HYDRAULICS 1.67 HYDRAULIC TANK (1) Installation Removal 1. Installation is the reverse of removal. NOTE: Removal and installation of the hydraulic tank is possible with the machine on the ground.However, increasing the ground clearance or positioning the machine over a pit will make the operation easier and quicker. 2. Use new hose clips and gaskets 3. Refer to Page 1.66 and replenish the hydraulic tank before engine is started. 1. Position the machine over a pit, if available, or lift on axle stands. 4. Purge the hydraulic system by starting the engine and operating all services to fully extend and retract cylinders several times. 2.
Stop the engine and chock the machine, apply the parking brake . 5. Refer to Page 1.66, check the hydraulic level and replenish if necessary. 3. Refer to page 1.1 and dump hydraulic pressure then disconnect the battery. NOTE: The hydraulic tank contains 67 litres (15 gal) of fluid. 4. Remove the drain plug (2) and drain the hydraulic fluid into a suitable container. Do not reuse the hydraulic fluid unless it can be specially filtered and tested. 5. Remove the hose clips (9) from the suction hoses (4 & 5) of the main and auxiliary pumps and the filler hose (3). Remove the hoses from the hydraulic tank (1). 6. Remove the two sightglass attachment bolts and remove the sightglass (6). 7.
Remove the screws securing the return manifold (7) to the tank and lift the manifold to release the gasket (8). 8. Support the hydraulic tank; remove the two nuts from the studs and the two bolts securing the tank to the engine and transmission sub-assembly. Lower the tank and remove from beneath the machine. 1. Hydraulic tank 2. Drain plug 3. Filler hose 4. Suction hose – auxiliary pump 5. Suction hose – main pump 6. Sightglass 7. Return manifold 8. Gasket 9. Hose clips 9. Fit blanks to all openings on the tank and hoses on the machine to prevent the ingress of dirt.