failure mode

FM-17: BIT WILL NOT LOCK, PULLS OUT, OR COLLAR WILL NOT SEAT

FM-17 BIT WILL NOT LOCK, PULLS OUT, OR COLLAR WILL NOT SEAT

Diagnostic overview

FM-17 BIT WILL NOT LOCK, PULLS OUT, OR COLLAR WILL NOT SEAT

Related symptoms

  • The bit inserts, but the collar does not return or a firm tug pulls the bit out.

    The bit inserts, but the collar does not return or a firm 1. Remove the pack; pull the collar, insert the correct bit fully, and release.

Included in the full manual

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

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