Optimum 3338180 Betriebsanleitung Seite 90

A change in the direction of rotation at the MH50V is only possible if the spindle rotates even in
its standard direction of rotation.
The standard direction of rotation is clockwise.

Electrical connection on page 83
4.9 Feed
with the hand cranks on the milling table.
Note the different forces acting during synchronous milling and conventional milling on the
spindles 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 on the MH50G and MH50V to synchronous
milling.
Only with recirculating ball screws can the use of synchronous milling be undertaken sensibly.
This instruction manual assumes that the milling machine MH50G and MH50V has been
obtained without recirculating 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
conventional milling. So, machining in synchronous milling should only be used for finishing.
4.10 Spindle quill feed
With the fine feed ( 12 ).

Turn the handle screw ( 24 ) to engage the coupling of the fine feed.
12
4.10.1 Setting the drilling or tapping depth - Setting the beep
In order to set the depth on the display.

Press the tool selection button
release the button
EN
MH50G│MH50V
90
24
and the workpiece zero button
as first.
Translation of original instruction
and then
Version 1.0.5 - 2021-01-29