6) DIRECTIONAL VALVE OPERATED DIRECTIONAL VALVE OPERATED 19 Front P1 T1 A1 P2 A2 20 40 T2 Rear 16 17 16 15 S2 B2 B1 S1 S3 18 Priority valve G1 PS Return line P B3 Parking 41 T/M 18 18 PS G2 PS PS 22 23 24 2 29 30 P A A D Return line 25 B T B B Main pump 21 L S 740F4BS07 When the fan control switch is pressed A or M position, the solenoid valve in the directional valve (30) is energized and the flow of the oil is changed. The rotation of the fan is reversed to clear the radiators. 4-9 26 26