FM-15: FM-15 CHAIN JUMPS OFF OR DERAILS DURING USE

Chain jumps off or derails from the guide bar during use, causing unsafe operation.

• Chain was too loose
• Worn or damaged drive links
• Bent, pinched, or badly worn guide-bar groove
• Damaged drive sprocket
• Cover, tensioner, or locking knob did not hold

1. tests.

1.

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

• The saw chain leaves the guide-bar groove, hangs from the bar, or comes off the drive sprocket.

  The saw chain leaves the guide-bar groove, hangs from 1. Release the trigger, remove the battery, let the chain stop and cool, and do not

• 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.