FM-13: FM-13 THE DRILL GRINDS, KNOCKS, VIBRATES, OR HAS SPINDLE PLAY

FM-13 THE DRILL GRINDS, KNOCKS, VIBRATES, OR HAS SPINDLE PLAY

• Bit is bent, loose, or off-center
• Chuck is loose, damaged, or contaminated
• Spindle or front bearing is worn or bent
• Gear or clutch teeth are chipped or dry
• Housing, motor, or gearcase fasteners are loose or cracked

1. The empty chuck and a straight bit turn smoothly without play.

• The drill makes abnormal grinding or knocking, vibrates strongly, or the chuck and spindle have play.

  The drill makes abnormal grinding or knocking, vibrates 1. Center-lock, remove the pack and bit, and hand-turn the empty chuck.

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

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