failure mode
FM-16: FM-16 BIT WILL NOT RELEASE, OR A SHORT OR BROKEN BIT IS TRAPPED
The chuck collar pulls but the bit will not come out, or a short or broken bit piece is recessed inside the chuck.
Diagnostic overview
The chuck collar pulls but the bit will not come out, or a short or broken bit piece is recessed inside the chuck.
Likely Root Causes
- Bit is shorter than 2 inches and sits too deep
- Shank is burred, twisted, or impact-swaged
- Detent remains loaded by side pressure
- Collar, ball, or spring is damaged
Quick Checks
- The old bit is removed safely and a correct replacement locks and releases normally.
Repair Preview
1.
This is a preview of the troubleshooting guidance included in the full repair manual.
Common Fixes
- Eye protection
Related symptoms
The collar pulls, but the bit will not come out, or a short/broken piece is recessed in the chuck.
The collar pulls, but the bit will not come out, or a 1. Remove the pack; point the nose down; hold the collar open and pull only a
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.