FM-13: FM-13 THE CARBON BRUSHES ARE WORN, STICKING, OR ARCING HEAVILY

FM-13 THE CARBON BRUSHES ARE WORN, STICKING, OR ARCING HEAVILY

• One or both carbon brushes are worn short
• Brush sticks in a dirty or damaged holder
• Brush spring or lead is damaged
• Brush orientation or seating is incorrect

1. The drill runs smoothly with normal brush sound, stable power, and no heavy arcing.

1.

This is a preview of the troubleshooting guidance included in the full repair manual.

• Correct screwdriver

• Power is sporadic or reduced, unusual motor noise appears, or brush sparking is excessive.

  Power is sporadic or reduced, unusual motor noise 1. Center-lock the trigger, remove the battery, and let the motor cool fully.

• root cause analysis
• tools needed
• step-by-step repair procedure
• diagrams
• exploded views
• post-repair checks

Public pages show a preview only. Purchase the full manual to download complete repair steps, diagrams, and verification procedures.