BENDIX ATR-2 ANTILOCK TRACTION VALVE Service Data Sheet - Page 5

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Also for BENDIX ATR-2 ANTILOCK TRACTION VALVE: Technical Bulletin (2 pages)

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TRAILER SUPPLY
INLET EXHAUST
PROPORTIONING
PISTON
REAR AXLE
RESERVOIR
FIGURE 7 - BOBTAIL TRAILER SERVICE BRAKES APPLYING (LESS THAN 80 PSI)
TRACTION CONTROL - SERVICE APPLICATION
GENERAL
While under the control of an antilock traction controller,
the ATR-2
™
valve's solenoid is able to initiate a brake
application that allows the traction system to control wheel
TRAILER SUPPLY
INLET EXHAUST
PROPORTIONING
PISTON
REAR AXLE
RESERVOIR
FIGURE 8 - BOBTAIL TRAILER SERVICE BRAKES HOLDING
CONTROLLER
CONTROLLER
TRACTION
SOLENOID
RELAY PISTON
spin upon acceleration under 25 mph. When wheel spin is
detected and the vehicle is stopped, or moving at any speed
up to 25 mph, the antilock traction controller instantly
energizes the solenoid in the ATR-2
applies air to each of the rear axle modulators as shown in
Figure 12. The modulators are equipped with solenoid valves
BRAKE
VALVE
CHECK VALVE
INLET EXHAUST
MODULATOR
SERVICE BRAKE
™
valve which then
TRACTION
SOLENOID
BRAKE
VALVE
CHECK VALVE
RELAY PISTON
INLET EXHAUST
MODULATOR
SERVICE BRAKE
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