12323 Brake actuator chambers

Purpose Brake actuator chambers convert the energy of compressed air into the mechanical force and motion necessary to operate the foundation brakes which are attached to the ends of each axle casing or steering stub axles.

Brake actuators are designed for braking systems which must meet various application requirements. Broadly, brake actuators come into the following classifications:

1 single diaphragm chamber type,

2 double diaphragm chamber type,

3 triple diaphragm chamber type,

4 diaphragm/piston chamber push or pull type,

5 spring brake diaphragm/piston chamber type,

6 lock wedge actuator (now obsolete and will not therefore be described),

7 remote spring brakes.

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