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.

진단 개요

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

관련 증상

  • 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.

전체 매뉴얼에 포함

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

공개 페이지에는 미리보기만 표시됩니다. 전체 수리 단계, 다이어그램 및 검증 절차를 다운로드하려면 전체 매뉴얼을 구매하세요.

FixBeforeBuy

Trusted repair guides, error codes, symptoms, and manuals before you replace your equipment.

Navigation

For technicians

Need the full step-by-step manual? Purchase securely on FixBeforeBuy and download your PDF after Stripe payment.

© 2026 FixBeforeBuy. Repair smarter before you buy.