Harbor Freight Tools 90979 operating instructions Maintenance, To Adjust Belt 37 Tension

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Maintenance

1.Before the first use, and once a month following, put a few drops of oil on the Shaft Sleeve (14) bearings.

2.Check the Belt (37) tension. It must be kept as loose as possible without allowing it to slip on the Driving Pulley (35). Check periodically.

To Adjust Belt (37) Tension:

a.Unplug the Power Cord (15) from its outlet.

b.Remove the four Bolts (1) holding the Top Cover (2) on.

c.Remove the Top Cover (2), Middle Plate (5), and Pads (3, 7), they should come off as one assembly, and set them aside.

d.Loosen all four Round Cap Nuts (21) slightly, enough to allow them to move back and forth.

e.Slide the Motor (17) away from the Power Switch (13) to increase tension, or towards the Power Switch (13) to reduce tension or even remove the Belt (37).

f.Inspect the Belt (37) for cracks, tears, or other damage. Replacement Belts (37) are sold under Sku 93835.

g.Reinstall the Middle Plate (5) and Top Cover (2) using the four Bolts (1).

3.Make sure the exterior of the Rubber Barrel (22) is clean so that it doesn’t slip on the rollers. Wipe it with a soapy cloth, then wipe it clean with a damp cloth, and dry thoroughly. Do not use liquid cleaners or solvents.

REV 01/06

SKU 90979

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

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Contents For technical questions and replacement parts, please call Dual Drum Rotary TumblerSpecifications Safety Warnings and PrecautionsRead all instructions before using this tool Save This ManualSKU For technical questions, please call Unpacking How a Rotary Tumbler WorksOperation LocationII. Before Use III. General UseIV-a. First Grind Approximate Amounts of Abrasive for each BarrelIV. Specific Instructions IV-b. Second Grind IV-c. Pre-polishIV-d. Polish IV-e. BurnishingMaintenance To Adjust Belt 37 TensionParts List Please Read the Following CarefullyAssembly Diagram