Caterpillar Cat D6K2 LGP TRACK-TYPE TRACTOR (Prefix JTR) Service Repair Manual Instant Download.pdf

Product: TRACK-TYPE TRACTOR
Model: D6K2 LGP TRACK-TYPE TRACTOR JTR
Configuration: D6K2 LGP Track-Type Tractor JTR00001-UP (MACHINE) POWERED BY C4.4 Engine
Disassembly and Assembly
D6K Track Type Tractor Power Train
Media Number -M0066522-04 Publication Date -01/07/2018 Date Updated -25/07/2018
i06830154
Piston Pump (Hydrostatic) - Disassemble
SMCS - 3203-015; 4306-015
Disassembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A
437-3776 Fixture As. 1
1U-9129(1)
Adapter Plate 1
1U-5750 Engine Stand 1
B FT-1409 Spacer 4
C 422-5472 Lifting Eye Assembly 2
D 1P-0510 Driver Gp 1
E 136-1452 Retaining Ring Pliers As 1
F 8H-0663 Bearing Puller Gp 1
G 1U-7600 Slide Hammer Puller Gp 1
(1)
Part of the Hydraulic Test Bench Tooling.
Start By:
a. Remove the piston pump.
Note: Cleanliness is an important factor. Before the disassembly procedure, clean the exterior of
the component.
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D6K2 LGP Track-Type Tractor JTR00001-UP (MACHINE) POWERED BY C4.4 En...
2021/12/20
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...

Illustration 1 g06133100
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.
1. Use Tooling (B) to secure the piston pump to Tooling (A) or a suitable fixture.
2. Attach Tooling (C) and a suitable lifting device to pump housing (1). Remove bolts (2) and
pump housing (1).
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3. Remove port plate (3) from pump housing (1).
4. Remove O-ring seal (5). Use nylon string to remove rotating assembly (4).
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5. Remove piston assemblies (6) and retainer plate (7) from barrel assembly (8).
6. Remove ball joint (9) from barrel assembly (8).
7. Remove shim (10) and spring assembly (11) from barrel assembly (8).
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8. Use Tooling (D) and a suitable press to compress spring (14). Remove retaining ring (12).
9. Remove washers (13) and spring (14) from barrel assembly (8).
Note: Note the orientation of slide (16) for assembly purposes.
10. Remove swashplate assembly (15).
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11. Remove slide (16) and bearing assemblies (17) from swashplate assembly (15).
12. Remove bearing liners (18).
13. Use Tooling (E) to remove retaining ring (19) from front mounting flange (21).
14. Use Tooling (G) to remove lip seal (20) from front mounting flange (21).
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15. Use Tooling (E) to remove retaining ring (22) from front mounting flange (21).
16. Use a suitable press to remove shaft (23) from front mounting flange (21).
17. Remove retaining ring (24). Use Tooling (F) and a suitable press to remove bearing (25)
from shaft (23).
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18. Reattach pump housing (1) to Tooling (A) with rear mounting flange assembly (27) facing
down.
19. Remove bolts (26). Use a suitable lifting device to remove pump housing (1) from rear
mounting flange assembly (27).
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20. Remove port plate (28) from pump housing (1).
21. Remove O-ring seal (30). Use a nylon string to remove rotating assembly (29).
22. Remove piston assemblies (31) and retainer plate (32) from barrel assembly (33).
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23. Remove ball joint (34) from barrel assembly (33).
24. Remove shim (35) and spring assembly (36) from barrel assembly (33).
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D6K2 LGP Track-Type Tractor JTR00001-UP (MACHINE) POWERED BY C4.4 ...
2021/12/20

25. Use Tooling (D) and a suitable press to compress spring (39). Remove retaining ring (37).
26. Remove washers (38) and spring (39) from barrel assembly (33).
Note: Note the orientation of slide (41) for assembly purposes.
27. Remove swashplate assembly (40).
28. Remove bearing liners (42).
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29. Remove bolts (44) and rear mounting flange (43) from rear mounting flange assembly (27).
30. Remove plate (45) and the O-ring seal.
31. Remove plate (46) and O-ring seal (48) from rear mounting flange assembly (27). Use
Tooling (E) to remove retaining ring (47).
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32. Use a suitable press to remove shaft assembly (49) from rear mounting flange assembly
(27).
33. Remove retaining ring (50). Use Tooling (F) and a suitable press to remove bearing (50)
from shaft assembly (49).
34. Remove plugs (51) and the O-ring seals from pump housing (1).
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35. Remove valve assemblies (55). Remove bolts (52), cap (53), and O-ring seal (54) from the
pump housing. Repeat for the opposite side.
36. Remove O-ring seal (56) from valve assembly (55). Repeat for other valves.
37. Remove solenoid assemblies (57) from pump housing (1).
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38. Remove nuts (58), O-ring seals (59), coil assemblies (60), cartridges (61), and O-ring seals
(62).
39. Remove plugs (63) and the O-ring seals. Remove bolts (65), cover (66), and valve group
(64) from the pump housing. Remove gasket (67). Repeat for the opposite side.
40. Remove nuts (68), O-ring seals (69), coil assemblies (70), cartridges (71), and O-ring seals
(72) from control block (64).
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41. Remove bolt (73), retainer (74), and eccentric pin (75) from control block (64).
42. Remove O-ring seal (76) and spring (77) from eccentric pin (75).
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43. Remove levers (78), spring (79), washer (80), reaction arm (81), and spool (82) from control
block (64). Repeat for opposite side.
44. Remove nut (84) and bolts (83) from cover (85).
45. Use a soft faced hammer to tap adjustment screw (86) from the back side of the pump
housing until the O-ring seal on cover (85) clears the pump housing.
46. Unscrew cover (86) from adjustment screw (86).
Note: Count the number of revolutions required for removal for installation purposes.
47. Remove control piston (86) from pump housing (1). Repeat for opposite side.
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48. Remove ring (87) and guide ring (88) from pump housing (1).
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Product: TRACK-TYPE TRACTOR
Model: D6K2 LGP TRACK-TYPE TRACTOR JTR
Configuration: D6K2 LGP Track-Type Tractor JTR00001-UP (MACHINE) POWERED BY C4.4 Engine
Disassembly and Assembly
D6K Track Type Tractor Power Train
Media Number -M0066522-04 Publication Date -01/07/2018 Date Updated -25/07/2018
i06830157
Piston Pump (Hydrostatic) - Assemble
SMCS - 3203-016; 4306-016
Assembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A
437-3776 Fixture As. 1
1U-9129(1)
Adapter Plate 1
1U-5750 Engine Stand 1
B FT-1409 Spacer 4
C 422-5472 Lifting Eye Assembly 2
D 1P-0510 Driver Gp 1
E 136-1452 Retaining Ring Pliers As 1
F 8H-0663 Bearing Puller Gp 1
G 1U-7600 Slide Hammer Puller Gp 1
H 6V-2055 Grease 1
(1)
Part of the Hydraulic Test Bench Tooling.
Note: Cleanliness is an important factor. Before assembly, thoroughly clean all parts in cleaning
fluid. Allow the parts to air dry. Do not use wiping cloths or rags to dry parts. Lint may be
deposited on the parts which may cause trouble. Inspect all parts. If any parts are worn or
damaged, use new parts for replacement. Dirt and other contaminants can damage the precision
component. Perform assembly procedures on a clean work surface. Always keep components
covered and protected .
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Note: Check the O-ring seals, the gaskets, and the seals for wear or for damage. Replace the
components, if necessary.
1. Install guide ring (88) and ring (87) into pump housing (1). Repeat for the opposite side.
2. Install control piston (87) into pump housing (1).
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3. Install the O-ring seal and cover (85) onto adjustment screw (86).
Note: Install cover (85) to a depth of 22 revolutions if original depth is unknown.
4. Install bolts (83) onto cover (85). Tighten bolts (83) to a torque of 130 ± 13 N·m
(95 ± 10 lb ft).
5. Install nut (84) onto adjustment screw (86). Tighten nut (84) to a torque of 180 ± 18 N·m
(133 ± 13 lb ft). Repeat for opposite side.
6. Install spool (82), reaction arm (81), washer (80), spring (79), and levers (78) into control
block (64). Repeat for opposite side.
7. Install spring (77) and O-ring seal (78) onto eccentric pin (75).
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8. Install eccentric pin (75), retainer (74), and bolt (73) into control block (64).
9. Install O-ring seals (72), cartridges (71), coil assemblies (70), O-ring seals (69), and nuts
(68) from control block (64).
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10. Install gasket (67). Install valve group (64), cover (66), bolts (65), plugs (63), and the O-ring
seals onto the pump housing. Tighten bolts (65) to a torque of 15.5 ± 2 N·m
(137 ± 18 lb in). Repeat for the opposite side.
11. Install O-ring seals (62), cartridges (61), coil assemblies (60), O-ring seals (59), and nuts
(58).
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12. Install solenoid assemblies (57) into pump housing (1).
13. Install O-ring seal (56) onto valve assembly (55). Repeat for other valves.
14. Install O-ring seal (54), cap (53), and bolts (52) into the pump housing. Tighten bolts (52) to
a torque of 130 ± 13 N·m (96 ± 10 lb ft). Install valves (55). Tighten valves (55) to a torque
of 250 N·m (184 lb ft). Repeat for the opposite side.
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15. Install plugs (51) and the O-ring seals into pump housing (1).
16. Use Tooling (F) and a suitable press to install bearing (51) onto shaft assembly (49). Install
retaining ring (50) onto shaft assembly (49).
17. Use a suitable press to install shaft assembly (49) into rear mounting flange assembly (27).
Use Tooling (E) to install retaining ring (47). Install plate (46) and O-ring seal (48) into rear
mounting flange assembly (27).
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18. Install plate (45) and the O-ring seal.
19. Position rear mounting flange (43) onto rear mounting flange (27). Install bolts (44).
20. Install bearing liners (42).
21. Install swashplate assembly (40). Use Tooling (H) to hold slide (41) in the upright position.
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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.
22. Install spring (39) and washers (38) into barrel assembly (33).
23. Use Tooling (D) and a suitable press to compress spring (39). Install retaining ring (37).
9/18
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24. Install spring assembly (36) and shim (35) into barrel assembly (33).
25. Install ball joint (34) onto barrel assembly (33).
26. Install retainer plate (32) and piston assemblies (31) onto barrel assembly (33).
10/18
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27. Attach rear mounting flange (27) to Tooling (A). Use a nylon string to install rotating
assembly (29). Install O-ring seal (30).
28. Use Tooling (H) to hold port plate (28) in place. Install port plate (28) into pump housing
(1).
11/18
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Caterpillar Cat D6K2 LGP TRACK-TYPE TRACTOR (Prefix JTR) Service Repair Manual Instant Download.pdf

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Caterpillar Cat D6K2 LGP TRACK-TYPE TRACTOR (Prefix JTR) Service Repair Manual Instant Download.pdf