Fitting The Drill Chuck - Optimum OPTI drill DH 26GT Operating Manual

4.9.4 Fitting the drill chuck

The drill chuck or the tool is secured in the drill spindle against turning over by means of a form-
locking connection (driver).
A frictionally engaged connection keeps and centres the drill chuck or the drill in the drill spin-
dle.
Drill sleeve
Driver
Taper mandrel

Check or clean the conical seat in the drill spindle and on the taper mandrel of the tool or of
the quick-action drill chuck.

Press the taper mandrel into the drill spindle.
Version 1.2.9 - 2021-09-28
Img.4-10: Taper mandrel
Translation of original instruction
DH26GT | DH28GS EN
105