BENDIX M-21-M-22 ANTILOCK MOD ASSY Wartungshandbuch PDF herunterladen (Seite 6)

Air Brake System

Components

• Air compressor

• Governor

• Air dryer (optional)

• Reservoirs

Primary

Front

Rear

Low pressure indicator

Pressure relief valve

Check valve

• Brake valve (treadle)

• Stoplight switch

• Front brake chamber

• Rear brake chamber

• Quick release valve

• Double check and quick release valve

• Slack adjusters (automatic)

• Air control valve

Brake

Trailer/Emergency

• Tractor protection valve

• Pressure protection valve

• Bobtail proportioning relay valve

• Antilock modulator valve

EC-16 antilock electronic control unit

Major Component Description

Air Compressor

The air compressor is the source of energy for the air brake system. Its function is to

provide and maintain air under pressure to operate devices in the air brake and auxil-

iary air systems. It is driven by the vehicle engine through a gear drive, and utilizes the

engine’s lubrication and cooling system. The compressor is a reciprocating piston type

that features automatic inlet and discharge valves and an unloading mechanism. Since

the compressor is driven direct off the engine accessory drive, it is operating continu-

ously while the engine is running. Actual compression of the air is controlled by the

compressor unloading mechanism and the governor.

Revised 11/15/99

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BENDIX M-21-M-22 ANTILOCK MOD ASSY Wartungshandbuch Seite 6