Troubleshooting Guide - Delta 28-248 Instruction Manual

In spite of how well a band saw is maintained, problems can occur. The following troubleshooting
guide will help you solve the more common problems:
Trouble: SAW WILL NOT START.
Probable Cause
1. Switch cord / motor cord not plugged in.
2. Fuse blown or motor reset tripped.
3. Cord damaged.
Trouble: BREAKER OR MOTOR KICKS OUT FREQUENTLY.
Probable Cause
1. Extension cord too light or too long.
2. Feeding stock too fast.
3. Blade in poor condition (dull, warped, gummed).
4. Low voltage supply.
Trouble: BAND SAW VIBRATES EXCESSIVELY.
Probable Cause
1. Machine not mounted securely to stand.
2. Stand on uneven surface.
3. Worn belt.
4. Pulley not aligned.
5. Motor not fastened securely.
Trouble: BAND SAW DOES NOT COME UP TO SPEED.
Probable Cause
1. Low voltage due to improper extension cord size.
2. Low voltage.
3. Motor wired for incorrect voltage.
Trouble: BLADES BREAK.
Probable Cause
1. Blade not tensioned properly.
2. Blade guides improperly adjusted.
3. Blade support bearing improperly adjusted.
4. Blade wheel tracking adjustment improperly set.
5. Bad weld on blade.
6. Worn tires.
7. Forcing wide blade around short radius.
8. Dull blade or insufficient set.
9. Upper blade guide set too high.
10. Continuous running of machine when not actually
cutting.

TROUBLESHOOTING GUIDE

Remedy
1. Plug in switch cord / motor cord.
2. Replace fuse or push motor reset button.
3. Have cord replaced.
Remedy
1. Replace with adequate size cord.
2. Feed stock more slowly.
3. Clean or replace blade.
4. Contact an electrician.
Remedy
1. Tighten all mounting hardware.
2. Reposition on flat level surface.
3. Replace belt.
4. Adjust motor pulley.
5. Tighten all mounting hardware.
Remedy
1. Replace with adequate size cord.
2. Contact an electrician.
3. Rewire motor for correct voltage.
Remedy
1. Adjust blade tension.
2. Check and adjust blade guides.
3. Adjust blade support bearing.
4. Check and adjust blade tracking.
5. Replace the blade.
6. Replace tires.
7. Change to a narrower blade.
8. Replace blade.
9. Set upper blade guide within 1/8" of workpiece.
10. Turn off machine when not performing cutting
operation.
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