M314F, M316F, M318F, M320F and M322F Wheeled Excavator and Material Handler Machine Systems Caterpillar

Disassembly Procedure

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Illustration 1	g06037657

1. Remove bolt (3), washer (2), and hub (1).
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   Illustration 2	g06037661

2. Remove adapter (6).

3. Remove bolts (4), O-ring seal (5), and flange (7).
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   Illustration 3	g06037659

4. Remove O-ring seal (8) from flange (7).
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   Illustration 4	g06037664

5. Remove plug (9) and the O-ring seal.

6. Remove Elbow assembly (10) and the O-ring seal.
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   Illustration 5	g06037669

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   Illustration 6	g06037667

7. Remove plugs (11), (12), (13), and the O-ring seals.

8. Remove screen (14).
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   Illustration 7	g06037663

9. Remove bolts (15), cover (16), and the O-ring seal.
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   Illustration 8	g06037670

10. Remove screws (17), plate (18), and the O-ring seal.
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    Illustration 9	g06037671

11. Remove adapter (19), plug (20), and the O-ring seals.
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    Illustration 10	g06037673

12. Rotate the pump with the shaft pointing upwards.

13. Remove nut (21) and the O-ring seal.
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    Illustration 11	g06037674

14. Remove solenoid assembly (22), cartridge assembly (23), and the O-ring seal.
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    Illustration 12	g06037676

15. Remove bolts (24) and block (25).
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    Illustration 13	g06037677

16. Remove O-ring seal (26) from block (25).
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    Illustration 14	g06037678

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    Illustration 15	g06037680

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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.

17. Apply pressure to sleeve assembly (26). Remove setscrew (27), nut (28), and sleeve assembly (26).

18. Remove spring (32), spool (31), spring (30), and cup (29) from sleeve assembly (26).

19. Remove guide (28) and spring (27) from the control assembly.
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    Illustration 16	g06037682

20. Remove rings (33) from sleeve assembly (26).
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    Illustration 17	g06037683

21. Remove bolts (34) and control assembly (35).
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    Illustration 18	g06037685

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    Illustration 19	g06037684

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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 elbow assembly (36), gasket (37), and pins (38) from control assembly (35).

23. Remove cap (39), adjustment screw (40), and nut (41) from adapter (42).

24. Remove adapter (42), O-ring seal (43), spring (44), spring (45), and spring adapter (46) from control assembly (35).

25. Remove plug (54), O-ring seal (53), spring (52), adapter (51), spool (50), and pin (49) from control assembly (35).

26. Remove setscrew (55), pin (56), O-ring seal (57) and lever (48) from control assembly (35).
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    Illustration 20	g06037686

27. Remove bushing (58).
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    Illustration 21	g06037687

28. Remove piston pad (59) from bushing (58).
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    Illustration 22	g06037688

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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 bolts (59).

30. Use Tooling (A) and a suitable lifting device to remove flange assembly (60). The weight of flange assembly (60) is approximately 36 kg (80 lb).
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    Illustration 23	g06037690

31. Raise the temperature of the flange assembly to remove screws (63).

32. Remove bearings (64), hold down screws (61), and shaft assembly (62).
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    Illustration 24	g06037848

33. Remove retaining ring (65).

34. Use a suitable press to remove bearing (66) from shaft assembly (62).
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    Illustration 25	g06037851

35. Remove gasket (67) from pump body (68).
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    Illustration 26	g06037858

36. Insert Tooling (B) into barrel assembly (69).

    Note: Be careful not to damage the retainer ball w/springs.

37. Use a suitable hoist to remove barrel assembly (69) from pump body (68). The weight of barrel assembly is approximately 27.2 kg (60 lb).
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    Illustration 27	g06038076

38. Remove stroking piston (71) and counter-piston (72) from swashplate (70).

39. Remove swashplate (70) from barrel assembly (69).
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    Illustration 28	g06038087

40. Remove used Teflon seal (73) and O-ring seal (74) from stroking piston (71).
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    Illustration 29	g06038090

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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.

41. Remove used Teflon seal (75) and O-ring seal (76) from counter-piston (72).
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    Illustration 30	g06038103

42. Remove swashplate (70), retainer ball w/springs (77), and shims (78) from barrel assembly (69).
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    Illustration 31	g06038108

43. Remove bolts (81) and segments (82) from swashplate (70).

44. Remove pistons (80) and retainer plate (79) from the contact surface of swashplate (70).

45. Remove pistons (88) from retainer plate (79).

46. Remove throttle screws (84) from swashplate (70).

47. Remove alignment pins (83) from swashplate (70).
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    Illustration 32	g06038120

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    Illustration 33	g06038125

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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.

48. Use Tooling (C) and a suitable press to apply pressure onto washer (86).

49. Remove retaining ring (85), washer (86), spring (87), and washer (88) from barrel assembly (69).
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    Illustration 34	g06038130

50. Remove port plate (89) and centering plate (90).
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    Illustration 35	g06038136

51. Use a suitable press and Tooling (C) to remove bearing (91).

52. Remove pin (92).
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    Illustration 36	g06038143

53. Use Tooling (D) to remove dowels (93).

54. Measure and note the dimensions of swashplate limiters (95) for the later installation.

55. Remove nuts (94) and swashplate limiters (95).