6
CF65/75/85 series
Description of components
OPERATION OF BRAKE COMPONENTS
2-7
Operation, four-circuit safety valve
The air supply enters at connection 1
(connection 11 on models with air-sprung front
axle). From there, the air flows to the built-in
overflow valves of circuits 1, 2 and 4.
As soon as the valve of circuit 1 and/or circuit 2
opens, the air will be able to flow through to
circuit 3, the trailer vehicle brake and parking
brake circuit. For reasons of safety, a built-in
flow-back function empties circuit 3 when the
pressure in circuit 1 is too low. This is done to
enable the emergency brake function to be
activated.
24
1
H
K
26
22
21
3
23 25
P
U
6.2
6.3
6.4
P
U
6.5
6.6
6.7
R600476
model with leaf-sprung front axle
24 26
22
21
3
23 25
P
U
6.2
6.3
6.4
P
U
6.5
6.6
6.7
11
R600477
model with air-sprung front axle
4
ᓻ 200324