TORQUE CONVERTER GP 3P1630 - Caterpillar

1. Use two men to remove the steering control valve cover (1) from the frame. Weight of cover is 27 kg (60 lb.). 2. Put identification on tube (3) and hose (2) assemblies for installation purposes. 3. Remove cotter pin and nut (4) that fastens linkage (5) to the steering control valve spool. 4. Remove mounting bolts (6) and the steering control valve (7) from frame. The weight of the valve is 22 kg (48 lb.).5. Put the steering control valve (5) in position and install the mounting bolts (6).6. Make an alignment of the control linkage (5) with the steering control valve spool. Install bolt, nut and cotter pin.7. Install hose (2) and tube (3) assemblies to the steering control valve.8. Install cover (1) in position on frame.Disassemble Steering Control Valve
START BY:a) remove steering control valve 1. Remove plug (3), shims (5), spring (2) and valve (1) from body. Remove O-ring seal (4) from plug. 2. Remove four bolts (7) and cover (6) from valve body. 3. Remove four O-ring seals (9) from cover (6).4. Remove spool assembly (8) from valve body. 5. Remove bolt (15), retainers (18) and (14), springs (13), retainer (12), washer (17), retainer (11) and shims (16) from valve spool (10). 6. Remove valve (21), springs (23) and valve (22). Remove O-ring seal (20) from valve assembly (21) and O-ring seal (19) from valve body. 7. Remove four bolts and cover (24) from body. Remove O-ring seals (26) from cover (24) and O-ring seal (25) from body. 8. Remove lip type seal from cover (24) with tooling (A). 9. Remove spacer (27) from body. Remove O-ring seal (28) from spacer (27). 10. Remove pilot (29) from the body with tool (B). 11. Remove plug (32) and O-ring seal (30) from it. Remove plug (31) from inside the body. 12. Remove plug assembly (34) and ball (35) from body. Remove seat assembly (33) from body with tool (C). Remove O-ring seals from both the plug and seat assemblies. 13. Turn the body over and remove plug (36), spring (37) and ball (38) from body. Remove O-ring seal from plug.14. If necessary, remove any plugs and their O-ring for cleaning purposes.Assemble Steering Control Valve
1. Inspect O-ring seals and make any replacements if necessary.2. Install O-ring seal on plug (1). Install ball (3), spring (2) and plug (1) in body. 3. Install O-ring seals on plug (4) and seat (6). Put hydraulic oil on the seals of plug and seat. Install seat (6), ball (5) and plug (4) in body.4. Install plug (7) in body and tighten to a torque of 14 3 N m (10 2 lb.ft.). Install O-ring seal (8) on plug and plug (9) in body. 5. Install pilog (10) in body with tooling (A). Be sure the pilot is to base of the body counterbore. 6. Install O-ring seal (12) on spacer (11). Install spacer in body. 7. Install lip type seal in cover with tooling (A). The lip of