Troubleshooting Guide - Craftsman 137.21236 User Manual

WARNING
!
To avoid injury from accidental starting, always turn switch OFF and unplug the tool before
moving, replacing the blade or making adjustments.
TROUBLESHOOTING GUIDE - MOTOR
PROBLEM PROBLEM CAUSE
Brake does not 1. Motor brushes not sealed or lightly
stop the blade
within 6 seconds. 2. Motor brake overheated from use
3. Arbor bolt loose.
4. Brushes cracked, damaged, etc.
5. Other.
Motor does not 1. Limit switch failure
start 2. Brush worn.
3. Fuse blown or circuit breaker
Brush spark 1. Brush worn.
when switch 2. Other.
released.
TROUBLESHOOTING GUIDE - SAW OPERATION
PROBLEM PROBLEM CAUSE
Blade hits table. 1. Misalignment.
Angle of cut not 1. Miter table unlocked.
accurate. Can 2. Sawdust under table.
not adjust miter.
Cutting arm 1. Loose pivot points.
wobbles.
Cutting arm will 1. Pivot bolt too tight.
not fully raise, 2. Pivot spring not replaced properly
or blade guard
won't fully close. 3. Sawdust build-up.
Blade binds, 1. Improper operation.
jams, burns 2. Dull or warped blade.
wood. 3. Improper blade size.
4 Wood is moving during cut.
Saw vibrates or 1. Saw blade not round / damaged /
shakes.
2. Arbor bolt loose.
TROUBLESHOOTING GUIDE - LASER GUIDE
PROBLEM PROBLEM CAUSE
The laser guide 1. The batteries are dead.
fails to turn on. 2. The battery contacts need

TROUBLESHOOTING GUIDE

sticking.
of defective or wrong size blade
or rapid ON/OFF cycling.
tripped on home panel.
after service.
loose.
adjustment.
SUGGESTED CORRECTIVE ACTION
1. Inspect/clean/replace brushes. See
MAINTENANCE section.
2. Use a recommended blade. Let cool
down. See REMOVING OR INSTALLING
THE BLADE section.
3. Retighten. See REMOVING OR
INSTALLING THE BLADE section.
4. Replace brushes.
5. Contact Sears Service Center.
1. Replace limit switch.
2. Replace brushes. See MAINTENANCE
section.
3. Verify there is electrical power at the
outlet.
1. Replace Brushes. See MAINTENANCE
section.
2. Contact Sears Service Center.
SUGGESTED CORRECTIVE ACTION
1. See ADJUSTMENT - Cutting Head
Downward Travel Adjustment section.
1. See OPERATION - Miter Angle
Adjustment section.
2. Vacuum or blow out dust. WEAR EYE
PROTECTION.
1. Contact Sears Service Center.
1. Loosen pivot bolt lock nut (see adjustment
section).
2. Contact Sears Service Center.
3. Clean and lubricate moving parts.
1. See BASIC SAW OPERATION section.
2. Replace or sharpen blade.
3. Replace with 10 in. diameter blade.
4. Use hold down clamp to secure workpiece
to table.
1. Replace blade.
2. Tighten arbor bolt.
SUGGESTED CORRECTIVE ACTION
1. Replace with new AAA batteries.
2. Reload the batteries and make certain
that they make solid contact to the battery
spring.
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