HEAT EXCHANGER GP-SEA WATER 1343533 - Caterpillar

1. Move ejector forward and lower the apron and bowl. Stop the engine and move all hydraulic levers to release the pressure in the system.2. Slowly loosen the hydraulic tank cap the release the pressure in the tank.3. Let the air out of the air reservoirs. 4. Remove bolts (1) and shield assembly (2) from the hitch assembly. 5. Put identification on all hose assemblies (4) and tube assemblies (3) and disconnect them from the elevator control valve.6. Install tool (A) and a hoist on the elevator control valve. Remove mounting bolts (6) and the elevator control valve (5) from the hitch assembly. The weight of the control valve is 29 kg (65 lb.). 7. Put elevator control valve (5) in position on the hitch assembly plate. Install the two bolts to hold it in position. Remove tool (A) and hoist.8. Connect all tube assemblies (3) and hose assemblies (4) to their respective positions on the elevator control valve.9. Install shield assembly (2) in position on the hitch assembly.10. Start the engine and operate the hydraulic levers to remove the air from the system. Stop the engine and check the oil level in the hydraulic tank.Disassemble Elevator Control Valve
START BY:a) remove elevator control valve 1. Remove two bolts (1) and remove relief valve body (2). 2. Remove spring (3) and valve (4). Remove and inspect O-ring seals (5). Make a replacement of the seals if necessary. Remove two bolts (7), then remove bottom section (6) of relief valve. Remove O-ring seal from bottom section (6). Inspect the seal and make a replacement if necessary.3. Remove two bolts (17) to make a separation between relief valve bodies (8) and (15). Remove valve (13), remove shims (14) from valve (13). Remove spring (11), sleeve (12) and pilot valve (10). Remove O-ring seal (9) from body. Inspect seal and make a replacement if necessary. Check the contact face (16) of valve body (15). 4. Remove four bolts (18) and flow control valve body (19). 5. Remove two bolts and cover (22) from valve body. Remove O-ring seal (23) from cover. Inspect the seal and make a replacement if necessary. Remove spring (21) and valve (20) from valve body. 6. Remove two bolts and cover (28) from valve body. Remove O-ring seal (27) from cover. Inspect the seal and make a replacement if necessary. Remove valve (25) and spring (26) from valve body. Remove and inspect O-ring seals (24). Make replacements if necessary.Assemble Elevator Control Valve
1. Install spring and valve into valve body (2). Put a new O-ring seal on cover (4). Install the cover and two bolts (3). Install new O-ring seals (1) on valve body. 2. Install valve (6) and spring (5) into flow control valve body. Put a new O-ring seal (8) on cover (7). Install cover on valve body with two bolts. 3. Install flow control valve on valve body with four bolts (9). 4. Install pilot valve (12), sleeve (11) and spring (14) into body (10). Put