5) 5) FAN MOTOR OPERATED (OLD) FAN MOTOR OPERATED (OLD) 24 FRONT P1 A1 45 T1 P2 T2 A2 25 21 22 21 REAR 20 S2 B2 B1 S1 S3 23 C5 C6 C3 G1 PS 46 Priority valve 23 P B3 C4 T/M G2 C1 PS PARKING T2 23 Return line P 6 Return line A B D L S1 B A Main pump 7609A4BS06 When the brake accumulators are fully charged, the priority valve switches position and the oil is directed to hydraulic fan motor through directional valve (30). The flow of the oil causes fan motor (29) to rotate the fan blade. The rotation of the fan forces cool air to flow through the cooler. 4-8 C2 T1 27 6 8