Mounting The Drill Chuck B24H - B24Hv Und B28H - B28Hv; Cooling - Optimum Opti drill B 24H Operating Manual

OPTIMUM
M A S C H I N E N - G E R M A N Y

4.9.4 Mounting the drill chuck B24H - B24HV und B28H - B28HV

The quick-action drill chuck
is secured through a form-
fit union (driver) against
twisting in the drilling spin-
dle.
A friction-locking
holds and centers
quick-action drill chuck
with the taper mandrel in
the drilling spindle.

Check and, if necessary, clean the conical seat in the drilling spindle and at the taper man-
drel of the tool or the quick-action drill chuck.

Press the taper mandrel into the drilling spindle.
4.10

Cooling

The friction generated during rotation can cause the edge of the tool to become very hot.
The tool should be cooled during the drilling process. Cooling the tool with a suitable
cooling lubricant ensures better working results and a longer edge life of the tools.
This is best realised by a separate cooling equipment. If there is no cooling equipment included
in the delivery volume, you can cool by means of a spray gun or a washing bottle.
Img.4-20: Charging hole B28H Vario
Img.4-21: Coolant shut-off tap and doser B28H Vario

Adjust the flow using the shut-off and dosing tap.
GB B24H | B24HV | B28H | B28HV
Page 46
Drill sleeve
union
the
driver
Taper mandrel
Img.4-19: Taper mandrel
Coolant charging hole
Coolant shut-off tap and doser
Original operating instructions
Operation
Version 2.2.2 dated 2014-03-07