symptom
Speed dial will not turn through its range
With power removed, the speed dial binds or cannot travel through its marked range.
What this symptom means
With power removed, the speed dial binds or cannot travel through its marked range.
Likely Root Causes
- Packed dust around the dial
- Impact damage to dial or top cover
- Dial is pinched by housing distortion
- Internal speed-control mechanism fault
Quick Checks
- The dial moves smoothly through the complete range.
Repair Preview
- Remove the battery and dry-brush the gap around the speed dial.
- - Turn the dial gently through its range
- Inspect the top cover for impact distortion that contacts the dial.
- If free travel is not restored, keep the tool out of service for control repair.
This is a preview of the troubleshooting guidance included in the full repair manual.
Related failure modes
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.
Related symptoms and error codes
Related models
Common symptoms
- No response when the switch is set to I
- Sander stops and restarts with the switch left at I
- On/off switch travel is blocked
- Powered motion continues after the switch is set to O
- Battery will not slide fully onto the tool rails
- Battery seats but will not latch
- Latched battery will not release
- Pad speed does not change across the dial range