5) 5) FAN MOTOR OPERATED FAN MOTOR OPERATED 19 Front P1 A1 P2 T1 20 40 T2 A2 Rear 16 17 16 S2 B2 B1 S1 S3 Priority valve 15 G1 18 PS P B3 Parking T/M Return line 18 18 PS G2 PS PS 41 22 23 24 2 29 P 30 A A D Return line 25 T B B 21 B Main pump L S 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 26 26