failure mode

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.

Обзор диагностики

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

Связанные симптомы

  • 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

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