failure mode
FM-19: THE MODE/TORQUE COLLAR WILL NOT TURN OR ALIGN
FM-19
Diagnostic overview
FM-19
Likely Root Causes
- Debris or impact damage blocks the collar
- Collar shell or detent ring is cracked or displaced
- Internal clutch spring or adjustment mechanism is jammed
- Housing or gearbox alignment is damaged
Quick Checks
- The collar moves and holds each selected position, or the adjustment mechanism is routed to service.
Repair Preview
- Turn the collar gently through the numbered settings and drill mode, confirming distinct stable detents without forcing it.
- If it remains stuck, skips positions, or cannot hold alignment, route the collar and internal clutch mechanism to service.
- Remove the battery before turning or inspecting the mode/torque collar.
- Dry-clean the collar seam and inspect the collar, index mark, and front housing for cracks or looseness.
This is a preview of the troubleshooting guidance included in the full repair manual.
Related symptoms
With the battery removed, the clutch collar is physically stuck, cracked, excessively loose, or unable to align a numbered setting or drill mode with the index mark.
With the battery removed, the clutch collar is physically stuck, 1. Remove the battery before turning or inspecting the mode/torque collar.
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.