3
CF65/75/85 series Description of components
PNEUMATICALLY ASSISTED GEARBOX CONTROL
(SERVOSHIFT)
2-5
1
st
/5
th
or 3
rd
/7
th
gear engaged
2/6
4/8
1/5
3/7
N
3
2
1
1
V300331
1. Servoshift unit
2. Selector valve
3. Operating cylinder
When the gear lever is moved forwards, the
selector valve moves to the right. Supply
pressure is thereby applied to the left side of the
cylinder, and the cylinder moves to the right. The
right side is bled when this happens. When the
cylinder reaches the end position, it switches off
the air supply. Supply pressure will only be
applied to the cylinder if the gear lever is in
operation. When the gear lever is released, the
selector valve goes back to the centre position,
and the cylinder is bled on both sides. The
cylinder remains in position due to the
double-retaining arrangement.
If it is desired to change to the 2
nd
/6
th
or
4
th
/8
th
position, the selector valve must be
moved to the left until the cylinder moves to the
2nd/6th or 4th/8th position passing through the
neutral position.
3
ᓻ 200337
https://www.truck-manuals.net/
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