KIT-WEIGHT ADJUSTER 2134579 - Caterpillar

(30) Steer full left and right twice; refill the rear tank as necessary. (31) Charge the brake accumulator and then bleed by turning off the engine and applying the brakes. Repeat five times. (32) With the engine at low idle and the bucket level and resting on the ground, refill the rear tank to the fill screen. Check the oil level and bleed the system several times during the first day of operation. (33) Replace all filter elements. Change the elements after 8, 50 and 300 service hours. Thereafter, replace elements every 500 hours or when the filter element indicator signals clogging.Sudden Failure Flushing Procedure
Several steps of the procedure can be done simultaneously. For example, the front tank can be disassembled while the cylinders and rear tank are being cleaned. Also, if the steering pump and one of the twin implement pumps have been rebuilt and reinstalled, flushing can be completed without using the other pumps. Such scheduling of work may reduce total downtime. (1) Drain the hydraulic system carefully and completely. See page 8. (2) Bleed, drain, remove, disassemble and clean all hydraulic system cylinders. Do not remove tubes and hoses from the machine. Do not reinstall the cylinders. (3) Note the locations, remove and inspect hydraulic pumps (1), (2), (3) and (4). Leave all tubes and hoses on the machine. (4) Bleed and drain both filters and the lift cylinder high pressure screens. Remove, inspect and clean all screens. (5) Wipe all filter and screen housings clean; install the screens and new filter elements. (6) Remove and clean the front hydraulic tank. Disassemble and clean all valves; do not reinstall the tank. (7) Remove the bottom from rear tank (5). Wipe the tank walls and bottom clean or remove the top plate and clean the tank walls and bottom with a solvent spray. Disassemble, clean and reinstall all valves, baffles and tubes in this tank. Cover end (A) of tube (6) using the FT870 Cover and FT871 Gasket. See pages 25 and 26. (8) Reassemble the rear tank and fill it with clean oil. (9) Prelubricate all pumps with clean SAE 30W oil. Rotate the shafts to lubricate. (10) Reinstall steering pump (1) only and connect the lines. Cover the remaining pump openings using two 5M596 Covers, two 5F3106 Seals and a 6H3345 Cover. Cover suction lines (7) and (8) using two FT872 and one FT875 Covers. (11) Substitute two FT878 Hoses for the removed steering cylinders. (12) Center the steering wheel and place all controls in HOLD position. (13) Start the engine; close the bleed valves when oil flows without bubbles. (14) Run the engine at low idle and refill the rear tank. (15) Steer full left and right twice; refill the tank. (16) Cycle the steering system for 15 minutes at high idle; avoid activating the relief valves. (17) Remove steering pump (1) and the FT878 Hoses. Disconnect steering circuit return tube (9) at the rear tank. (18) Install highest pump (2);