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This
chuck had a rough feeling, so I took apart the ball bearing mechanism,
which is easily done by undoing the screw seen in the side view of the
chuck at the bottom of this column. There was not a full
complement of
balls, and so I replaced the entire set with 1/8th inch
diameter hardened carbon steel balls from MSCDirect.com.
Don't be tempted to replace just the lost balls, as it's important that
they all be close to the same diameter, or they'll tend to get in each
others' way when the chuck is tightened. The chuck now works nice
& smooth ! |
The wrist handle was stiff, but after some oil lubrication
and lots of elbow grease, it's a smooth operator again.
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The two images below show the
markings on the chuck at left and the good condition of the ratchet
mechanism at right, which only got hammered one light blow by some
bloke who was too lazy to sharpen a bit.
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