Switching On The Drilling-Milling Machine; Switching Off The Drilling-Milling Machine; Inserting A Tool; Installation - Optimum BF20 L Vario Operating Manual

OPTIMUM
M A S C H I N E N - G E R M A N Y
4.3

Switching on the drilling-milling machine

Switch the main switch on.
Select the reduction stage.
Select the turning direction.
Set the potentiometer to the lowest speed.
Close the spindle protection.
Actuate the hand-actuated auxiliary switch Start.
Set the required speed at the potentiometer.
4.4

Switching off the drilling-milling machine

Press the hand-actuated auxiliary switch Stop. During long-term standstill switch the turning
direction switch to the zero position.
4.5

Inserting a tool

4.5.1

Installation

CAUTION!
When milling operations are performed the cone seat has to be fixed always to the draw-
in rod. Any cone connections with the taper bore of the work spindle without using the
draw-in rod are not allowed for milling operations. The cone connection should be
released by the lateral pressure. Injuries may be caused by parts flying off.
The mill head is equipped with a draw-in rod M10.
Remove the cover.
Clean the seat in the milling spindle /
spindle sleeve.
Clean the taper of your tool.
Insert the tool into the holding fixture /
spindle sleeve.
Screw the draw-in rod into the tool.
Tighten the tool with the draw-in rod
and hold the spindle onto the end sup-
port with a key.
4.5.2

Disassembly

Hold the spindle thrust bearing with a wrench and loosen the draw-in rod. Turn the draw-in
rod further, so that the tool is squeezed out from the cone admission.
Page 28 Drilling-Milling machine
Cover
Draw-in rod
End support /
thrust bearing
BF 20 Vario ; BF 20 L Vario
Fig.4-4: Drill-mill head
Fig.4-5: Drill-mill head
Version 3.1.4
Operation
9 / 03 / 2010