricationSanding Belts Belt TensioningFor technical questions, please call Maintenance Servicing Cleaning and MaintenancePulley Alignment Replacing V-beltsFeed Belt Tracking Feed Belt Replacement Conveyor Table AdjustmentsCheck rear of the Pressure Plate Adjustment Check front of the Pressure Plate adjustmentTo adjust the rear Pressure Plate To adjust the front of the Pressure PlateMotor Thermal Circuit Breaker White Black GroundTroubleshooting Problem Possible Causes Likely SolutionsSanding Operations Problem Possible Causes Likely Solutions Please Read the Following Carefully Part Part Name BELTA46 Head Cover Handle Bushing Assembly Diagram Limited 1 year / 90 Day warranty Record Product’s Serial Number Here