Changing the drill chuck

Removing the Drill Chuck (see figure F)

To remove the keyed chuck (1), place an open-ended spanner (17) (width across flats: 17 mm) onto the spanner flat of the drive spindle.

Place the power tool on a firm surface, e.g. a work bench. Insert the chuck key (12) into one of the three holes of the keyed chuck (1) and release the keyed chuck (1) with this lever by turning it in rotational direction ➊. A keyed chuck that is fixed in place can be released by applying light force to the chuck key (12). Remove the chuck key (12) from the keyed chuck and completely unscrew the keyed chuck.

Fitting the Drill Chuck (see figure G)

The keyed chuck is fitted in reverse order.

The drill chuck must be tightened using a tightening torque of approx. 80–85 Nm.