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

 

PROBLEM CAUSE

 

SUGGESTED CORRECTIVE

 

 

ACTION

 

 

 

 

Brake does

1.

Motor brushes not sealed

1.

Inspect/clean/replace brushes.

not stop blade

 

or lightly sticking.

 

See MAINTENANCE section.

within 10

2.

Motor brake overheated

2.

Use a recommended blade. Let

seconds.

 

from use of defective or

 

cool down. See REMOVING

 

 

wrong size blade or rapid

 

OR INSTALLING THE BLADE

 

 

ON/OFF cycling.

 

section.

 

3.

Arbor bolt loose.

3.

Retighten. See REMOVING

 

4.

Brushes cracked,

 

OR INSTALLING THE BLADE

 

 

damaged, etc.

 

section.

 

5.

Other.

4.

Replace brushes.

 

 

 

5.

Contact Sears Service Center.

 

 

 

 

 

Motor does

1.

Limit switch failure

1.

Replace limit switch.

not start

2.

Brush worn.

2.

Replace brushes. See

 

3.

Fuse blown or circuit

 

MAINTENANCE section.

 

 

breaker tripped on home

3.

Verify there is electrical power at

 

 

panel.

 

the outlet.

 

 

 

 

 

Brush spark

1.

Brush worn.

1.

Replace Brushes. See

when switch

2. Other.

 

MAINTENANCE section.

released.

 

 

2.

Contact Sears Service Center.

 

 

 

 

 

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Craftsman 137.21194 operating instructions Troubleshooting Guide