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4.7.2
Gear stage
Changing the gear stage may only be at a standstill.
4.8
Direction of spindle rotation
A change in the direction of rotation at the MH22V is only possible if the spindle rotates even in
its standard direction of rotation. The standard direction of rotation is clockwise.
4.9
Feed
with the hand cranks on the milling table.
Note the different forces acting during synchronous milling and conventional milling on the spin-
dles of the milling table. The cutting forces during synchronous milling tend to be that the tool
will move into the material.
Conventional milling is always to be preferred over synchronous milling.
Only with recirculating ball screws can the use of synchronous milling be undertaken sensibly.
This instruction manual assumes that the milling machine has been obtained without recirculat-
ing ball screws.
The forces and backlash occurring in the spindle nuts leads to "chatter marks" on the surface of
the work piece in synchronous milling.
In conventional milling, the work piece moves with the hand cranks on the milling table opposite
to the direction of rotation of the milling machine.
In synchronous milling, the work piece moves with the hand cranks on the milling table in the
direction of rotation of the milling machine. A smoother surface is obtained compared with con-
ventional milling. So, machining in synchronous milling should only be used for finishing.
4.10
Inserting the tool
4.10.1 Installation
WARNING!
When milling, the seat cone must always be secured with the drawbar. A simple
connection with the taper bore of the work spindle without using the drawbar is not
permissible for milling. The cone connection is released by lateral pressure. Injuries may
be caused by flying parts.
The milling head is fitted with an M10 tie rod.
Remove the cap.
Clean the seat in the spindle / quill.
Clean the cone of your tool.
Insert the tool in the spindle / quill.
Version 2.5.1 - 2020-07-28
Cover cap
Img.4-1:
Translation of original instructions
Drill-mill head
MH20V | MH20VL | MH20VLD
GB
31
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