BENDIX ATR-1 ANTILOCK TRACTION RELAY Podręcznik - Strona 3

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BENDIX ATR-1 ANTILOCK TRACTION RELAY Podręcznik
TRACTION
SOLENOID
RELAY PISTON
REAR AXLE
RESERVOIR
FIGURE 4 - SERVICE BRAKE APPLICATION
SERVICE BRAKES HOLDING (FIGURE 5)
The air pressure being delivered to the brake chambers is
also present beneath the relay piston.
When the air pressure above and below relay piston is equal,
the piston moves slightly allowing the inlet valve to return to
TRACTION
SOLENOID
RELAY PISTON
REAR AXLE
RESERVOIR
FIGURE 5 - SERVICE BRAKES HOLDING
CONTROLLER
CONTROLLER
CHECK VALVE
INLET EXHAUST
its seat. The exhaust valve remains closed. With both the
inlet and exhaust valves closed, air pressure in the brake
chambers is held stable and neither increases nor decreases.
CHECK VALVE
INLET EXHAUST
BRAKE
VALVE
MODULATOR
SPRING BRAKE
BRAKE
VALVE
MODULATOR
SPRING BRAKE
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