PL61 Pipelayer Power Train Caterpillar

Assembly Procedure

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Illustration 1	g03043902

1. Lower the temperature of bearing cup (42) and install bearing cup (42).
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   Illustration 2	g03043903

2. Raise the temperature of bearing cones (41) and install bearing cones (41). Lubricate bearing cones (41) with SAE 30 oil. Positively seat the bearing cones against the locating shoulders of the gear assembly after the bearing cones have cooled.
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   Illustration 3	g03043904

3. Install gear assembly (39).

4. Lower the temperature of bearing cup (40) and install bearing cup (40).

5. Install retainer (37) and bolts (38).
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   Illustration 4	g03043896

6. Attach Tooling (A) and a suitable lifting device to final drive case (36). The weight of final drive case (36) is approximately 75 kg (165 lb). Reposition final drive case (36).
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   Illustration 5	g03043844

7. Apply Tooling (M) to the mating surface of thrust button (35) and the final drive case. Install thrust button (35).
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   Illustration 6	g03044959

8. Raise the temperature of inner bearing (34) and install inner bearing (34) onto bull gear (33).

9. Install bull gear (33).
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   Illustration 7	g03043839

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   Illustration 8	g03044996

10. Lower the temperature of bearing outer race (31) and install bearing outer race (31) into spindle (30).

11. Attach Tooling (H) and a suitable lifting device to spindle (30). The weight of spindle (30) is approximately 127 kg (280 lb). Install O-ring seal (32), spindle (30), and bolts (29). Lubricate O-ring seal (32) with the lubricant that is being sealed.

12. Raise the temperature of bearing cone (28) and install bearing cone (28). Lubricate bearing cone (28) with SAE 30 oil.

13. Install Duo-Cone seal (27). Refer to Special Instruction, SEHS8364, "Assembly and Installation of Conventional Duo-Cone Seals" for installation instructions.
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    Illustration 9	g03043818

14. Lower the temperature of bearing cups (26) and install bearing cups (26) into sprocket hub (24).

15. Install Duo-Cone seal (25). Refer to Special Instruction, SEHS8364, "Assembly and Installation of Conventional Duo-Cone Seals" for installation instructions.
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    Illustration 10	g03043624

16. Attach Tooling (A) and a suitable lifting device to sprocket hub (24). The combined weight of sprocket hub (24) and the sprocket segments is approximately 186 kg (410 lb). Install sprocket hub (24) and the sprocket segments as a unit.

17. Raise the temperature of bearing cone (23) and install bearing cone (23). Lubricate bearing cone (23) with SAE 30 oil.
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    Illustration 11	g03042177

18. Attach Tooling (D) and a suitable lifting device to hub (19). The weight of hub (19) is approximately 18 kg (40 lb). Install hub (19) into ring gear (18). Install retaining ring (22).
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    Illustration 12	g03045047

19. Attach Tooling (D) and a suitable lifting device to ring gear (18) and hub (19). The combined weight of ring gear (18) and hub (19) is approximately 40 kg (88 lb). Install ring gear (18) and hub (19) as a unit. Install retainer plate (21) and three bolts (20) equally spaced.
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    Illustration 13	g03045048

20. Use Tooling (L) and a suitable press to seat the bearing cones. Use the suitable press to apply an axial load of 120 ± 10 kN (26977 ± 2248 lb). Rotate sprocket hub (24). Tighten three bolts (20) to a torque of 95 ± 10 N·m (70 ± 7 lb ft).

21. Remove Tooling (L) and the suitable press.
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    Illustration 14	g03045049

22. Install the remaining bolts (20). Tighten bolts (20) to a torque of 120 ± 20 N·m (89 ± 15 lb ft).
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    Illustration 15	g03041776

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    Illustration 16	g03045118

23. Lower the temperature of bearing cup (14) and bearing cup (16). Install bearing cup (14) and bearing cup (16) into planetary gear (15). Lubricate bearing cone (13) and bearing cone (17) with SAE 30 oil. Install bearing cone (13), planetary gear (15), and bearing cone (17) into the planetary carrier. Use a suitable press to install shaft (12). Repeat for the remaining planetary gears.
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    Illustration 17	g03041719

24. Install O-ring seal (11). Lubricate O-ring seal (11) with the lubricant that is being sealed.

25. Install O-ring seal (10), retainer (9), washer (8), and bolt (7). Repeat for the remaining planetary gears.
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    Illustration 18	g03041498

26. Attach Tooling (D) and a suitable lifting device to planetary assembly (6). The weight of planetary assembly (6) is approximately 109 kg (240 lb). Install planetary assembly (6) and bolts (5).
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    Illustration 19	g03040636

27. Use Tooling (C) to install sun gear shaft assembly (4).
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    Illustration 20	g03039916

28. Install the O-ring seal, cover (1), and bolts (2).
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    Illustration 21	g03039906

29. Attach Tooling (A), Tooling (B), and a suitable lifting device to final drive (1). The weight of final drive (1) is approximately 590 kg (1300 lb). Position final drive (1) onto suitable cribbing.

30. Fill the final drive oil. Refer to Operation and Maintenance Manual, "Final Drive Oil - Change" for the correct filling procedure.

End By:

1. Install the track brake.

2. Install the final drive and brake.