Troubleshooting - Central Machinery 93507 Assembly And Operating Instructions Manual

7” x 12” metal cutting bandsaw
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Problem
Excessive blade
1. Incorrect Blade tension.
breakage.
2. Incorrect speed or feed.
3. Material loose in vise.
4. Blade rubs on Wheel Flange.
5. Teeth too course for material.
6. Teeth in contact with material before Saw started.
7. Misaligned Guides.
8. Blade too thick for Wheel diameter.
Premature blade
1. Teeth too course.
dulling.
2. Too much blade speed.
3. Inadequate feed pressure.
4. Hard spots or scale in/on material.
5. Work hardening of material.
6. Blade installed backwards.
7. Insufficient Blade tension.
Blade cuts
1. Workpiece not square.
crooked.
2. Feed pressure too great.
3. Guide Bearing not adjusted properly.
4. Inadequate Blade tension.
5. Blade Guides spaced out too much.
6. Dull Blade.
7. Speed incorrect.
8. Blade Guide assembly loose.
9. Blade Guide Bearing assembly loose.
10. Blade tracks too far away from Wheel Flanges.
Blade cuts rough.
1. Too much speed or feed.
2. Blade is too coarse.
Blade is twisting.
1. Cut is binding Blade.
2. Too much Blade tension.
Unusual wear
1. Blade Guides worn.
on side/back of
blade.
2. Blade Guide Bearings not adjusted properly.
3. Blade Guide Bearing Bracket is loose.
Teeth ripping from
1. Teeth too coarse for work.
blade.
2. Too heavy feed or too slow feed.
3. Vibrating workpiece.
4. Teeth filled with debris.
Unit does not turn
1. Improperly adjusted Stop Screw (60). Saw Arm is not
off automatically
pushing power switch off.
when horizontal
cutting is
2. Broken power switch.
completed.
Motor running
1. Blade tension too high.
too hot.
2. Drive Belt tension too high.
3. Blade is too coarse for work.
4. Blade is too fine for work.
5. Gear not aligned properly.
6. Gears need lubrication.
For technical questions, please call 1-800-444-3353.
SKU 93507

TROUBLEShOOTING

Possible Cause(s)
Possible Solution
1. Tighten Blade tension. (See page 18.)
2. Check manual for correct Blade speed. (See page 16.)
3. Clamp work securely. (See page 16.)
4. Adjust blade tracking. (See page 17.)
5. Check manual for recommended Blade type. (See page 25.)
6. Allow Blade to spin up to full speed before feeding material into it.
7. Adjust Guides. (See page 17.)
8. Use thinner Blade. (See page 25.)
1. Use finer tooth Blade. (See page 25.)
2. Try next lower speed. (See page 14.)
3. Decrease spring tension on side of Saw. (See page 18.)
4. Reduce speed, increase feed pressure. (See pages 14 and 18.)
5. Increase feed pressure by reducing spring tension. (See page 18.)
6. Remove Blade. Then properly install Blade. (See pages 24 and 25.)
7. Increase tension to proper level. (See page 18.)
1. Adjust Vise so it is square with Blade. Always clamp work tightly in Vise.
(See pages 15 and 16.)
2. Reduce pressure by increasing spring tension on side of Saw. (See page 18.)
3. Adjust Guide Bearing to .001" greater than maximum thickness, including the weld
of the Saw Blade. (See page 17.)
4. Increase Blade tension a little at a time. (See page 18.)
5. Move Guide as close to work as possible. (See page 19.)
6. Replace Blade. (See pages 24 and 25.)
7. Check manual for recommended speeds. (See page 14.)
8. Tighten Blade Guide assembly. (See page 19.)
9. Tighten Blade Guide Bearing assembly. (See page 17.)
10. Re-track Blade according to operating instructions. (See page 17.)
1. Reduce speed and feed. (See pages 14 and 18.)
2. Replace with finer Blade. (See pages 24 and 25.)
1. Decrease feed pressure. (See page 18.)
2. Decrease Blade tension. (See page 18.)
1. Replace Blade Guides. (See page 17.)
2. Adjust according to operator's manual. (See page 17.)
3. Tighten Blade Guide Bearing Bracket. (See page 17.)
1. Use finer tooth Blade. (See page 25.)
2. Increase feed pressure and/or speed. (See pages 14 and 18.)
3. Clamp work securely. (See pages 15 and 16.)
4. Use coarse tooth Blade or brush to remove debris. (See page 25.)
1. Lower the Saw Arm completely. Tighten the Stop Screw until the Saw Arm prevents
the power switch from turning on.
2. Have a qualified technician repair/replace power switch.
1. Reduce tension on Blade. (See page 18.)
2. Reduce tension on Drive Belt. (See page 25.)
3. Use finer Blade. (See page 25.)
4. Use coarser Blade. (See page 25.)
5. Adjust Gears so that Worm is in center of Gear. (See page 26.)
6. Check Oil Bath. (See page 26.)
Page 29

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