D6N Track-Type Tractor Machine Systems Bulldozer Control Valve - Disassemble Caterpillar

Disassembly Procedure

Start By:

1. Remove the bulldozer control valve. Refer to Disassembly and Assembly, "Bulldozer Control Valve - Remove".

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Illustration 1	g00989537

1. Remove valve (1) and nuts (2).
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   Illustration 2	g00989540

2. Remove cover (3) and ripper valve (4) from valve bank (5).
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   Illustration 3	g00989541

3. Remove O-ring seals (6) and shims (7) from ripper valve (4).
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   Illustration 4	g00989542

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   Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force.

4. Remove bolts (14), housing (13), bolt (12), spacer (11), retainer (10), spring (9), and retainer (8).
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   Illustration 5	g00989543

5. Remove bolts (15), guard (16), retainer (17), filter (18), spool (19), and O-ring seals (20).
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   Illustration 6	g00989544

6. Remove seat (25), O-ring seal (24), ring (23), O-ring seal (22), and ball (21).
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   Illustration 7	g00989545

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   Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force.

7. Remove plug (26), O-ring seal (27), valve (28), and springs (29) and (30).
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   Illustration 8	g00989546

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   Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force.

8. Remove plug (40), O-ring seal (39), retainer (38), washer (37), spring (36), housing (35), O-ring seal (34), ring (33), O-ring seal (32), and valve (31).
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   Illustration 9	g00989547

9. Remove housing (46), O-ring seal (45), ring (44), O-ring seals (43), and (42), and ring (41).
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   Illustration 10	g00989548

10. Remove O-ring seals (47), shims (49), and nuts (50) from manifold assembly (48). Remove manifold assembly (48) from valve bank (5).
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    Illustration 11	g00989549

11. Remove studs (53), plugs (52), and O-ring seals (51) from manifold assembly (48).
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    Illustration 12	g00989550

12. Remove O-ring seals (56), shims (55), and angle valve (54) from valve bank (5).
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    Illustration 13	g00989551

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    Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force.

13. Remove bolts (63), housing (62), bolt (61), spacer (60), retainer (59), spring (58), and retainer (57).
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    Illustration 14	g00989552

14. Remove bolts (64), guard (65), retainer (66), filter (67), spool (68), and O-ring seals (69).
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    Illustration 15	g00989553

15. Remove seat (74), O-ring seal (73), ring (72), O-ring seal (71), and ball (70).
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    Illustration 16	g00989554

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    Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force.

16. Remove plug (75), O-ring seal (76), valve (77), and springs (78) and (79).
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    Illustration 17	g00989555

17. Remove valve assembly (83), O-ring seal (82), ring (81), and O-ring seal (80).
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    Illustration 18	g00989556

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    Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force.

18. Remove adjustment screw (94), nut (93), spring (92), poppet (91A), housing (91), O-ring seal (90), ring (89), springs (88) and (87), plunger (86), and valve (85) from housing (84).

19. Repeat Steps 17 and 18 for the remaining valve assembly.
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    Illustration 19	g00989557

20. Remove housing (99), O-ring seal (98A), ring (98), O-ring seals (97) and (96), and ring (95).
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    Illustration 20	g00989558

21. Remove O-ring seals (101), shims (102), and tilt valve (100) from valve bank (5).
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    Illustration 21	g00989559

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    Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force.

22. Remove bolts (109), housing (108), bolt (107), spacer (106), retainer (105), spring (104), and retainer (103).
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    Illustration 22	g00989561

23. Remove bolts (110), guard (111), retainer (112), filter (113), spool (114), and O-ring seals (115).
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    Illustration 23	g00989563

24. Remove seat (120), O-ring seal (119), ring (118), O-ring seal (117), and ball (116).
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    Illustration 24	g00989564

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    Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force.

25. Remove plug (121), O-ring seal (122), valve (123), and springs (124) and (125).
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    Illustration 25	g00989565

26. Remove housing (131), O-ring seal (130), ring (129), O-ring seals (128) and (127), and ring (126).
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    Illustration 26	g00989566

27. Remove O-ring seals (134), shims (133), and lift valve (132) from valve bank (5).
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    Illustration 27	g00993296

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    Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force.

28. Remove bolts (145), housing (143), gasket (144), piston (142), housing (141), shaft assembly (140), retainer (139), washer (138), spring (137), retainer (136), and O-ring seal (135).
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    Illustration 28	g00989568

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    Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force.

29. Remove balls (146) and (147), and spring (148) from shaft (148A).
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    Illustration 29	g00989569

30. Remove bolts (149), guard (150), retainer (151), filter (152), spool (153), and O-ring seals (154).
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    Illustration 30	g00989570

31. Remove seat (159), O-ring seal (158), ring (157), O-ring seal (156), and ball (155).
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    Illustration 31	g00989571

32. Remove housing (165), O-ring seal (164), ring (163), O-ring seals (162) and (161), and ring (160).
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    Illustration 32	g00989572

33. Remove valve assembly (169), O-ring seal (168), ring (167), and O-ring seal (166).
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    Illustration 33	g00989573

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    Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force.

34. Remove adjustment screw (181), nut (180), spring (179), poppet (178), housing (177), O-ring seal (176), ring (175), springs (174) and (173), plunger (172), and valve (171) from housing (170).
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    Illustration 34	g00989575

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    Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force.

35. Remove plug (182), O-ring seal (183), retainer (184), washer (185), spring (186), body (187), O-ring seal (188), ring (189), O-ring seal (190), and valve (191).
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    Illustration 35	g00989576

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    Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force.

36. Remove plug (192), O-ring seal (193), valve (194), and springs (195) and (196).
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    Illustration 36	g00989577

37. Remove studs (199), shims (197), and O-ring seals (198) from relief valve (200).
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    Illustration 37	g00989579

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    Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force.

38. Remove plug (205), seal (204), spring (203), dowel (202), and valve (201).