Caterpillar Cat M318C WHEELED Excavator (Prefix H2D) Service Repair Manual (H2D00001 and up).pdf

Service Repair Manual
Models
M318C WHEELED Excavator

Shutdown SIS
Previous Screen
Product: WHEELED EXCAVATOR
Model: M318C WHEELED EXCAVATOR H2D
Configuration: M318C Excavator H2D00001-UP (MACHINE) POWERED BY 3056E Engine
Disassembly and Assembly
M318C and M322C Excavators Machine Systems
Media Number -RENR9207-02 Publication Date -01/12/2006 Date Updated -05/12/2006
i01904844
Travel Motor - Disassemble
SMCS - 4351-015; 79PC-015
Disassembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 138-7575 Link Bracket 2
B 1P-1861 Retaining Ring Pliers 1
C 1U-7600 Slide Hammer Puller Gp 1
D 8H-0663 Bearing Puller Gp 1
E 1P-1857 Retaining Ring Pliers 1
Start By:
a. Remove the travel motor. Refer to Disassembly and Assembly, "Travel Motor - Remove".
Note: Cleanliness is an important factor. Before you begin the disassembly procedure, the exterior
of the components should be thoroughly cleaned. This will help to prevent dirt from entering the
internal mechanism. Precision components can be damaged by contaminants or by dirt. Perform
disassembly procedures on a clean work surface. Keep components covered and protected at all
times.
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https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/siswe...

Illustration 1 g00992625
1. Attach Tooling (A) and a suitable lifting device to head assembly (2).
2. Remove bolts (1).
3. Remove housing assembly (2).
5. Remove valve (4).
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6. Remove O-ring seals (5).
Personal injury can result from parts and/or covers under spring
pressure.
Spring force will be released when covers are removed.
Be prepared to hold spring loaded covers as the bolts are loosened.
8. Remove valve (7), plug (8), and the O-ring seal.
10. Remove spring (10) and spool (11).
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11. Remove plug (12) and the O-ring seal.
12. Remove plug (13).
pressure.
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13. Remove cover (14).
15. Remove cover (15).
pressure.
16. Remove spring (17).
17. Remove bushing (18).
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18. Remove O-ring seals (19).
19. Remove O-ring seal (20).
20. Use Tooling (E) in order to remove retaining ring (21).
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Note: Record the distance from the locknut to the end of the screw for installation purposes.
22. Remove screw (23) and dowel (24).
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pressure.
24. Remove bushing (27) and spring (26).
25. Remove cap (28).
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27. Remove relief valve (30).
28. Repeat Steps 25 through 27 for the opposite side.
29. Remove O-ring seals (31), O-ring seal (32), and O-ring seal (33).
30. Remove bolt (34), the piston, and the setscrew.
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31. Remove plate (36).
32. Remove pin (35) and spool (37).
33. Remove cap (38), the locknut, and the screw.
Note: Measure the distance between the nut and the end of the set screw for installation
purposes.
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36. Remove barrel (41) from the piston assembly.
37. Remove O-ring seal (42) from housing (43).
38. Remove spring (44) and washer (45) from barrel (41).
39. Use Tooling (B) in order to remove retaining ring (46).
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40. Remove shim (47).
41. Use Tooling (C) in order to remove seal (48).
42. Use a suitable press in order to remove rotor assembly (49).
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44. Remove pistons (51), center pin (53), and retainer plate (52).
45. Remove rings (54) from pistons (51).
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46. Use Tooling (B) in order to remove retaining ring (55).
47. Remove shim (56).
48. Place the rotor assembly in a suitable press. Use Tooling (D) in order to remove shaft (57)
from bearing (58), shim (59), and bearing (60).
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
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Shutdown SIS
Previous Screen
Product: WHEELED EXCAVATOR
Model: M318C WHEELED EXCAVATOR H2D
Configuration: M318C Excavator H2D00001-UP (MACHINE) POWERED BY 3056E Engine
Disassembly and Assembly
M318C and M322C Excavators Machine Systems
Media Number -RENR9207-02 Publication Date -01/12/2006 Date Updated -05/12/2006
i01904846
Travel Motor - Assemble
SMCS - 4351-016; 79PC-016
Assembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 138-7575 Link Bracket 2
B 1P-1861 Retaining Ring Pliers 1
E 1P-1857 Retaining Ring Pliers 1
Note: Cleanliness is an important factor. Before you begin the assembly procedure, the exterior of
the components should be thoroughly cleaned. This will help to prevent dirt from entering the
internal mechanism. Precision components can be damaged by contaminants or by dirt. Perform
assembly procedures on a clean work surface. Keep components covered and protected at all
times.
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1. Raise the temperature of bearing (58) and bearing (60).
2. Lower the temperature of shaft (57).
3. Install bearing (60), shim (59), and bearing (58) onto shaft (57).
4. Install shim (56).
5. Use Tooling (B) in order to install retaining ring (55).
6. Install rings (54) onto piston (51).
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7. Install pistons (51), center pin (53), and retainer plate (52).
8. Install bolts (50).
9. Install rotor assembly (49).
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10. Install seal (48).
11. Install shim (47).
12. Use Tooling (B) in order to install retaining ring (46).
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Improper assembly of parts that are spring loaded can cause bodily
injury.
To prevent possible injury, follow the established assembly procedure
and wear protective equipment.
13. Install washer (45) and spring (44) into barrel (41).
14. Install barrel (41) into the piston assembly.
15. Install O-ring seal (42) into housing (43).
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16. Install plug (40) and the O-ring seal.
18. Install cap (38), the locknut, and the screw into the original position.
19. Install pin (35) and spool (37).
20. Install plate (36).
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21. Install the piston, the setscrew, and bolt (34).
22. Install O-ring seals (31), O-ring seal (32), and O-ring seal (33).
23. Install relief valve (30).
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25. Install cap (28).
26. Repeat Steps 23 through 25 on the opposite side.
injury.
27. Install spring (26) and bushing (27).
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29. Install dowel (24) and screw (23) into the original position.
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31. Use Tooling (E) in order to install retaining ring (21).
32. Install O-ring seal (20).
33. Install O-ring seals (19).
injury.
34. Install bushing (18).
35. Install spring (17).
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36. Position cover (15).
37. Install bolts (16).
38. Install cover (14).
39. Install plug (13).
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Caterpillar Cat M318C WHEELED Excavator (Prefix H2D) Service Repair Manual (H2D00001 and up).pdf

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Caterpillar Cat M318C WHEELED Excavator (Prefix H2D) Service Repair Manual (H2D00001 and up).pdf