HYDRAULICS 1.74 FAN REVERSE VALVE (72) NOTE : From Machines S/No.51200472 only. Removal 1. Stop the engine and chock the machine, apply the parking brake . 2. Refer to page 1.1 and dump hydraulic pressure then disconnect the battery. 3. Open engine cover to gain access to fan reverse valve (2) on the air cleaner bracket. 4. Disconnect the electrical connectors to the fan reverse valve solenoid (3) and the temperture switch. 5. Disconnect the five hydraulic hoses (1) from the fan reverse valve (2) and blank the valve connections and open hoses. 6. Remove the bolts (5) and washers (4) that attach the fan reverse valve (2) to the air cleaner bracket.
Remove the fan reverse valve (2) from the machine. 1. Hoses 2. Fan reverse valve 3. Solenoid valve 4. Washer 5. Bolt Installation 1. Installation is the reverse of the above procedure. 2. Refer to page 1.66, check the hydraulic level and replenish if necessary before the engine is started. 3. Purge the hydraulic system by starting the engine and operating the fan reverse system and all services. Fully extend and retract cylinders several times. 4. Refer to Page 1.66. Check the hydraulic level and replenish if necessary.