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TM 5-4210-220-12
1-17. BRAKE SYSTEM - Continued
c. Front Brake System.
(1) To engage the front brakes, air pressure is supplied from the secondary reservoir via the service brake valve
(front) to the front wheel brake air chambers, (see fig. 1-33). When the brake pedal is released, the air pressure
exhausts. Without pressure, the quick release valve opens and vents the air chambers to atmosphere, thereby, releasing
the brakes.
(2) The front brake system is operational only when the secondary reservoir is pressurized.
Figure 1-33. Front Brake System
1-39
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