D6N Track-Type Tractor Power Train Steering Planetary and Brake - Disassemble Caterpillar


Steering Planetary and Brake - Disassemble
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1.1. Disassembly Procedure

Disassembly Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
138-7575  Link Bracket 
1P-0520  Driver Group 
3/8 × 16 Forcing Screw 

Start By:

  1. Remove the right hand final drive, the planetary group, and the brake. Refer to Disassembly and Assembly, "Final Drive, Steering Planetary, and Brake (Right Side) - Remove".


    Illustration 1g01234433

  1. Position the final drive, the planetary group, and the brake.

  2. Remove bolts (1A) (not shown) that hold the planetary group and brake (1) to final drive (2).

  3. Attach Tooling (A) and a suitable lifting device (not shown) to the planetary group and brake (1).

  4. Install Tooling (C) in the final drive hub.

  5. Tighten Tooling (C) evenly in order to separate the planetary group and brake (1) from final drive (2). The weight of the planetary group and brake (1) is approximately 136 kg (300 lb).


    Illustration 2g00622109

    ------ WARNING! ------

    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.


  6. Remove bolts (3).

  7. Remove ring gear (4) from housing (5).


    Illustration 3g01234571

  8. Remove friction discs (6) and the brake plates from housing (5).


    Illustration 4g00622111


    Illustration 5g00622113

  9. Remove bolts (7) and plate (8).

    Note: Do not allow carrier (10) to fall when the carrier is pressed from housing (5).

    Note: If a shim pack is present between the plate (9) and planetary carrier (10). Reuse the same shim pack during assembly only if reusing the same planetary carrier (10). If a new planetary carrier (10) is being used the shim pack should be discarded.

  10. Use a suitable press and Tooling (B) to remove carrier (10) from housing (5).

  11. Remove bearing cone (9) from housing (5).


    Illustration 6g00622127

  12. Remove ring (14) from planetary carrier (11).

  13. Remove bolts (13).

  14. Remove slinger (12) from planetary carrier (11).


    NOTICE

    The component is destroyed if the component is removed.


  15. If necessary, remove bearing cone (15) from planetary carrier (11).


    Illustration 7g00996861

  16. Use a hammer and a suitable punch to push pin (21) in shaft (20).


    Illustration 8g00996857

  17. Remove shaft (20), planetary gear (19), discs (17), and bearings (18) from planetary carrier (11).

  18. Remove pin (21) from shaft (20).

  19. Repeat Steps 16 through 18 for the remaining planetary gears.

  20. Remove sun gear (16) from planetary carrier (11).


    Illustration 9g00622132

    ------ WARNING! ------

    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.


  21. Remove bolts (22) and the washers.

  22. Remove retainer (23) from piston (24).


    Illustration 10g00996858

  23. If necessary, remove bearing cups (25) from retainer (23).

  24. Remove seal ring (26) from the retainer.


    Illustration 11g00622156

  25. Remove piston (24) and O-ring seal (27) from the housing.


    Illustration 12g00996860

  26. Remove seal ring (28) from piston (24).


    Illustration 13g00819345

  27. Remove spring (29) and ring (30) from housing (5).

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