You have to put a little screwdriver into one of
the lateral rabbet to remove the cap. The cap
can be carefully levered up after this. Subse-
quently the knobs have to twist in opposite
ways. Even this process has to carry out care-
fully and evenly until the necessary
stiff motion
of the drive
is reached. The locknut has to be
countered again after this process (Picture 3).
You can adjust the
stiff motion of the drive with
coaxial gross and fine drive
in two different
ways.
How to adjust the
coarse adjustment
(drive):
You have to loosen the set screw at first. Now
the clamp ring will be twisted against the
knurled knob with help of a wrench. For this
the wrench has to be inserted into the adjacent
hole beside the set screw. The set screw can
be tightened again if you have reached the
stiff motion you would like to have (Picture
3.1).
Picture 3.1:
Adjustment of the stiff motion of the drive with
coaxial gross and fine drive (coarse drive)
How to adjust the
fine drive
:
Please remove the cap at the left fine drive
knob (without scale) with help of a small
screwdriver. You have to loosen now the visi-
ble collet chuck screw. Subsequently the knobs
of the drive have to be pressed against each
other and the collet chuck screw has to be
fixed again. Insert the cap again at the fine
drive knob (Picture 3.2).
Picture 3.2:
Adjustment of the stiff motion of the drive with
coaxial gross and fine drive (fine drive)
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