FM-22: THE CHUCK WILL NOT OPEN OR CLOSE BY HAND, OR A BIT CANNOT BE RELEASED

THE CHUCK WILL NOT OPEN OR CLOSE BY HAND, OR A BIT CANNOT BE RELEASED

• Dust, chips, corrosion, or a damaged bit binds the jaws
• The bit is side-loaded or bottomed incorrectly
• Chuck sleeve, jaw scroll, or automatic spindle lock is damaged
• Impact or overtightening distorted the chuck

1. The jaws open and close smoothly and the bit releases by hand, or the seized chuck is removed from owner service.

1. Turn the sleeve by hand through a short open-close range while keeping fingers clear of the bit and jaws.
2. If the sleeve or jaws remain seized, or the bit cannot be released safely, route the chuck and spindle lock to qualified service.
3. Center the direction button, remove the battery, support the tool, and support any sharp or heavy bit so it cannot fall.
4. Brush loose dry debris from the jaw openings and relieve any side load without striking, heating, oiling, or gripping the chuck with powered motion.

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

• With the battery removed, the keyless chuck sleeve or jaws remain seized, or a clamped bit cannot be released by normal hand rotation.

  With the battery removed, the keyless chuck sleeve or jaws 1. Center the direction button, remove the battery, support the tool, and support any

• 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.