TOP AS 8X1283 - Caterpillar

Before any hydraulic lines or air lines are disconnected make sure the pressure in the hydraulic tank is released and the air pressure is zero. Start the engine and move the ejector forward all the way. Lower the bowl. Stop the engine and loosen the cap on the hydraulic tank slowly. Drain the air from the air tanks under the operator's station.
1. Loosen the lock screw and turn the worm shaft on the slack adjuster until the brakes on the tractor part of the machine release. 2. Put identification on six hose assemblies (1) for correct installation. Disconnect the hoses at the tractor. Put plugs in the hoses to keep dirt out. 3. Put identification for correct installation of the nine hose assemblies that are connected above the draft frame. Disconnect hose assemblies (2), (3), (4), (5) and (6). 4. Remove all clips, clamps and straps that hold wire harness (7) and battery cable (8) to the right side of the draft frame.5. Disconnect the battery cable from the bowl by the removal of one bolt and lockwasher.6. Remove the lockwire from the wire harness and disconnect it. 7. Remove two guards (10). Remove the nut and bolt that holds battery cables (9) and (11) together. Remove all clips that hold the battery cables to the draft frame. 8. Remove two bolts (12). Move the hydraulic hoses and bracket as a unit away from the area where the tractor is fastened to the scraper.9. Disconnect the steering cylinder from the links as follows: a) Remove bolts (16) and two yokes (17). Remove pin (13).b) Pull the steering cylinder out of link (15). Make a separation of links (15) and (14). Push the rod end of the steering cylinder back into link (14). A wood block can be used as a support to hold the rod end of the cylinder up. Put the wood block between the rod end and the link.10. Disconnect the other steering cylinder from the links as in Steps 9a and 9b. 11. Put tool (C) in position between the hitch assembly and the frame assembly stop as shown. Install tool (C) between the other frame assembly stop and the hitch assembly. Tooling (C) is used to hold the hitch assembly so it can not move from side to side. Make sure the bolts in tooling (C) are tight against the hitch assembly.12. Put wood blocks in front and behind all four tires. 13. Put tooling (A) in position under the draft frame on each side of the machine as shown.14. Lift the draft frame with tooling (A) until the weight of the draft frame is off of the cushion hitch at the connection points. 15. Put tooling (B) in position under both sides of the push-pull support assembly. The lift truck used in the following steps must have the capacity to safely hold a weight of approximately 7000 lb. (3150 kg).16. Fasten the lift truck to the push-pull plate. Make sure the forks