FM-05: The Trigger Or Lock-Off Control Does Not Work Safely

The lock-off will not block or release the trigger, or the trigger sticks or switches unreliably.

• Dry debris obstructs the trigger or lock-off button
• Trigger or lock-off is cracked or impact-damaged
• Trigger return or lock-off spring mechanism has failed
• Liquid or contamination entered the control area
• Internal switch or electronic control fault

1. Qualified repair confirms reliable lock-off, trigger return, start, and stop.

1. Keep the blade clear, release the trigger, and remove the battery.
2. Confirm the trigger returns fully and the lock-off moves freely without force.
3. - Brush away only loose dry debris around the controls - do not add oil or solvent.
4. If either control sticks or operates incorrectly, keep the saw out of service for repair.

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

• Trigger lock-off and trigger
• Trigger and electronic module

• The Trigger Or Lock-Off Control Does Not Work Safely

  The lock-off will not block or release the trigger, or the trigger sticks or switches unreliably.

• 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.