10/29/2020 REV. 003 14
considerably reduce, and may even eliminate, the need to disassemble the quick-change chuck to clean it.
If, however, the chuck has accumulated so much dirt and grime that disassembly is necessary, follow the
procedures given below:
o Quick Change Chuck with Knurled Collar:
Lift the snap ring out of the groove and slide it towards the motor, resting on the chuck body. The
collar can then slide along the chuck body, exposing the compression spring and the two ball
bearings. (CAUTION: The ball bearings are held in place only by the collar; be careful not to lose
these ball bearings!) Clean the exposed area of the chuck body, the spring, and the two ball
bearings and reassemble the chuck. Use the spring to hold one of the ball bearings in place,
position the other ball bearing, and slide the collar back into position (it may be necessary to
depress the ejector in the center of the chuck body to completely slide the collar back into place.)
Replace the snap ring in the groove on the chuck body.
o Quick Change Chuck with Smooth Collar:
Slide the collar upward until it locks into the upper most position. The snap ring is located between
the chuck body and the collar (on the open end where the tap holders inserted). Use an awl or
small slotted screwdriver to locate one of the snap ring ends. Rotate the snap ring end until it is
positioned in one of the two chuck slots. It can now be carefully lifted upward and by using a
circular motion, the ring can be completely removed. The collar can now be removed by depressing
the ejector in the center of the chuck body (CAUTION: The collar may eject rapidly. Be careful not
to damage the collar or lose the ball bearings, spring, or snap ring). Clean the exposed area of the
chuck and reassemble (It may be necessary to depress the ejector in the center of the chuck body
to completely slide the collar back into place). Replace the snap ring in the groove on the chuck
body.
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