Troubleshooting Guide - Craftsman 137.21239 Operator's Manual

TROUBLESHOOTING GUIDE

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
Brake does 1. Motor brushes not sealed
not stop blade
within 10 2. Motor brake overheated
seconds.
3. Arbor bolt loose.
4. Brushes cracked,
5. Other.
Motor does 1. Limit switch failure
not start 2. Brush worn.
3. Fuse blown or circuit
Brush spark 1. Brush worn.
when switch 2. Other.
released.
PROBLEM CAUSE
or lightly sticking.
from use of defective or
wrong size blade or rapid
ON/OFF cycling.
damaged, etc.
breaker tripped on home
panel.
SUGGESTED CORRECTIVE
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.
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ACTION