failure mode

FM-10: FM-10 A SECURED BIT SLIPS, WOBBLES, OR RUNS OUT AT NO LOAD

FM-10 A SECURED BIT SLIPS, WOBBLES, OR RUNS OUT AT NO LOAD

Diagnostic overview

FM-10 A SECURED BIT SLIPS, WOBBLES, OR RUNS OUT AT NO LOAD

Likely Root Causes

  • Bit is bent, damaged, oily, or wrong for the jaws
  • Bit is shallow, off center, or clamped on its flutes
  • Jaws are dirty, uneven, worn, or damaged
  • Chuck is loose, damaged, or misaligned on the spindle
  • Spindle, bearing, or gearbox output has runout

Quick Checks

  1. A straight bit stays secure and rotates concentrically at both speed ranges.

Repair Preview

  1. 1.
  2. Center-lock the trigger, remove the battery, and discard any bent bit.

This is a preview of the troubleshooting guidance included in the full repair manual.

Common Fixes

  • approved charger

Related symptoms

  • A bit that appears clamped slips in use or visibly wobbles in a no-load test.

    A bit that appears clamped slips in use or visibly 1. Center-lock the trigger, remove the battery, and discard any bent bit.

Included in the full manual

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

Public pages show a preview only. Purchase the full manual to download complete repair steps, diagrams, and verification procedures.

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