
OPTIMUM
M A S C H I N E N - G E R M A N Y
Version 1.2.5 dated 2017-03-10
Page 42
Original operating instructions
DH26GTV | DH28GSV
GB
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.
Img. 4-9: 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.
4.10
Foot switch - Rotation reversal
Use the optional foot switch for a reversal of direc-
tion for thread cutting.
"Connecting the optional foot switch“ on page
Drill sleeve
Driver
Taper mandrel