New Holland CX720 Repair Manual page 2848

Master cylinder - Dynamic description (D.30.C.27 - C.30.A.10)
The two main cilinders (1) are mutually connected with connectors (2) and (3), further with pipe (4) to the fluid reservoir
and with pipes (5) to the brake cilinders.
Fluid from the fluid reservoir enters the brake main cilinder through port (6) (pedal not engaged).
When both brake pedals are engaged, port (6) is shut off by seal (7), and fluid is pressed through port (8) and pipes
(5) to the brake cilinder. Ball (9) is lifted up in both main cilinders (1) by plunger (10).
When only one brake pedal is engaged, port (6) is also shut off by seal (7) and fluid is pressed through port (8) and
pipe (5) to the brake cilinder.
In the other main cylinder, ball (9) is pressed down by the fluid pressure coming from the first cilinder through connector
(2) and seat (11). The fluid flow is stopped by seal (12).
TRAVELLING - SERVICE BRAKE Hydraulic
ZDA5249A
ZDA5250A
2 4/7/2006
D.30.C / 4
1
2