OPTIMUM
M A S C H I N E N - G E R M A N Y
Operation
Version 2.2.2 dated 2014-03-07
Page 44
Original operating instructions
B24H | B24HV | B28H | B28HV
GB
4.9
Disassembly, assembly of drill chucks and drill bits
4.9.1 Use of Quick action drill chuck
The drill chuck consists of two
parts(No. 1 and No. 2).
Hold the upper part (No.1)
of the drill chuck. With the
lower part (No. 2) of the drill
chuck one can firm and/or
loose-turn the cheeks of the
drill chuck.
Turn the tool (drill) firmly.
Img.4-15:
Quick action drill chuck
CAUTION!
Make sure that the clamped tool is firmly and correctly fitted.
4.9.2 Disassembly of the drill chuck B24H - B24HV
The drill chuck and the taper mandrel are loosened from the drill spindle by means of a drill
drift.
WARNING!
Disassemble the drill chuck only when the drilling machine is disconnected from the
electrical power supply.
Switch off the drilling
machine with the main
switch or disconnect the
power plug.
Move the drill sleeve
down.
Turn the drilling spindle so
that the opening at the
drilling spindle sleeve
coincides with the open-
ing at the drilling spindle.
Loosen the taper mandrel
of the drill chuck with the
help of a drill drift.
Img.4-16:
Disassembly B24H - B24HV
upper part (No.1)
quick action drill
chuck
lower part (No.1)
quick action drill
chuck
Tool (drill)
Drill drift
Drill sleeve
upper part quick
action drill chuck
lower part quick
action drill chuck