DAF CF65, CF75, CF85 Series . Manual — part 312
3
CF65/75/85 series
Description of components
GEARBOX - PNEUMATIC SECTION
2-3
Sectional drawing of integrated air
distribution block:
V300868
1
3
4
6
8
5
7
9
10
2
1.
Neutral position valve
2.
Neutral position valve attachment pin
3.
Air distribution block
4.
Neutral switch
5.
Neutral position valve attachment pin
6.
Locking cylinder
7.
Locking cylinder lever
8.
Reversing switch
9.
Reversing switch attachment pin
10. Selector housing
4
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3
GEARBOX - PNEUMATIC SECTION
Description of components
CF65/75/85 series
2-4
2.2 NEUTRAL POSITION VALVE
Situation with separate air distribution block:
V300140
Pneumatic symbol
Connection
point
Function
1
Supply
21
Cut-in pressure,
range-change switch
22
Plugged
Position
Function
N
Gearbox selector shaft in
neutral
V
Gearbox selector shaft
engaged
N
V
1
21
22
V300160
4
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3
CF65/75/85 series
Description of components
GEARBOX - PNEUMATIC SECTION
2-5
Operation
Gearbox in neutral:
In the neutral position, thrust pin A will be
pushed into a recess in the selector shaft by
means of the air pressure coming from
connection 1 and a bore hole through sealing
pin B. Sealing pin B will provide a spring-loaded
seal on seat C. The air flow can now leave the
valve via connection 21 and subsequently
operate the range cylinder through the
electropneumatic valve.
W 3 02 098
21
1
3
22
A
B
C
Gearbox engaged:
When a gear has been engaged, the selector
shaft will push the thrust pin A up against
sealing pin B. This closes off the bore hole in
this pin and causes the pin to be lifted of seat C
against the spring pressure. The air pressure in
the gear engaging cylinder can now flow back to
the neutral valve via the electropneumatic valve
and leave the valve housing through the bleed
opening (3).
W 3 02 102
21
1
3
22
A
B
C
4
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3
GEARBOX - PNEUMATIC SECTION
Description of components
CF65/75/85 series
2-6
Situation with integrated air distribution
block
V300862
Pneumatic symbol
Connection
point
Function
1
Supply
21
Cut-in pressure,
range-change switch
Position
Function
N
Gearbox selector shaft in
neutral
V
Gearbox selector shaft
engaged
V300863
V
21
1
N
4
ᓻ 200337
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