How to Remove the Chuck From a Chicago Pneumatic 3/8-Inch Drill
The Chicago pneumatic 3/8-inch drill is much like an electric drill, except that it uses air from an air compressor for power. The chuck is typically keyed, but this can be replaced with an after-market keyless chuck. The chuck is held in place by a set screw through the back of the chuck into the drill's drive shaft. Once this screw is taken out, the drill chuck can be loosened and removed.
Other People Are Reading
Instructions
-
-
1
Remove the air hose from the coupling on the bottom or rear of the drill handle. Grasp the coupling and pull away from the drill, which will disengage the coupling and remove it from the drill.
-
2
Insert the chuck key into the drill and twist counterclockwise to loosen the jaws and remove any bit in the chuck. Once the drill bit is removed, twist the chuck counterclockwise until the jaws are open to their widest point.
-
-
3
Insert an Allen wrench into the set screw at the back of the chuck and turn it clockwise to remove the screw.
-
4
Place the chuck key back into the chuck. Position the drill flat on a work table, and tap the chuck key with a mallet, turning the chuck counterclockwise to break it loose from the drive shaft. When the chuck breaks loose, remove the chuck key.
-
5
Turn the chuck counterclockwise until it is removed from threaded drive shaft.
-
1
Tips & Warnings
Before working on repairing your drill, always disconnect the tool from the power source (in this case, the pneumatic air hose).
References
- Photo Credit mandrin image by thierry planche from Fotolia.com
More Like This
Comments
-
beatamax
Jun 09, 2010
It is safer and easier to fasten a large allen key in the chuck and strike the end of it. There is more leverage and no danger from the chuck key flying round the workshop. It is likely to take a few strikes of the hammer to loosen the chuck dont expect it to work first time.
