TA19-M2WD and TA19-M4WD Agricultural Transmissions Caterpillar


Transmission - Disassemble

Usage:

TA19-M2WD T2Z


Disassembly Procedure

Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     138-7575     Link Brackets     4    
B     1U-9202     Lever Puller Hoist     1    
C     1P-2420     Transmission Repair Stand     1    
D     154-6181     Forcing Screws     2    
E     203-5581     Plate     1    
F     1P-2322     Combination Puller     1    
8B-7560 Step Plate     1    
G     FT-2769     Table     1    
H     5P-4758     Retaining Ring Pliers As     1    
J     207-8153     Shaft Retainer     1    

Start By:

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



    Illustration 1g01269011

  1. Attach Tooling (A) and a suitable lifting device to bell housing (2). The weight of bell housing (2) is approximately 35 kg (75 lb). Remove bolts (1). Remove bell housing (2) and the O-ring seals.



    Illustration 2g01269023

  1. Disconnect harness assemblies (3). Remove bolts (5) and electronic control module (4) .



    Illustration 3g01269041

  1. Use Tooling (A), Tooling (B), and a suitable lifting device in order to reposition transmission (6) onto Tooling (C). The weight of transmission (6) is approximately 1315 kg (2900 lb).



    Illustration 4g01269046

  1. Remove bolt (7) and retainer (10). Remove yoke (9) and O-ring seal (8) .



    Illustration 5g01269055

  1. Reposition harness assembly (13). Attach Tooling (A) and a suitable lifting device to cover assembly (12). The weight of cover assembly (12) is approximately 60 kg (130 lb). Remove bolts (11) and cover assembly (12) .



    Illustration 6g01269057

  1. Remove bolts (14) and Tooling (A) .



    Illustration 7g01269063



    Illustration 8g01269068

  1. Use Tooling (D) in order to remove bearing cage (15). Remove shims (16) .



    Illustration 9g01269118

  1. Remove O-ring seals (18) and lip seal (17). Remove bearing cup (19) .



    Illustration 10g01269176

  1. Remove bolt (20) and retainer (21). Use two people in order to remove gear (22). The weight of gear (22) is approximately 23 kg (50 lb).



    Illustration 11g01269183

  1. Remove ring (23). Use two people in order to remove gear (24). The weight of gear (24) is approximately 32 kg (70 lb).



    Illustration 12g01269221

  1. Remove bearing cones (25) from gear (24) .



    Illustration 13g01269222

  1. Remove bolt (28) and tube assembly (29) .

  1. Remove bolt (26) and bearing cage (27) .



    Illustration 14g01269226

  1. Remove shims (31). Remove bearing cup (30) from bearing cage (27) .

  1. Repeat Steps 13 and 14 for the remaining bearing cages.



    Illustration 15g01269240



    Illustration 16g01269241

  1. Remove tube assembly (33). Attach Tooling (A) and a suitable lifting device to case assembly (32). The weight of case assembly (32) is approximately 365 kg (800 lb). Remove bolts (34) and case assembly (32). Remove O-ring seal (35) .



    Illustration 17g01269287

  1. Remove bearing cup (36) .



    Illustration 18g01329460

    Note: Do not remove bolts (X) .

  1. Remove bolts (37). Use two people in order to remove clutch assembly (38). The weight of clutch assembly (38) is approximately 25 kg (55 lb).



    Illustration 19g01269430

  1. Remove O-ring seals (39) from clutch assembly (38) .



    Illustration 20g01269435

  1. Remove bolts (40). Remove reaction plate (41) and ring gear (42) .



    Illustration 21g01269438



    Illustration 22g01269440

    ------ 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.

    ----------------------

  1. Remove disc (43) and plates (44). Remove dowels (45) and springs (46). Remove dowels (50) from housing (51), if necessary.

  1. Remove piston (48) from housing (51). Remove seals (47) and (49) from piston (48) .



    Illustration 23g01269516

  1. Attach Tooling (E) and a suitable lifting device to shaft assemblies (52). The weight of shaft assemblies (52) is approximately 375 kg (820 lb). Remove shaft assemblies (52) .



    Illustration 24g01269519

  1. Remove ring seals (53) .



    Illustration 25g01269526

  1. Place the shaft assemblies onto Tooling (G). Remove Tooling (E) .



    Illustration 26g01269638

    Reverse Shaft

  1. Use Tooling (F) in order to remove bearing cone (54) from shaft assembly (55) .



    Illustration 27g01269685

  1. Remove bearing cone (54), spacer (56), spacer (57), gear (58), and spacer (59) from shaft assembly (55) .



    Illustration 28g01269743

  1. Rotate shaft assembly (55) by 180 degrees. Remove bolts (60) and remove seal carrier (61) .



    Illustration 29g01269746

  1. Use Tooling (F) in order to remove bearing cone (62) .



    Illustration 30g01269751

  1. Remove bearing cone (62) and spacer (63). Remove thrust washer (64) and gear (65) .



    Illustration 31g01269758

  1. Remove bearings (66) and thrust washer (67). Use Tooling (H) in order to remove retaining ring (68). Remove clutch plate (69). Remove the friction discs and plates (70) from shaft assembly (55) .



    Illustration 32g01269765

    ------ 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.

    ----------------------

  1. Use a suitable press and Tooling (J) in order to compress spring (72). Remove retaining ring (71) .



    Illustration 33g01269767

  1. Remove spacer (73), seal assembly (74), and spring (75) from shaft assembly (55) .



    Illustration 34g01270206

  1. Remove piston (77) from shaft assembly (55). Remove seals (76) from piston (77). Remove seal (78) from piston (77) .



    Illustration 35g01270208

    Intermediate Shaft

  1. Use Tooling (F) in order to remove bearing cone (79) from shaft assembly (80) .



    Illustration 36g01270211

  1. Remove bearing cone (79), spacer (81), spacer (82), thrust washer (83), and gear (84) from shaft assembly (80). Remove bearings (85) and thrust washer (83) .

    Note: The procedure for the disassembly of the clutch packs are identical.




    Illustration 37g01269959

  1. Rotate shaft assembly (80) by 180 degrees. Remove bolts (86) and seal carrier (87). Remove bearing cone (88) from shaft assembly (80) .



    Illustration 38g01269966

  1. Use Tooling (F) in order to remove bearing cone (89) from shaft assembly (80) .



    Illustration 39g01269968

  1. Remove bearing cone (89), spacer (90), spacer (91), and gear (92) from shaft assembly (80) .



    Illustration 40g01269969

  1. Remove gear (93), spacer (94), thrust washer (95), and gear (96). Remove bearing (97) and thrust washer (95) from shaft assembly (80) .

    Note: The procedure for the disassembly of the clutch packs are identical.




    Illustration 41g01269974

    Output Shaft

  1. Use Tooling (F) in order to remove bearing cone (98) from shaft assembly (99) .



    Illustration 42g01269976

  1. Remove bearing cone (98), spacer (100), and planetary carrier (101) from shaft assembly (99) .



    Illustration 43g01269978

    Note: Drive spring pin (105) into shaft (106) until shaft (106) can be removed. Do not drive spring pin (105) too far.

  1. Drive spring pin (105) into shaft (106). Remove shaft (106), thrust discs (102), gear (104), and bearings (103) from carrier (101) .



    Illustration 44g01269983

  1. Remove thrust washer (107), sun gear (108), spacer (109), thrust washer (110), and gear (111). Remove bearings (112) and thrust washer (110) from shaft assembly (99) .

    Note: The procedure for the disassembly of the clutch packs are identical.




    Illustration 45g01269986

  1. Rotate shaft assembly (99). Remove bolts (113), seal carrier (114), bolts (115), and rotor (116) from shaft assembly (99) .



    Illustration 46g01270066

  1. Use Tooling (F) to remove bearing cone (117) from shaft (99) .



    Illustration 47g01270067

  1. Remove bearing cone (117), spacer (118), and planetary carrier (119) from shaft assembly (99) .

    Note: The procedure for the disassembly of the planetary carriers are identical.




    Illustration 48g01270078

  1. Remove thrust washer (120), sun gear (121), tube (122), thrust washers (123), and gear (124). Remove bearings (125) and spacer (126) from shaft assembly (99) .

    Note: The procedure for the disassembly of the clutch packs are identical.




    Illustration 49g01270090

    Input Shaft

  1. Use Tooling (F) in order to remove bearing cone (127) from shaft assembly (128) .



    Illustration 50g01270092

  1. Remove bearing cone (127), spacer (129), spacer (130), gear (131), and gear (132) from shaft assembly (128) .



    Illustration 51g01270098

  1. Remove spacer (133), thrust washer (134), and gear (135). Remove bearings (136) and thrust washer (134) from shaft assembly (128) .

    Note: The procedure for the disassembly of the clutch packs are identical.




    Illustration 52g01270099

    Note: Remove the seal rings before removal of bearing cone (137) .

  1. Rotate shaft assembly (128) by 180 degrees. Use Tooling (F) in order to remove bearing cone (137) from shaft assembly (128) .



    Illustration 53g01270555

  1. Remove bearing cone (137), spacer (138), thrust washer (139), and gear (140). Remove bearings (141) and thrust washer (139) from shaft assembly (128) .

    Note: The procedure for the disassembly of the clutch packs are identical.




    Illustration 54g01329472

    Note: Do not remove bolts (Y) .

  1. Remove bolts (142). Use two people in order to remove clutch assembly (143). The weight of clutch assembly (143) is approximately 25 kg (55 lb).

  1. Refer to Steps 19 through 22 for disassembly of remaining clutch assemblies.



    Illustration 55g01270596

  1. Remove bearing cups (144) .



    Illustration 56g01270626

  1. Remove bolts (145) and seal ring housing (146) .



    Illustration 57g01270632

  1. Remove O-ring seals (147) from seal ring housing (146) .



    Illustration 58g01270685

  1. Remove lip seal (148) from seal ring housing (146) .

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