Harbor Freight Tools 93507 Troubleshooting, Problem Possible Causes Possible Solution

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TROUBLESHOOTING

Problem

 

Possible Cause(s)

 

Possible Solution

Excessive blade

1. Incorrect Blade tension.

1.

Tighten Blade tension. (See page 18.)

breakage.

 

 

 

 

 

2.

Incorrect speed or feed.

2.

Check manual for correct Blade speed. (See page 16.)

 

3.

Material loose in vise.

3.

Clamp work securely. (See page 16.)

 

4.

Blade rubs on Wheel Flange.

4.

Adjust blade tracking. (See page 17.)

 

5.

Teeth too course for material.

5.

Check manual for recommended Blade type. (See page 25.)

 

6.

Teeth in contact with material before Saw started.

6.

Allow Blade to spin up to full speed before feeding material into it.

 

7.

Misaligned Guides.

7.

Adjust Guides. (See page 17.)

 

8.

Blade too thick for Wheel diameter.

8.

Use thinner Blade. (See page 25.)

 

 

 

 

Premature blade

1. Teeth too course.

1.

Use finer tooth Blade. (See page 25.)

dulling.

 

 

 

 

 

2.

Too much blade speed.

2.

Try next lower speed. (See page 14.)

 

3.

Inadequate feed pressure.

3.

Decrease spring tension on side of Saw. (See page 18.)

 

4.

Hard spots or scale in/on material.

4.

Reduce speed, increase feed pressure. (See pages 14 and 18.)

 

5.

Work hardening of material.

5.

Increase feed pressure by reducing spring tension. (See page 18.)

 

6.

Blade installed backwards.

6.

Remove Blade. Then properly install Blade. (See pages 24 and 25.)

 

7.

Insufficient Blade tension.

7.

Increase tension to proper level. (See page 18.)

Blade cuts

1. Workpiece not square.

1.

Adjust Vise so it is square with Blade. Always clamp work tightly in Vise.

crooked.

 

 

 

(See pages 15 and 16.)

 

2.

Feed pressure too great.

2.

Reduce pressure by increasing spring tension on side of Saw. (See page 18.)

 

3.

Guide Bearing not adjusted properly.

3.

Adjust Guide Bearing to .001” greater than maximum thickness, including the weld

 

 

 

 

of the Saw Blade. (See page 17.)

 

4.

Inadequate Blade tension.

4.

Increase Blade tension a little at a time. (See page 18.)

 

5.

Blade Guides spaced out too much.

5.

Move Guide as close to work as possible. (See page 19.)

 

6.

Dull Blade.

6.

Replace Blade. (See pages 24 and 25.)

 

7.

Speed incorrect.

7.

Check manual for recommended speeds. (See page 14.)

 

8.

Blade Guide assembly loose.

8.

Tighten Blade Guide assembly. (See page 19.)

 

9.

Blade Guide Bearing assembly loose.

9.

Tighten Blade Guide Bearing assembly. (See page 17.)

 

10. Blade tracks too far away from Wheel Flanges.

10. Re-track Blade according to operating instructions. (See page 17.)

Blade cuts rough.

1. Too much speed or feed.

1.

Reduce speed and feed. (See pages 14 and 18.)

 

2.

Blade is too coarse.

2.

Replace with finer Blade. (See pages 24 and 25.)

Blade is twisting.

1. Cut is binding Blade.

1.

Decrease feed pressure. (See page 18.)

 

2.

Too much Blade tension.

2.

Decrease Blade tension. (See page 18.)

Unusual wear

1. Blade Guides worn.

1.

Replace Blade Guides. (See page 17.)

on side/back of

 

 

 

 

blade.

2. Blade Guide Bearings not adjusted properly.

2.

Adjust according to operator’s manual. (See page 17.)

 

3.

Blade Guide Bearing Bracket is loose.

3.

Tighten Blade Guide Bearing Bracket. (See page 17.)

Teeth ripping from

1. Teeth too coarse for work.

1.

Use finer tooth Blade. (See page 25.)

blade.

 

 

 

 

 

2.

Too heavy feed or too slow feed.

2.

Increase feed pressure and/or speed. (See pages 14 and 18.)

 

3.

Vibrating workpiece.

3.

Clamp work securely. (See pages 15 and 16.)

 

4.

Teeth filled with debris.

4.

Use coarse tooth Blade or brush to remove debris. (See page 25.)

Unit does not turn

1. Improperly adjusted Stop Screw (60). Saw Arm is not

1.

Lower the Saw Arm completely. Tighten the Stop Screw until the Saw Arm prevents

off automatically

 

pushing power switch off.

 

the power switch from turning on.

when horizontal

 

 

 

 

cutting is

2. Broken power switch.

2.

Have a qualified technician repair/replace power switch.

completed.

 

 

 

 

Motor running

1. Blade tension too high.

1.

Reduce tension on Blade. (See page 18.)

too hot.

 

 

 

 

 

2.

Drive Belt tension too high.

2.

Reduce tension on Drive Belt. (See page 25.)

 

3.

Blade is too coarse for work.

3.

Use finer Blade. (See page 25.)

 

4.

Blade is too fine for work.

4.

Use coarser Blade. (See page 25.)

 

5.

Gear not aligned properly.

5.

Adjust Gears so that Worm is in center of Gear. (See page 26.)

 

6.

Gears need lubrication.

6.

Check Oil Bath. (See page 26.)

SKU 93507

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

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Contents For technical questions, please call Metal Cutting BandsawContents General Safety Rules Product SpecificationsSave this Manual Work AreaPersonal Safety Electrical SafetyTool USE and Care ServiceSpecific Safety Rules Page Grounded Tools Tools With Three Prong Plugs GroundingExtension Cords Double Insulated Tools Tools With Two Prong PlugsSee Figure C, next See Figure CNameplate Extension Cord Length SymbologyFeet 120 or 240 VoltAttach The Wheels Assembly InstructionsUnpacking See Figure F Remove The Shipping BoltAttach The Pulley Cover See Figure H Install The Coolant TankAttach The Tool Stop Rod And Block Figure J Wiring InstructionsSelecting Proper Blade Speeds Using The Quick ViseOperating Instructions Adjusting The Stop Block Adjusting The Quick Vise For An Angle CutConverting The Bandsaw For Vertical Use Adjusting The Blade Guide BearingsSee Figure R, next Adjusting The Blade TrackingSee Figure R See Figure R SKU For technical questions, please callAdjusting The Feed Rate Adjusting The Blade TensionBasic Bandsaw Operation -- Vertical Position Adjusting The Blade Guide BracketsSee Figure T See Figure U, nextFigure U See Figure UBasic Bandsaw Operation -- Horizontal Position See Figure Do not use damaged equipment INSPECTION, MAINTENANCE, and CleaningFigure W See Figure WRemove the old V-Belt 183 from the two Pulleys 184 Figure Y See Figure Z, next SKU For technical questions, please callSee Figure Z Please Read the Following CarefullyProblem Possible Causes Possible Solution TroubleshootingPart Description Qty Parts ListREV 10/06 Assembly Diagram Assembly Diagram Warranty Limited 90 day/1 Year warranty

93507 specifications

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