CONTROL VALVE GROUP 7J3974 - Caterpillar

VIEW FROM UNDER SCRAPER2. Disconnect brake line (1) from the tee. Disconnect brake lines (2) and (3) from fittings found on each side of the frame. Remove three bolts (4) from the clips. Remove the lines.
VIEW FROM UNDER SCRAPER3. Remove eight bolts (5) from tank brackets (6). Make sure the plates between the tank and the brackets are removed and installed in same position. 4. Disconnect fuel line (7) from fitting on top of the tank. 5. Disconnect tube (8) and hose (9) from the top of tank. 6. Put OTC Model 1790 Lo-Lift Transmission Jack (A) in position on the front side of cross frame. Slide tank forward over cross frame and on the jack. Lower the jack and remove from the rear as shown. The weight of the tank is 130 lb. (59 kg).Install Lower Fuel Tank
1. Put the fuel tank on transmission jack (A) and put tank in position under scraper. Lift the jack and slide the tank in position.
VIEW FROM UNDER MACHINE2. Put the plates in position and install bolts and nuts (1).
VIEW FROM UNDER MACHINE3. Connect brake lines and install bolts on each side of the frame. Install bolt (3) and connect brake line (2) to the junction. 4. Connect fuel line (4) to the fitting on top of tank. 5. Connect tube (5) and hose (6) to the top of the tank.6. Remove (bleed) the air from the system.7. Install the rear cover assembly. Make reference to INSTALL EJECTOR CYLINDER in VEHICLE SYSTEMS DISASSEMBLY AND ASSEMBLY.