failure mode

FM-12: FM-12 CHAIN MOVES BUT WILL NOT CUT BECAUSE IT IS INSTALLED BACKWARD

Chain moves around the guide bar but does not cut because it is installed backward.

Обзор диагностики

Chain moves around the guide bar but does not cut because it is installed backward.

Связанные симптомы

  • The chain travels around the bar but only rubs the wood, produces almost no chips, and will not enter the cut.

    The chain travels around the bar but only rubs the wood, 1. Remove the battery and inspect the chain: cutters along the top of the guide bar

  • Chain moves but does not cut

    Chain moves but does not cut Confirm the top cutters face forward; use FM-12 or FM-13.

Включено в полное руководство

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

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