Caterpillar Cat 336D2 L Excavator (Prefix ZCT) Service Repair Manual Instant Download.pdf

Service Repair Manual
Models
336D2 L Excavator

Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 336D2 L EXCAVATOR ZCT
Configuration: 336D2 L Excavator ZCT00001-UP (MACHINE) POWERED BY C9 Engine
Disassembly and Assembly
330D, 336D, 336D2, 340D and 340D2 Excavators and 336D MHPU Mobile Hydraulic
Power Unit Machine Systems
Media Number -RENR8648-30 Publication Date -01/03/2015 Date Updated -15/08/2018
i03898826
Main Hydraulic Pump - Disassemble
SMCS - 5070-015
Disassembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A
156-7100 Slide Hammer Puller Gp 1
4C-5656 Adapter 1
B 138-7574 Link Bracket 2
C 1P-1855 Retaining Ring Pliers 1
D 1P-1863 Retaining Ring Pliers 1
E 5P-5197 Retaining Ring Pliers As 1
F 5P-4758 Retaining Ring Pliers As 1
Start By:
A. Remove the main hydraulic pump. Refer to Disassembly and Assembly, "Main Hydraulic
Pump - Remove".
B. Remove the gear pump. Refer to Disassembly and Assembly, "Gear Pump (Pilot) -
Remove".
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336D2 L Excavator ZCT00001-UP (MACHINE) POWERED BY C9 Engine(SEBP65...
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https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...

Illustration 1 g01212500
1. Remove bolts (1) , sensor (2) , the O-ring seal, and the backup ring.
2. Remove bolts (3) , sensor (4) , the O-ring seal, and the backup ring.
3. Remove bolts (5) and housing (6) .
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4. Remove O-ring seals (7) .
5. Remove bolts (9) , solenoid (8) , and the O-ring seals.
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6. Remove bolts (10) and valve (11) .
8. Remove bolts (13) , cover (14) , and the O-ring seals.
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9. Remove bolts (15) and cover (16) .
10. Use Tooling (A) in order to remove plug (18) and plug (17) .
5/15
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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 spring (23) , spring (24) , and retainer (25) .
14. Remove spring (26) , sleeve (27) , and piston (28) .
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15. Remove plug (29) .
16. Remove spring (30) .
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17. Use Tooling (C) in order to remove retaining ring (40) .
19. Remove retainer (39) and spring (38) .
20. Remove lever (31) , lever (32) , and lever (33) .
21. Remove spool (35) , spool (37) , sleeve (36) , and spool (41) .
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22. Repeat Steps 6 through Steps 21 for valve (42) .
23. Attach Tooling (B) and a suitable lifting device to head assembly (45) .
24. Remove bolts (44) and bolts (43) .
25. Remove head assembly (45) .
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26. Remove port plates (47) and barrels (48) .
27. Remove gasket (46) .
28. Remove springs (49) .
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336D2 L Excavator ZCT00001-UP (MACHINE) POWERED BY C9 Engine(SEBP...
2020/6/7

29. Remove bearings (52) , pistons (50) , and retainer (51) .
30. Remove plates (53) and swashplates (54) .
31. Use Tooling (D) in order to remove retaining ring (82) . Remove seal (81) . Remove the O-
ring seal. Attach Tooling (B) and a suitable lifting device to cover (56) .
32. Remove bolts (55) and cover (56) .
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33. Use Tooling (D) in order to remove retaining ring (59) .
34. Remove shim (60) and gear (57) .
35. Use Tooling (E) in order to remove retaining ring (58) .
36. Remove shim (62) , gear (57A) , and the gasket (61) .
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37. Remove shim (66) .
38. Use Tooling (F) in order to remove retaining ring (63) .
39. Use Tooling (F) in order to remove retaining ring (65) .
40. Remove shaft assembly (64) .
41. Remove shaft assembly (67) .
42. Remove bolts (68) and bearing carriers (69) .
43. Use Tooling (D) in order to remove retaining ring (70) from bearing (72) .
44. Use Tooling (D) in order to remove retaining ring (71) .
45. Use a suitable press in order to remove bearing (72) from shaft assembly (67) .
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46. Use Tooling (D) in order to remove retaining ring (73) from bearing (74) .
47. Use a suitable press in order to remove bearing (74) from shaft assembly (64) .
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Note: Record the distance between nuts (77) and screws (76) for assembly purposes.
48. Remove nuts (77) and screws (76) .
49. Remove bolts (75) and covers (78) .
50. Remove plugs (79) and the O-ring seals.
51. Remove pistons (80) .
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Sun Jun 7 07:31:02 UTC+0800 2020
15/15
2020/6/7

Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 336D2 L EXCAVATOR ZCT
Configuration: 336D2 L Excavator ZCT00001-UP (MACHINE) POWERED BY C9 Engine
Disassembly and Assembly
330D, 336D, 336D2, 340D and 340D2 Excavators and 336D MHPU Mobile Hydraulic
Power Unit Machine Systems
Media Number -RENR8648-30 Publication Date -01/03/2015 Date Updated -15/08/2018
i04041156
Main Hydraulic Pump - Assemble
SMCS - 5070-016
Assembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
B 138-7574 Link Bracket 2
C 1P-1855 Retaining Ring Pliers 1
D 1P-1863 Retaining Ring Pliers 1
E 5P-5197 Retaining Ring Pliers As 1
F 5P-4758 Retaining Ring Pliers As 1
G 1P-0520 Driver Gp 1
H 1P-1861 Retaining Ring Pliers 1
J - M6x2x50mm Guide Pin 2
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1. Install pin assemblies (81).
2. Install pistons (80) into pin assemblies (81).
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3. Install plugs (79) and the O-ring seals.
4. Install covers (78) and bolts (75).
5. Tighten nuts (77) and screws (76).
6. Raise the temperature of bearing (74).
7. Install bearing (74).
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8. Use Tooling (D) in order to install retaining ring (73).
9. Raise the temperature of bearing (72).
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13. Install bearing carriers (69) and bolts (68).
14. Install shaft assembly (67).
15. Install shaft assembly (64).
16. Use Tooling (F) in order to install retaining ring (65).
17. Use Tooling (F) in order to install retaining ring (63).
18. Install shim (66).
19. Install gasket (61), gear (57A), and shim (62).
20. Use Tooling (E) in order to install retaining ring (58).
21. Install gear (57A) and shim (60).
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23. Install the O-ring seal into cover (56). Use Tooling (G) to install seal (82). Use Tooling (H)
in order to install the retaining ring (83).
Note: In order to install seal (82) with the main hydraulic pump assembled, Refer to Service
Magazine, SEPD0930, "New Seals in the Main Hydraulic Pump Prevent Oil Leaks from the
Pump Shaft".
24. Attach Tooling (B) and a suitable lifting device to cover (56).
25. Install a lubricated protective sleeve over the shaft in order to protect the seal during
installation of the cover. Install cover (56) and bolts (55).
26. Install swashplates (54) and plates (53).
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27. Install springs (49).
29. Install pistons (50) and retainer (51).
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30. Use a suitable string in order to retain the pistons during installation.
31. Install barrels (48).
32. Install port plates (47) onto head assembly (45).
33. Install gasket (46).
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34. Use Tooling (B) and a suitable lifting device in order to install head assembly (45).
35. Install bolts (44) and bolts (43).
36. Install spool (35), spool (37), sleeve (36), and spool (41).
37. Install lever (33), lever (32), and lever (31).
38. Install spring (38) and retainer (39).
9/16
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39. Use Tooling (C) in order to install retaining ring (40).
40. Install O-ring seals (34).
41. Install spring (30).
42. Install plug (29).
10/16
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Caterpillar Cat 336D2 L Excavator (Prefix ZCT) Service Repair Manual Instant Download.pdf

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