HYDRAULICS 1.75 PARKING BRAKE VALVE (71) 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. Gain access to parking brake valve (1), located on the machine structure, adjacent to the front axle. 4. Disconnect the electrical connector to the parking brake valve solenoid (4). 5. Disconnect the three hydraulic hoses (5) from the parking brake valve (1) and blank the valve connections and open hoses. 6. Remove the bolt (6), washer (3) and nut (2) that attach the parking brake valve (1) to the structure.
Remove the parking brake valve (1) from the machine. 1. Parking brake valve 2. Nut 3. Washer 4. Solenoid valve 5. Hoses 6. 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.