Panasonic EY7960 Service Manual - Page 6

4 Disassembly and Assembly Instructions 4.1. How to Disassemble Keyless Chuck. Ref. No. 1A Procedure 1A Fig. 1 Removal of the Keyless Drill Chuck. 1. Set the clutch handle to position 1 and select "LOW" position. 2. Turn the lock collar counterclockwise direction to open the chuck jaws. 3. Use a screwdriver to turn the chuck fastening screw inside the chuck clockwise direction of the arrow, and remove the screw. (See Fig. 1). NOTE: If the chuck fastening screw will not come loose, insert the allen wrench into the chuck and lightly tap in the clockwise direction with a hammer to tighten the chuck, and then loosen the chuck fastening screw. (See Fig. 2). 4. Insert the allen wrench into the chuck, and turn counterclockwise direction in the arrow with holding the unit by the vise to remove the chuck. (See Fig. 3). Fig. 2 Fig. 3 6