TA22 Transmission Caterpillar


Transmission - Disassemble

Usage:

TA22-M4WD T4W


Disassembly Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
180-3032  Jack Stand Gp 
439-3939  Link Bracket As 
154-6182  Forcing Bolt 
154-6181  Forcing Bolt 
203-5582  Lifting Plate 
FT-2769  Table 
1P-2322  Combination Puller 
8B-7560 Step Plate 
5P-4758  Retaining Ring Pliers As 
9U-7479  Spring Compressor 
6V-7728  Forcing Bolt 

Start By:

  1. Remove the input speed sensor. Refer to Disassembly and Assembly, "Speed Sensor - Remove".

Note: Put identification marks on all hoses, on all hose assemblies, on all wires, and on all tube assemblies for installation purposes. Plug all hose assemblies and all tube assemblies to prevent fluid loss and keeps contaminants from entering the system.

Note: Cleanliness is an important factor. Thoroughly clean the exterior of the components before you begin the disassembly procedure 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.


NOTICE

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.

Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products.

Dispose of all fluids according to local regulations and mandates.




    Illustration 1g01269749

  1. Attach Tooling (B), and a suitable lifting device to the transmission. The weight of the transmission is approximately 1588 kg (3500 lb). Position the transmission onto Tooling (A) and suitable blocking.


    Illustration 2g01381847

    Note: Note the orientation of spacer (4).

  2. Remove tube assembly (4A). Remove bolt (1), retainer (2), the O-ring seal, yoke (3), lip seal (3A), and spacer (4). Remove bolts (5).


    Illustration 3g01269753

  3. Use Tooling (C) to remove cage assembly (6) and the shims.


    Illustration 4g01269755

  4. Remove bearing cup (7).


    Illustration 5g01269757

  5. Attach Tooling (B) and a suitable lifting device to cover assembly (9). The weight of cover assembly (9) is approximately 82 kg (180 lb). Remove bolts (8) and cover assembly (9).


    Illustration 6g01269759

  6. Remove tube assembly (10).


    Illustration 7g01381923

  7. Remove bolt (11) and retainer (12). Use two people to remove gear (13). The weight of gear (13) is approximately 25 kg (55 lb). Remove spacer (13A).


    Illustration 8g01382669

    Note: Note the orientation of spacer (14).

  8. Remove bolt (16A), retainer (16), O-ring seal (15A), yoke (15), lip seal (14A), and spacer (14).


    Illustration 9g01270506

  9. Attach Tooling (B) and a suitable lifting device to shaft assembly (17). The weight of shaft assembly (17) is approximately 82 kg (180 lb). Remove shaft assembly (17).


    Illustration 10g01270543

  10. Use a suitable press to remove bearing cone (19) and gear (20) from shaft (18).


    Illustration 11g01270563

  11. Remove retaining ring (21) from shaft (18).


    Illustration 12g01270612

  12. Remove bolts (22). Use Tooling (C) to remove cage assembly (23) and the shims.


    Illustration 13g01270613

  13. Remove bearing cup (24).


    Illustration 14g01270714

  14. Use Tooling (D) to remove cage assembly (25) and the shims. Repeat for remaining cage assemblies (27) and (28).


    Illustration 15g01270762

  15. Remove bearing cups (29) from cage assemblies (25), (27), and (28).


    Illustration 16g01271784

  16. Attach Tooling (B) and a suitable lifting device to housing assembly (30). The weight of housing assembly (30) is approximately 431 kg (950 lb). Remove bolts (31) and housing assembly (30).


    Illustration 17g01270775

  17. Reposition the housing assembly. Use two people to remove clutch (33). The weight of clutch (33) is approximately 25 kg (55 lb). Remove bolts (32) and clutch (33).

    Note: Do not remove Bolts (X).



    Illustration 18g01387415

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

    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.


  18. Remove bolts (34). Remove reaction plate (35) and ring gear (36).


    Illustration 19g01271857

  19. Remove discs and plates (37). Remove dowels (39), springs (38), and piston (40) from housing (41).


    Illustration 20g01271911

  20. Remove ring seals (42) and (43).


    Illustration 21g01272065

  21. Attach Tooling (E) and a suitable lifting device to shaft assemblies (44). The weight of shaft assemblies (44) is approximately 590 kg (1300 lb). Remove shaft assemblies (44).


    Illustration 22g01273485

  22. Remove the ring seals from the shaft assemblies.


    Illustration 23g01272218

  23. Position shaft assemblies (44) on Tooling (F). Remove Tooling (E).


    Illustration 24g01272228

  24. Position shaft assembly (46). Install Tooling (G) onto bearing cone (45).


    Illustration 25g01272299

  25. Remove bearing cone (45), spacer (47), spacer (48), gear (49), and spacer (50).


    Illustration 26g01272313

  26. Reposition the shaft assembly. Remove bolts (51) and seal carrier (52).


    Illustration 27g01272385

  27. Use Tooling (G) to remove bearing cone (53).


    Illustration 28g01274797

  28. Remove bearing cone (53) and spacer (54). Remove thrust washer (56) and gear (55).


    Illustration 29g01383808

  29. Remove bearings (57) and (58). Remove thrust washer (59). Use Tooling (H) to remove retaining ring (60). Remove clutch plate (61). Remove clutch discs and plates (62).


    Illustration 30g01272577

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

    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.


  30. Use a suitable press and Tooling (J) to compress spring (64). Remove retaining ring (63).


    Illustration 31g01272604

  31. Remove spacer (65), seal assembly (66), and spring (67).


    Illustration 32g01272607

  32. Remove piston (69). Remove ring seals (68), (70), and (71) from piston (69).


    Illustration 33g01272726

  33. Slide shaft assembly (72) away from the remaining shaft assemblies.


    Illustration 34g01272613

  34. Use Tooling (G) to remove bearing cone (73).


    Illustration 35g01272849

  35. Remove bearing cone (73), spacer (74), spacer (75), thrust washer (76), and gear (77).

  36. Repeat Steps 29 through 32 for the disassembly of clutch pack (78).


    Illustration 36g01272861

  37. Reposition shaft assembly (72). Remove bolts (79) and seal carrier (80). Remove spring pin (81).


    Illustration 37g01272864

  38. Use Tooling (G) to remove bearing cone (82).


    Illustration 38g01272870

  39. Remove bearing cone (82), spacer (83), spacer (84), and gear (85).


    Illustration 39g01272916

  40. Remove gear (86), spacer (87), thrust washer (88), and gear (89).

  41. Repeat Steps 29 through 32 for the disassembly of clutch pack (90).


    Illustration 40g01272944

  42. Position shaft assembly (91) away from the other shaft assemblies. Use Tooling (G) to remove bearing cone (92).


    Illustration 41g01273177

  43. Remove bearing cone (92), spacer (93), and planetary carrier (94).


    Illustration 42g01273209

  44. Drive pin (95) into shaft (96). Remove shaft (96), pin (95), gear (100), thrust discs (98), and bearings (99). Repeat for the remaining planetary gears.


    Illustration 43g01382464

  45. Sun gear (103) and tube (102) are assembled with a captive retaining ring (103A). Retaining ring (103A) must be compressed with suitable rods to separate sun gear (103) and tube (102).

  46. Remove thrust washer (101), tube (102), sun gear (103), and retaining ring (103A). Remove thrust washer (104) and gear (105).

  47. Repeat Steps 29 through 32 for the disassembly of clutch pack (106).


    Illustration 44g01273250

  48. Reposition shaft assembly (91) onto suitable blocking. Remove bolts (107), seal carrier (108), bolts (109), and rotor (110).


    Illustration 45g01273255

  49. Use Tooling (G) to remove bearing cone (111).


    Illustration 46g01273268

  50. Remove bearing cone (111), spacer (112), and planetary carrier (113).

  51. Repeat Step 44 for the disassembly of planetary carrier (113).


    Illustration 47g01382587

  52. Remove thrust washer (114), tube (115), sun gear (116), thrust washer (117), and gear (118).

  53. Repeat Steps 29 through 32 for the disassembly of clutch pack (119).

    Note: Note the location of spacer (120) when clutch pack (119) is disassembled.



    Illustration 48g01273321

  54. Position shaft assembly (122). Use Tooling (G) to remove bearing cone (121) from shaft assembly (122).


    Illustration 49g01273334

  55. Remove bearing cone (121), spacer (123), spacer (124), gear (125), and gear (126).


    Illustration 50g01273402

  56. Remove spacer (127), thrust washer (128), and gear (129).

  57. Repeat Steps 29 through 32 for the disassembly of clutch pack (130).


    Illustration 51g01273404

  58. Reposition shaft assembly (122). Use Tooling (G) to remove bearing cone (131).


    Illustration 52g01273410

  59. Remove bearing cone (131), spacer (132), thrust washer (133), and gear (134).

  60. Repeat Steps 29 through 32 for the disassembly of clutch pack (135).


    Illustration 53g01272066

  61. Remove bearing cups (138). Remove bolts (136) and clutch pack (137).

    Note: Do not remove Bolts (Y).

  62. Repeat Steps 18 through 20 for the disassembly of clutch pack (137).


    Illustration 54g01273474

  63. Remove covers (139) and bolts (140).

  64. Use Tooling (K) to remove carrier (141).


    Illustration 55g01273481

  65. Remove O-ring seals (142) and lip seal (143) from carrier (141).

Caterpillar Information System:

UPS 120, UPS 150, UPS 250, UPS 300, UPS 301, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supplies Static Drain - Install
TA22 Transmission Pressure Sensor (Charge Pump) - Remove and Install
C175-16 and C175-20 Generator Set Engines Exhaust Fitting
TA22 Transmission Modulating Valve (Transmission Clutch) - Remove and Install
TA19-M2WD and TA19-M4WD Agricultural Transmissions Relief Valve (Transmission Main) - Disassemble
TA19-M2WD and TA19-M4WD Agricultural Transmissions Relief Valve (Transmission Main) - Assemble
C4.4 Industrial Engine Fuel Injection Timing - Check
C4.4 and C6.6 Industrial Engines and Engines for Caterpillar Built Machines E360 Low Engine Oil Pressure
UPS 120, UPS 150, UPS 250, UPS 300, UPS 301, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supplies Zig Zag Overload Relay (SMS Bypass Cabinet)
UPS 120, UPS 150, UPS 250, UPS 300, UPS 301, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supplies Zig Zag Circuit Breaker (SMS Bypass Cabinet)
TA22 Transmission Temperature Sensor (Transmission Oil) - Remove and Install
UPS 120, UPS 150, UPS 250, UPS 300, UPS 301, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supplies Zig Zag Contactor (SMS Bypass Cabinet)
TA22 Transmission Transmission - Assemble
TA22 Transmission Pump Drive - Remove
TA22 Transmission Pump Drive - Install
TH48-E70 Petroleum Transmission Torque Converter and Transmission Oil Level - Check
TH48-E70 Petroleum Transmission Torque Converter and Transmission Oil - Change
C175-16 Locomotive Engine Exhaust Fitting
3500C Marine Engines Air Cleaner
3044C Industrial Engine Water Pump - Inspect
3500 Generator Set Engines Engine Coolant Temperature Sensor - Resistive Temperature Device
3044C Industrial Engine Engine Mounts - Inspect
3044C Industrial Engine Engine Air Cleaner Element (Dual Element) - Clean/Replace
3408C and 3412C Marine Engines Crankshaft
Back to top
The names Caterpillar, John Deere, JD, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
CH-Part.com is in no way associated with any of the manufacturers we have listed. All manufacturer's names and descriptions are for reference only.