FLANGE A 9V9493 - Caterpillar

2. Remove the bolts that hold manifold (1) to control valve (2). Remove the O-ring from manifold (1).3. Remove the bolts that hold elbow (3) to control valve (2). Remove the O-ring from elbow (3). Put identification marks on the rest of the hoses attached to control valve (2) for proper installation.4. Disconnect the rest of the hoses attached to control valve (2). Use two persons to remove the control valve and plate. The weight of the control valve and plate is 33 kg (72 lb.).5. Remove the bolts that hold plate (4) to the frame and remove control valve (2).6. Remove plate (4) from control valve (2). The following steps are for installation of the steering control valve.7. Install plate (4) on control valve (2).8. Install control valve (2) to the frame.9. Connect the hoses to control valve (2).10. Install the O-ring in elbow (3). Install elbow (3) to control valve (2).11. Install the O-ring in manifold (1). Install manifold (1) to control valve (2).12. Fill the steering hydraulic tank with oil to the correct level. See the Maintenance Guide.Disassemble And Assemble Steering Control Valve
Start By:a. remove steering control valve1. Remove the fittings from the steering control valve. 2. Remove plugs (2), (3), and (4) from steering control valve (5). Remove the cover plate from port (1). Remove the seals from the cover plate and the plugs. 3. Remove the orifice from port (8). Tag the orifice for proper installation.4. Remove valve (13) and spring (12).5. Remove valve assembly (6) and seal (7). Later trucks may not have valve assembly (6).6. Remove bolts (9), bolts (10) and covers (11) from both ends of the steering control valve. 7. Remove plate (14). Remove six O-ring seals (24) from the plate.8. Remove stops (15), springs (16), springs (17), and guides (18), from each end of spool (19). Remove spool (19).9. Remove spring (23) and spool assembly (20).10. Remove the orifices from ports (21) and (22). Tag the orifices for proper installation. 11. Remove plate (29). Remove four O-ring seals (30) from the plate.12. Remove stop (27) and spring (26) from spool (25). Remove spool (25) from the steering control valve.13. Use tooling (A) to remove valve assemblies (28) from each end of the steering control valve. 14. Remove the orifices from spool (25) and from both ends of spool (19). Tag the orifices for proper installation. 15. Disassemble valve assemblies (28) as follows: A small amount of spring pressure is present behind washer (32) and is released when nut (31) is removed.a. Remove nut (31), washer (32), and spring (34). Remove O-ring seal (36). Remove spool (37) from body (35). A small amount of spring pressure is present behind body (43).b. Remove body (43) from spool (37). Remove spring (39) and spool (38) from spool (37).c. Remove O-ring seal (42), screw (33), spring (41), and valve (40) from body (43). 16. Disassemble valve assembly (20) as follows:a. Remove retaining rings (51) and (52) and pins (54) and (55). Remove