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4.10.4 Removing milling tools
Hold the spindle counter bearing with a wrench and loosen the draw-in rod. Continue turn-
ing the draw -in rod, so that the tool is squeezed out from the conical seat.
ATTENTION!
When installing a cold morse taper into a heated-up machine those MT seats tend to
shrink on the morse taper contrary to the steep cone connection.
4.10.5 Use of collets
If collets are used to house milling tools, higher machining tolerance can be achieved. The
collet may easily and quickly be changed for a smaller or larger end mill with no need to remove
the complete tool. The collet is pressed into the ring of the swivel nut and must rest there by
itself. The milling cutter is clamped by fastening the swivel nut on the tool.
Make sure that the correct collet is used for each milling cutter diameter, so that the milling cut-
ter may be fastened securely and firmly.
4.11
Cross table
4.11.1 Adjusting the height of the cross table
Loosen the cross table by loosening the locking lever.
Rotate the crank to lower or raise the cross table.
Then lock the cross table by tightening the clamping lever again.
4.12
Drilling / tapping mode of operation
Enables or disables the thread tapping mode.
Set the operating mode selector switch to threading.
Set the depth stop to the desired depth.
Select the lowest speed.
Switch the rotation of the spindle on. Note the correct direction of rotation.
Move the sleeve downward with the sleeve lever until the machine tap cams in the work-
piece.
The machine tap turns into the workpiece. As soon as the preset depth is attained, the spindle
reverses the direction of rotation at the switch point. The machine tap turns out of the work-
piece. When the sleeve is completely entered up to the switch point the rotation of the spindle is
stopped. Then it is possible to proceed another threading operation.
ATTENTION!
Before proceeding another threading cycle, the sleeve must be completely entered in order to
trigger the switch point.
The selector switch automatic spindle sleeve feed must be in the "OFF" position.
4.13
Clamping the workpieces
CAUTION!
Injuries can be caused by parts flying off.
The workpiece must always be secured to the milling table in a machine vice, chuck or
with another suitable clamping tool, such as a workholding device (clamping claws).
EN
DH 40CT
80
Translation of original instruction
Operation
Version 1.0.1 - 2021-07-06
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