FM-11: FM-11 MOTOR RUNS BUT THE CHAIN DOES NOT MOVE

FM-11 MOTOR RUNS BUT THE CHAIN DOES NOT MOVE

• Chain is off the drive sprocket
• Drive links are jammed in the bar groove
• Broken chain or damaged drive links
• Stripped or broken drive sprocket
• Internal gearbox failure

1. POST-REPAIR CHECK

• Motor runs, chain does not

  Motor runs, chain does not Inspect chain engagement, sprocket, bar groove, and gearbox through FM-11.

• The motor can be heard, but the chain remains stationary or only twitches while the trigger is held.

  The motor can be heard, but the chain remains 1. Release the trigger, remove the battery, and do not keep powering a stationary

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

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