Craftsman 137.21241 - Manual (Page 25)

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TROUBLESHOOTING GUIDE
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 SUGGESTED CORRECTIVE ACTION
Brake does not
stop the blade
within 6 seconds.
1. Motor brushes not sealed or lightly
sticking.
2. Motor brake overheated from use
of defective or wrong size blade
or rapid ON/OFF cycling.
3. Arbor bolt loose.
4. Brushes cracked, damaged, etc.
5. Other.
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.
Motor does not
start
1. Limit switch failure
2. Brush worn.
3. Fuse blown or circuit breaker
tripped on home panel.
1. Replace limit switch.
2. Replace brushes. See MAINTENANCE
section.
3. Verify there is electrical power at the
outlet.
Brush spark
when switch
released.
1. Brush worn.
2. Other.
1. Replace Brushes. See MAINTENANCE
section.
2. Contact Sears Service Center.
TROUBLESHOOTING GUIDE - SAW OPERATION
PROBLEM PROBLEM CAUSE SUGGESTED CORRECTIVE ACTION
Blade hits table. 1. Misalignment. 1. See ADJUSTMENT - Cutting Head
Downward Travel Adjustment section.
Angle of cut not
accurate. Can
not adjust miter.
1. Miter table unlocked.
2. Sawdust under table.
1. See OPERATION - Miter Angle
Adjustment section.
2. Vacuum or blow out dust. WEAR EYE
PROTECTION.
Cutting arm
wobbles.
1. Loose pivot points. 1. Contact Sears Service Center.
Cutting arm will
not fully raise,
or blade guard
won’t fully close.
1. Pivot bolt too tight.
2. Pivot spring not replaced properly
after service.
3. Sawdust build-up.
1. Loosen pivot bolt lock nut (see adjustment
section).
2. Contact Sears Service Center.
3. Clean and lubricate moving parts.
Blade binds,
jams, burns
wood.
1. Improper operation.
2. Dull or warped blade.
3. Improper blade size.
4 Wood is moving during cut.
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.
Saw vibrates or
shakes.
1. Saw blade not round / damaged /
loose.
2. Arbor bolt loose.
1. Replace blade.
2. Tighten arbor bolt.
WARNING
!
TROUBLESHOOTING GUIDE - LASER GUIDE
PROBLEM PROBLEM CAUSE SUGGESTED CORRECTIVE ACTION
The laser guide
fails to turn on.
1. The batteries are dead.
2. The battery contacts need
adjustment.
1. Replace with new AAA batteries.
2. Reload the batteries and make certain
that they make solid contact to the battery
spring.