GF42.60-B-0001E | Additional vacuum supply for brake booster, function | 12.02.16 |
Vehicle 688.232D, 688.254D, 688.255D, 688.276D
B42.60-0186-12
Vehicle 688.232/.254/.255
13.02 Brake pedal valve
14.01 Parking brake manual valve
28.02 Quick discharge valve
a Supply pressure
b Control pressure
c Braking pressure
B42.60-0292-11
Vehicle 688.276
13.02 Brake pedal valve
14.01 Parking brake manual valve
28.02 Quick discharge valve
a Supply pressure
b Control pressure
c Braking pressure
Operation: (vehicle 688.232/.254/.255)
The compressed air that activates the valves of the group (BV) comes from the groups DE and DS.
Service brake valve (13.02)
The service brake valve (13.02) uses the air stored in the compressed air reservoirs (5.01), braking the vehicle when the driver applies the brake pedal. It ensures the vehicle to have a gradual braking and proportional to the effort deployed on the brake pedal. After applied, the service brake valve (13.02) sends the air to the axle pneumatic cylinders (22.01) and (20.02).
Parking brake manual valve (14.01)
The manual parking brake valve (14.01), when applied, allows the progressive application or non-application of the parking brake. It sends a control pressure to the quick discharge valve (28.02).
The quick discharge valve (28.02) works on the rapid draining of the compressed air that returns from the circuit, shortening the cylinder activation time (22.01) of the axle.
Operation: (vehicle 688.276)
The compressed air that activates the valves of the group (BV) comes from the groups DE and DS.
Service brake valve (13.02)
The service brake valve (13.02) uses the air stored in the compressed air reservoirs (5.02), braking the vehicle when the driver applies the brake pedal. It ensures the vehicle to have a gradual braking and proportional to the effort deployed on the brake pedal. After applied, the pedal brake valve (13.02) sends the air to the axle pneumatic cylinders (22.01) and (20.02).
Parking brake manual valve (14.01)
The manual parking brake valve (14.01), when applied, allows the progressive application or non-application of the parking brake. It sends a control pressure to the quick discharge valve (28.02).
The quick discharge valve (28.02) works on the rapid draining of the compressed air that returns from the circuit, shortening the cylinder activation time (22.01) of the axle.