3
PNEUMATICALLY ASSISTED GEARBOX CONTROL
(SERVOSHIFT)
Description of components CF65/75/85 series
2-4
General
The Servoshift unit consists of a selector valve
and a double-action cylinder.
When the control rod is moved forwards or
backwards, the selector valve lever (2) is
operated first. This operates the selector valve
in the Servoshift unit, so that air acts on the
piston and the piston will operate the servo lever
(1). The gear is now selected.
When the gears are activated and the gear lever
is no longer operated, the selector valve is
pressed back into the neutral position by the
spring and the piston is bled on both sides.
V300327
1 2
3
Neutral position
2/6
4/8
1/5
3/7
N
3
2
1
1
V300330
1. Servoshift unit
2. Selector valve
3. Operating cylinder
When the selector valve is in the centre position,
bleeding will take place on both sides of the
cylinder. Only when the gear lever is operated
will the selector valve be operated. The selector
valve will then apply pressure on one side of the
cylinder, so that a gear is engaged.
3
ᓻ 200337
https://www.truck-manuals.net/
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