AIRBRAKE SYSTEM - CONTINUED

TM 9-2320-270-20-1

AIRBRAKE SYSTEM - CONTINUED

Gladhand Mounted at right and left sides of front and rear of vehicle. Provide rear brake operation for

M911 truck tractor being towed. Also provide brake operation for vehicles being towed by M911 truck

tractor.

Relay Valves Each of the three relay valves in the airbrake system have a quick release feature. The

valves act as relay station to speed up the application and release of the brakes.

Quick Release Valve The quick release valve releases air from the front airbrake chambers and

speeds up the release of the brakes.

Front Axle Air Chambers There are two front axle air chambers in the airbrake system. When air

enters the air chamber it moves a push rod, diaphragm, and pressure plate, and applies the brakes.

Pusher Axle Air Chambers There are four pusher axle air chambers in the airbrake system. When the

air enters the air chamber it moves a push rod, diaphragm, and pressure plate, and applies the

brakes.

Tandem Axle Air Chambers Each of the four spring brake air chambers contains a piston with a

spring behind it. Air pressure acting on the piston face moves the piston and compresses the spring

for applying and releasing the tandem axle brakes.

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