794 AC Off-Highway Truck Systems Caterpillar


Brake Control Valve - Dual Brake Valve

Usage:

794 AC MN5


Illustration 1g06412482
View of the brake control valve inside the service enclosure group

Brake control valve (1) is located in the service center enclosure. Brake control valve (1) directs oil from the brake manifold to the front and rear brakes. Brake control valve (1) is activated by the secondary brake pedal, or pilot oil that is controlled by the proportional auto apply brake valves.

Brake Control Valve Ports



Illustration 2g03668709
View of the brake control valve ports
(1) Brake control valve
(3) Port for front brake pilot pressure
(4) Tank return
(5) Port to front brakes
(6) Port from control manifold for front brake pressure
(7) Port for rear brake pilot pressure
(8) Port to rear brakes
(9) Port from control manifold for rear brake pressure

Brake Control Valve (Dual Brake Valve) Applied



Illustration 3g06333695
View of the brake control valve applied
(1) Brake control valve
(3) Pilot pressure from service brake control
(4) Tank return
(5) Port to front brakes
(6) Port from control manifold for front brake pressure
(7) Pilot pressure from service brake control
(8) Port to rear brakes
(9) Port from control manifold for rear brake pressure

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