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1. Service Repair Manual
Models
M313C WHEELED Excavator

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Product: WHEELED EXCAVATOR
Model: M313C WHEELED EXCAVATOR BDR
Configuration: M313C Excavator BDR00001-02000 (MACHINE) POWERED BY 3054 Engine
Disassembly and Assembly
M313C Excavator Machine Systems
Media Number -RENR9201-02 Publication Date -01/02/2009 Date Updated -12/02/2009
i01916343
Main Control Valve - Disassemble
SMCS - 5051-015-MV; 5051-015
Disassembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 7X-2533 Bolt 1
Start By:
a. Remove the main control valve. Refer to Disassembly and Assembly, "Main Control Valve
- Remove".
Illustration 1 g00998411
1. Position main control valve (1) on wood blocks.
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3. Illustration 2 g00998412
2. Remove bolts (2), plate (3), and valve (4).
Illustration 3 g00998413
3. Remove O-ring seals (5).
Illustration 4 g00998414
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4. 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 relief valves (6), plug (9), O-ring seal (8), and spring (7).
Illustration 5 g00998415
5. Install Tooling (A) in order to remove compensator spool (10).
Illustration 6 g00998417
6. Remove cap (11) and O-ring seals (12) from relief valve (6).
7. Remove backup ring (13), if necessary.
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5. Illustration 7 g00998418
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 screw (14), nut (15), spring (16), poppet (17), housing (18), O-ring seal (19), ring
(21), and O-ring seal (20) from valve housing (6).
Illustration 8 g00998419
Personal injury can result from being struck by parts propelled by a
released spring force.
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6. Make sure to wear all necessary protective equipment.
Follow the recommended procedure and use all recommended tooling to
release the spring force.
9. Remove spring (22), spring (22A), poppet (23), and valve (24) from valve housing (6).
10. Repeat Step 6 through Step 9 for the opposite relief valve.
Illustration 9 g00998420
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.
11. Remove plug (27), spring (26), and cone (25).
12. Repeat Step 11 for the opposite side.
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7. Illustration 10 g00998421
13. Remove valve (29), O-ring seal (28), and O-ring seal (28A).
14. Remove cap (32), nut (31), and O-ring seals (30).
Illustration 11 g00998422
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.
15. Remove bolts (38), housing (37), stud (36), spring (35), retainer (34), and O-ring seal (33).
16. Repeat Step 14 through Step 15 for the opposite side.
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8. Illustration 12 g00998423
17. Remove spool (39).
Illustration 13 g00998424
18. Remove bolts (40) and valve group (41).
Illustration 14 g00998426
19. Remove O-ring seals (43).
20. Cut cable strap (42).
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9. Illustration 15 g00998427
21. Remove solenoid (45) and O-ring seals (44).
Illustration 16 g00998428
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 (46), actuator group (47), spring (48), retainer (49), O-ring seal (50), and O-
ring seal (50A).
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10. Illustration 17 g00998429
23. Remove spool (51).
Illustration 18 g00998430
24. Remove plugs (52) and O-ring seals (52A).
25. Remove plug (52B) and O-ring seal (52C).
Illustration 19 g00998433
26. Remove relief valve (53) and cap (53A).
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11. Illustration 20 g00998432
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.
27. Remove nut (54), screw (55), O-ring seal (56), spring (57), and poppet (58) from relief
valve (53).
28. Remove O-ring seal (59) and O-ring seal (59A).
29. Remove backup rings (60), if necessary.
Illustration 21 g00998434
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12. 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.
30. Remove plug (64), O-ring seal (63), spring (62), and valve (61).
Illustration 22 g00998435
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.
31. Remove plug (65), O-ring seal (66), spring (67), and cone (68).
32. Remove plug (69) and O-ring seal (70).
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13. Illustration 23 g00998636
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.
33. Remove cap (77), bolts (76), O-ring seals (75), nut (74), plate (73), O-ring seal (72), and
stud (71).
Illustration 24 g00998637
34. Remove spring (79) and retainer (78).
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14. Illustration 25 g00998638
35. Remove plug (82), O-ring seal (81), and spool (80).
Illustration 26 g00998639
36. Remove O-ring seals (83).
Illustration 27 g00998641
37. Remove relief valves (84).
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15. Illustration 28 g00998642
38. Remove relief valves (85).
39. Repeat Step 6 through Step 9 in order to disassemble relief valves (85) and relief valves
(84).
Illustration 29 g00998643
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.
40. Remove plugs (88), springs (87), and cones (86).
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16. Illustration 30 g00998645
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 plugs (91), springs (90), and cones (89).
Illustration 31 g00998646
42. Remove cap (96), nut (95), O-ring seals (94), and valve (93).
43. Remove O-ring seals (92) from valve (93).
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17. Illustration 32 g00998647
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.
44. Remove bolts (102), housing (101), stud (100), spring (99), retainer (98), and O-ring seal
(97).
Illustration 33 g00998648
45. Repeat Step 42 through Step 44 for actuator assemblies (103).
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18. Illustration 34 g00998650
46. Repeat Step 42 through Step 44 for actuator assemblies (104).
Illustration 35 g01004227
47. Remove O-ring seals (105) from valve (106).
Illustration 36 g00998651
48. Remove cap (109), nut (108), O-ring seal (107), and valve (106).
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19. Illustration 37 g00998652
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.
49. Remove bolts (115), housing (114), stud (113), spring (112), retainer (111), and O-ring seal
(110).
Illustration 38 g00998653
50. Repeat Step 47 through Step 49 for actuator assembly (116).
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20. Illustration 39 g00998654
51. Repeat Step 48 through Step 49 for actuator assembly (117).
Illustration 40 g00998655
52. Remove relief valves (118).
Illustration 41 g00998657
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21. 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.
53. Remove cap (119), O-ring seal (120), spring (121), and valve (122) from housing (123).
54. Remove the backup rings, if necessary.
55. Remove O-ring seals (124) from housing (123).
56. Repeat Step 53 through Step 55 for the remaining relief valve (118).
Illustration 42 g00998659
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.
57. Remove plug (127), spring (126), and cone (125).
58. Repeat Step 57 for the opposite side.
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22. Illustration 43 g00998661
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.
59. Remove plug (131), O-ring seal (130), spring (129), and cone (128).
Illustration 44 g00998663
Personal injury can result from being struck by parts propelled by a
released spring force.
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23. Make sure to wear all necessary protective equipment.
Follow the recommended procedure and use all recommended tooling to
release the spring force.
60. Remove plug (135), O-ring seal (134), spring (133), and cone (132).
Illustration 45 g00998929
61. Remove adapter assembly (136) and valve assembly (137).
Illustration 46 g00998930
62. Remove O-ring seals (138) from adapter (136).
63. Remove backup ring (139), if necessary.
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24. Illustration 47 g00998931
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.
64. Remove plug (142), spring (141), and cone (140).
Illustration 48 g00998932
Personal injury can result from being struck by parts propelled by a
released spring force.
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26. Make sure to wear all necessary protective equipment.
Follow the recommended procedure and use all recommended tooling to
release the spring force.
65. Remove nut (143), retaining ring (144), screw (145), O-ring seal (146), shims (147), spring
(148), and poppet (149) from valve housing (150).
Illustration 49 g00998933
66. Remove O-ring seals (151) from valve housing (150).
67. Remove backup rings (152), if necessary.
Illustration 50 g00998934
Note: Mark the location of the spools for installation purposes.
68. Remove spools (153).
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27. Illustration 51 g00998935
69. Remove plugs (155) and O-ring seals (154).
Illustration 52 g00998936
70. Remove valve assembly (156).
Illustration 53 g00998937
71. Remove O-ring seals (157) from valve assembly (156).
72. Remove backup rings (158), if necessary.
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28. Illustration 54 g00998939
73. Remove plug assembly (159).
Illustration 55 g00998940
74. Remove O-ring seals (160) from plug assembly (159).
75. Remove backup ring (161), if necessary.
Illustration 56 g00998941
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