DAF 95XF. Manual — part 472

3

PNEUMATIC GEARBOX COMPONENTS

Description of components

2-4

2.3 GEAR ENGAGING CYLINDER HIGH/LOW GROUP

Pneumatic symbol

Connection

point

Function

25

High rear-mounted range

unit

26

Low rear-mounted range

unit

Operation
The gear engaging cylinder responsible for
high/low gearbox shifting, is supplied via the
shift-down safety valve. This safety valve is
operated by the shifting valve on the gear lever.
The gear engaging cylinder is located at the rear
end of the gearbox.

V300141

V300142

26

H

L

25

5

ǹ 0002

3

Description of components

PNEUMATIC GEARBOX COMPONENTS

2-5

2.4 GEAR LEVER SHIFTING VALVE

Pneumatic symbol

Position

Function

GP

Rear-mounted range unit

GV

Splitter

B

A

D000096

1

22

21

GV

GP

H

L

H

L

V300161

5

ǹ 0002

3

PNEUMATIC GEARBOX COMPONENTS

Description of components

2-6

Operation of the range switch
Switching tot the lower or the higher range is
done by toggling a switch (B) at the front of the
gear lever: switch down: low range, switch up:
high range. Preselection is permitted. Switching
itself takes place when the gear lever passes
neutral.

Operation of the splitter switch
Switching half gears, the so-called splitting, is
done with switch (A) at the side of the gear
lever. Bottom pressed: low gear, top pressed:
high gear.
When the switch has been operated, the clutch
pedal must be fully depressed, after which the
gear-change is made.
Preselection is permitted.
If the low splitter mode is engaged, the splitter
control light on the instrument panel will light up.

B

A

D000096

5

ǹ 0002

3

Description of components

PNEUMATIC GEARBOX COMPONENTS

2-7

2.5 GV VALVE

Pneumatic symbol

Connection

point

Function

1

Supply

2

Control pressure

Operation
The GV (“Getriebe-Vorschalt”) pre-shifting valve
ensures that when the clutch pedal is
depressed, pressure is supplied to the splitter
cylinder via the relay valve.
If the clutch pedal is not depressed, this bleeds
the splitter cylinder.
The splitter cylinder will stay in the position in
which it was last switched.

V300177

V300164

1

2

5

ǹ 0002