HYDRAULICS 1.89 DUAL BRAKE VALVE (SAFIM) (10) - Servicing 3. Bleed the brake system (refer to Page 1.95) and test the brakes. If necessary, adjust the brake pressure by connecting a pressure gauge to test point 68 and apply the brakes. Adjust the brake pressure by altering the position of brake pedal travel with the adjuster screw (2). NOTE : From Machines S/No.51200472 only. Removal 4. Refer to Page 1.66 and replenish the hydraulic tank, before the engine is started. NOTE: The brake valve is fitted forward of the cab. Remove the front cover and any components as necessary to get access to the brake valve. 5.
Purge the hydraulic system by starting the engine and operating all services to fully extend and retract cylinders several times. 1. Stop the engine and chock the machine, apply the parking brake . 6. Refer to Page 1.66, check the hydraulic level and replenish if necessary. 2. Refer to page 1.1 and dump hydraulic pressure then disconnect the battery. 3. Make sure brake valve is free from dirt to avoid contamination of the hydraulic system. 4. Position a suitable container under the valve to collect any oil spillage during removal. 5. Make sure the hoses (1) are identified to help installation. Disconnect the five hoses from the valve. 7.
Remove the two protective caps (3) from the brake pedal attachment bolt (4). Remove the nut (8) and bolt (4) and remove the brake pedal (5). 8. Fit blanks to all openings on the brake valve and hoses to prevent the ingress of dirt. 9. Remove the four cap screws (7) from the base plate (6). 10. Remove the brake valve assembly (10) from the machine. Installation 1. Installation is the reverse of removal. 1. Hoses 2. Adjuster 3. Protective cap 4. Bolt 5. Brake pedal 6. Base plate 7. Cap screw 8. Nut 9. Adjuster 10. Brake valve (10) 2. If necessary, adjust the brake pedal angle by adjusting the threaded peg (9) under the brake pedal (5). Once adjusted, tighten the peg lock nut.