DISC 0065872 - Caterpillar

1. Remove the right turn neutralizer valve (1) and the O-ring seals from the main valve body.
Spring (4) is under tension and can push seat (6) out of the valve body with force. Use care when valve (1) is removed so seat (6) does not come out of the valve body and cause bodily injury.
2. Remove seat (6), valve (5), spring (4), shims (3) and plug (2) from the valve body. Remove the O-ring seals from plug (2), seat (6) and the valve body. 3. Remove plug assembly (10), the O-ring seal, spring and ball from the neutralizer valve body.4. Remove plug (9) and the O-ring seal.5. Remove boot (8) from the valve stem. Remove plug (7), the O-ring seal and spring. Remove the bolt, lockwasher and washer that hold the valve stem. Remove the valve stem from the neutralizer valve body. 6. Remove seal (11), the five plugs (12) and O-ring seals from the neutralizer valve body. 7. Remove spring (15) and valve (13) from the main valve body. Remove spring (15) and the shims from valve (13).8. Remove valve stem assembly (16) and pin (14) from the main valve body. 9. To disassemble valve stem assembly (16), remove the bolt, lockwasher, washer, retainer (19), spring (18), spacer (17), the retainer and shims from valve stem (20). 10. Remove left turn neutralizer valve (21) and the O-ring seals from the main valve body. 11. Remove spacer (22) from the main valve body. 12. Remove plug assembly (25), the O-ring seal, spring and ball from the neutralizer valve body.13. Remove boot (23) from the valve stem. Remove plug (24), the O-ring seal and spring. Remove the bolt, lockwasher and washer that hold the valve stem. Remove the valve stem from the neutralizer valve body.14. Remove the lip type seal for the valve stem from the neutralizer valve body. 15. Remove plug assembly (27), the O-ring seal, spring and ball from the neutralizer valve body.16. Remove plugs (26) and (28), fitting (29) and the O-ring seals from the neutralizer valve body. 17. Remove selector valve (30) and the O-ring seals from the main valve body. 18. Remove plug (33), the O-ring seal, spring and valve stem. Remove the plug and O-ring seal from the other end of the selector valve body.19. Remove fittings (31), plugs (32) and the O-ring seals from the selector valve body. 20. Remove five plugs (34) and the O-ring seals from the main valve body.21. Remove plug (35), the O-ring seal, seat, ball and seat. Remove the O-ring seals from the seats.Assemble Steering Control Valve
All parts must be kept clean. Use paper free of lint and clean solvent to clean the parts. Put clean hydraulic oil on all of the parts before they are assembled.
1. Install the five plugs (2) and O-ring seals in the main valve body.2. Install the O-ring seal on the seat for ball (1) and install it in the main valve body. Put the O-ring seal on seat (3). Install ball