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Pressure Apply - Front Wheels
GF42.50-P-4000-04S
GF42.46-P-1000SL
Reservoir pressure
Brake pedal pressure
• y6 and y8 energized
• pressure applied to left and
right dividing pistons 7 and 8
• 7 and 8 apply pressure to caliper
• pressure at each wheel monitored
by b3 and b4
• Balance valve y3 not energized