SWITCH AS 3E9330 - Caterpillar

Do not let any dirt or foreign material get into the hydraulic system during assembly, connection of lines, when the system is filled with fluid or during any maintenance operation.
When a hoist is used to lift any part or assembly, keep all personnel clear of area. Be sure the tool has the capacity to lift a heavy assembly.
Always use a hoist of correct load capacity. Approximate weights of the components are shown below.
(1) Put the scraper on a level space and put blocks under the cutting edge. Remove the draft frame, draft arms, elevator assembly and any other parts that were put in the scraper bowl for shipment. (2) Remove all brackets, hooks and plates used for shipment. Grind all weld points smooth. (3) If the elevator drive chain has been removed, make lifting assembly (1). Use .50" (12.7) chains and hooks (2). Remove the elevator motor lines that were put inside the draft tube for shipment. (4) Install the tires on the tractor and scraper. See your Caterpillar dealer if necessary. Remove air cleaner cover (3) and remove the paper used for protection. Install the cover and exhaust extension. Remove all plastic covers, boxes and the windshield protection. (5) Install the rollers and shaft assemblies (4) (both sides). Remove the protection cover from the elevator motor. Install elevator motor (5) with the seal, lockwashers and nuts. Install bracket (6). Weld bracket (6) to the elevator frame with .25" (6.4) fillet and bevel groove welds. Install tube assemblies (7) with seals, lockwashers and bolts. Install the flight assemblies that were removed for shipment and tighten bolts (8) to a torque of 225 25 lb. ft. (406 34 N m). (6) Install elevator assembly (9). Install caps (10) (both sides). Make sure the elevator rollers are in the correct location on the roller supports. (7) Install draft arms (11) (both sides) to the draft tube. Tighten bolts (12) to a torque of 550 60 lb. ft. (748 82 N m). (8) Install trunnion (13) to the bowl (both sides). Install the complete draft frame assembly. Install cap (14) (both sides). (9) Put stands under the draft tube. Install bowl lift cylinders (15) with pins (16) and spacer washers as needed. Do not connect the rod end of the bowl cylinders until the is connected to the tractor. (10) Connect hoses (17) and (18) from the elevator motor to the draft frame as shown with seals, flanges, washers and bolts. The top hose (17) is the elevator motor oil pressure line and the bottom hose (17) is the oil return line. Hose (18) is the elevator motor drain line. Install four clamps (19) as shown. (11) Install common rail hose (20) and scraper ejector hose (21) to the right side of the scraper bowl as shown. Connect ejector kickout hose (22), brake signal hose (23) and brake air supply hose (24). Install guards (25) and (26) as shown. Install all