Gruppo funzionale 2 Telaio › 42 Freni impianto idraulico e meccanico › 42.60 Complesso pneumatico — Serie 688 (modelli 15*)
EinPAS 21 Freni/impianto di depressione/impianto pneumatico › 21.15 Freno di servizio/impianto di depressione › 21.15.13 Tubazione/flessibile/valvola — Serie 688 (modelli 15*)
GF42.60-B-2004D
Function description - group of activating valves
12.02.16
Vehicle688.15
B42.60-0061-11
19.03Hydraulic cylinder
27.04Brake booster (vacuum-actuated)
aSupply pressure
andHydraulic pressure
operation:
The vacuum-actuated brake booster (27.04) works when the driver steps on the brake pedal, multiplying the applied force and activating the hydraulic cylinder (19.03).
The hydraulic cylinder (19.03) uses the oil of the tanks (34.02) and sends it to the wheels' hydraulic cylinders.
