Initial Installation
26
EN 4161.758.101m – 2018-09
Diagram for shift unit
with two positions
(standard) or three positions (with neutral
position):
1st gear ==> e.g. 4:1
2nd gear ==> 1:1
3rd gear ==> S3 neutral position,
idling
(option)
S3
S1
S2
optional
M
3
4
4
2
1
3
4
blue
blue
grey
grey
black
blue
black
black
green
X8
4
3
5
2
6
8
1
7
The electromotive gear change is performed by a
shift unit on the gearbox which is driven by a DC
motor (24 V DC). The gearbox shift element is a
positively locking, axially movable selector fork that
acts on a sliding sleeve.
The limit positions are monitored by limit switches
in the shift unit. The time sequence is monitored in
the control unit.
The motor must be energized when shifting from
gear 1 to 2 or vice versa. The direction of rotation
is changed over by reversing the polarity.
