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For Machines Mfg. Since 8/09 Model SB1020
-35-
TROUBLESHOOTING
Motor stalls
or slows when
operating.
1.
Too much pressure when feeding
workpiece.
1.
Reduce pressure when feeding workpiece.
2.
Workpiece is warped and binding
blade.
2.
Fabricate a jig for better workpiece control.
3.
Blade is dull, wanders, and gets
pinched in the cut.
3.
Replace blade, adjust guides and tracking.
4.
Blade is loose.
4.
Clean wheels and increase blade tension.
5.
Blade is loading up.
5.
Install a blade with more suitable TPI or different
style of teeth.
6.
Blade is not correct for material
being cut.
6.
Use the correct blade for the operation. Refer to
Blade Selection section beginning on Page 24.
7.
Motor overheated.
7.
Let cool, clean motor, and reduce workload.
8.
Motor wired incorrectly.
8.
Review wiring diagram on motor cover; correct wire
connections.
9.
Motor at fault.
9.
Test for shorted windings, bad bearings and repair
or replace.
Workpiece angle
incorrect or out of
square.
1.
Scale not calibrated or loose vise.
1.
Zero fence to blade and realign scale. Tighten any
loose fasteners.
2.
Blade guides are loose or out of
alignment.
2.
Tighten any loose hardware or lock levers. Align the
blade guides (see Page 28).
Symptom Possible Cause Possible Solution
Blade tracks
incorrectly, slips on
wheels, or comes
off wheels.
1.
Blade tension is too loose.
1.
Increase blade tension (see Page 24).
2.
Incorrect blade for bandsaw.
2.
Install correct blade for machine (see Page 24).
3.
Feed rate is too fast.
3.
Reduce feed rate, or decrease blade TPI.
4.
Blade guides need adjustment.
4.
Adjust blade guides (see Page 40).
5.
Blade is bell-mouthed.
5.
Install new blade, and regularly remove tension
from blade when not in use.
6.
Blade is dull, wanders, and gets
pinched in the cut.
6.
Replace blade, re-secure the workpiece from
shifting.
7.
Wheels are loaded with metal
shavings.
7.
Clean wheels.
8.
The blade has insufficient support.
8.
Tighten the blade guide as close to the workpiece as
possible (not less than
1
⁄4").
!