Craftsman 137.224320 - Manual (Page 20)

TROUBLESHOOTING
TROUBLESHOOTING GUIDE
A WARNING
To avoid injury from an accidental start, turn the switch OFF and always remove the plug from the power source
before making any adjustments.
Ail electrical or mechanical repairs should be done only by qualified service technicians. Contact the nearest
Sears Service Center,
GENERAL
Problem Probable Cause Remedy
Blade does not run in the
center of the 1, Not tracking properly. 1. Adjust tracking. See ASSEMBLY AND ADüUSTMENTS
section “BLADE TRACKING”.
upper wheel. 2. Defective blade. 2. Replace blade.
Band saw slows down
when cutting. 1. Belt too loose.
2. Cutting too small a radius.
3. Dull blade.
4. Overloading motor.
1. Adjust belt tension. See ASSEMBLY AND
ADJUSTMENTS section “BLADE TENSION".
2. Stop feeding, back up the material slightly, until the
band saw speeds up.
3. Replace blade.
4. Slow down, you are trying to cut too fast. See
“MOTOR TROUBLESHOOTING GUIDE”.
Blades braking. 1, Too much tension on
the blade.
2. Kink in the blade caused by
cutting too small a radius or
turning the material too fast
when cutting.
1. Adjust tension. See ASSEMBLY AND
ADJUSTMENTS section "BLADE TENSION"
2. Use correct cutting technique.
See OPERATION section “GENERAL CUTTING”.
Blade dulls too quickly. 1. Blade guides set too close to
the teeth.
2. Cutting incorrect material.
1, Adjust upper and lower blade guides.
2. See OPERATION section “BLADE SELECTION”.
Band saw vibrates. 1. Too much tension on
motor belt.
1. Adjust according to ASSEMBLY AND
ADJUSTMENTS section, “INSTALL THE BELT',
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