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Pressure Apply - Rear Wheels
GF42.50-P-4000-04S
GF42.46-P-1000SL
GF42.46-P-4500-02SL
Reservoir pressure
Brake pedal pressure
• Brake pedal depressed
• B37/1 and b1 report brake
application to control module
• y1 and y2 energized
• y10 and y12 intake control valves
energized
• Pressure at each rear wheel
monitored by b5 and b6
• Balance valve y4 not energized