Troubleshooting Guide - Craftsman 137.224240 Operator's Manual

To avoid injury from an accidental start, turn the switch OFF and always remove the plug from the power source before
making any adjustments.
.
All electrical or rne(;hanical repairs should be done only by qualified service technicians, Contact the nearest Sears
Service Center.
GENERAL
Problem
Blade does not run in the
center of the
upper wheel.
Band saw slows down
when cutting.
Blades braking
Blade dulls too quickly.
Band saw vibrates.
Probable Cause
1. Not tracking properly.
2. Defective blade.
1. Belt too loose.
2. Cuttirlg too small a radius.
!
3. Ddlll blade.
i
4. O_'erloading motor.
1. Too much tension on
the blade.
2. Kink in the blade caused by
cutting too small a radius or
turning thr_'_aterial too fast
when cutting.
1. Blade guides set too close to
the teeth.
2. Cutting incorrect material.
1. Too much tensionon
motor belt.
Remedy
1. Adjust tracking. See ASSEMBLY AND ADJUSTMENTS
section "BLADE TRACKING".
2. Replace blade.
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, trying to cut too fast. See "MOTOR
TROUBLESHOOTING GUIDE" on page 23.
1. Adjust tension. See ASSEMBLY AND
ADJUSTMENTS section "BLADE TENSION"
2. Use correct cutting technique.
See OPERATION section "GENERAL CUTTING".
1. Adjust upper and lower blade guides.
2. See OPERATION section "BLADE SELECTION".
1. Adjust according to ASSEMBLY AND
ADJUSTMENTS section, "INSTALL THE 'BELl"'.