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-58-
W1770 21" Bandsaw w/Foot Brake
SERVICE
PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION
Machine slows when oper-
ating.
1. Feeding workpiece too fast.
2. Blade is dull.
3. Brake is stuck or dragging on
blade.
1. Reduce feed rate. See Basic Cutting Tips on Page
34.
2. Replace/sharpen blade (Page 43).
3. Adjust foot brake.
Ticking sound when the
saw is running.
1. Blade weld contacting support
bearing.
2. Blade weld may be failing.
1. Use file or stone to smooth and round the back of
the blade.
2. Inspect and replace blade if necessary (Page 43).
Blade contacting table
insert.
1. Excessive side pressure when cut-
ting.
2. Table improperly adjusted.
1. Reduce side pressure.
2. Adjust table (Page 27).
Vibration when cutting. 1. Loose or damaged blade.
2. Blade is tracking incorrectly.
3. Blade tension is loose.
1. Tighten or replace blade. See Page 43 or 22
.
2. Fix blade tracking (Page 17).
3. Fix blade tension (Page 22).
Burn marks on the edge of
the cut.
1. Too much side pressure when feed-
ing workpiece.
2. Blade too wide for size of radius
being cut.
1. Feed workpiece straight into the blade. See Basic
Cutting Tips on Page 34.
2. Install a smaller width blade/increase blade tension.
See Page 22 or 43.
Machine has vibration or
noisy operation when run-
ning.
1. Blade weld hits guides or teeth are
broken.
2. Bent or worn out blade.
3. Motor or component is loose.
4. V-belt worn or loose.
5. Motor fan is rubbing on fan cover.
6. Pulley is loose.
7. Machine is incorrectly mounted or
sits unevenly on floor.
8. Motor bearings are at fault.
9. Worn arbor bearings.
10. Wheels not coplanar/aligned cor-
rectly.
11. Wheels out of balance.
1. Replace blade (Page 43).
2. Replace blade (Page 43).
3. Inspect/replace stripped or damaged bolts/nuts,
and re-tighten with thread locking fluid.
4. Inspect/replace belts with matched set (Page 48).
5. Replace dented fan cover and loose/damaged fan.
6. Realign/replace shaft, pulley, setscrew, and key as
required.
7. Adjust the feet on the bottom of the stand; relocate
machine.
8. Test by rotating shaft—rotational grinding/loose
shaft requires bearing replacement.
9. Check/replace arbor bearings.
10. Adjust wheel alignment to coplaner (Page 52).
11. Replace wheels.
Rough or poor quality
cuts.
1. Feeding workpiece too fast.
2. Tracking and tension incorrect.
1. Reduce feed rate. See Basic Cutting Tips on Page
34.
2. Fix tracking and tension (see Page 17 and 22).
Sawdust buildup inside
cabinet.
1. Clogged dust port.
2. Low CFM (airflow) from dust collec-
tion system.
1. Clean out dust port.
2. Three options:
—Check dust lines for leaks or clogs.
—Move dust collector closer to saw.
—Install a stronger dust collector.
Bladewandersorwon'tfol-
low line of cut.
1. Blade lead. 1. Refer to Blade Lead on Page 36.
Brake does not slow or stop
machine.
1. Bad shoes/pad is worn out.
2. Limit switch is defective.
1. Replace brake pad (see Page 51).
2. Replace foot brake limit switch.
Machine Operations