With the battery removed and the chuck empty, turning the sleeve rotates the spindle and motor freely instead of providing enough lock to tighten or loosen the chuck by hand.

With the battery removed and the chuck empty, turning the 1. Remove the battery and test the spindle lock only with an empty chuck.

• FM-24: Fm 10 1

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

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