TA22 Transmission Caterpillar

Transmission - Disassemble

Usage:

Disassembly Procedure

Show/hide table

Table 1
Required Tools
Tool	Part Number	Part Description	Qty
A	180-3032	Jack Stand Gp	1
B	439-3939	Link Bracket As	4
C	154-6182	Forcing Bolt	2
D	154-6181	Forcing Bolt	2
E	203-5582	Lifting Plate	1
F	FT-2769	Table	1
G	1P-2322	Combination Puller	1
G	8B-7560	Step Plate	1
H	5P-4758	Retaining Ring Pliers As	1
J	9U-7479	Spring Compressor	1
K	6V-7728	Forcing Bolt	2

Start By:

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.

Show/hide table

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.

Show/hide table




Illustration 1	g01269749

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.
Show/hide table

Illustration 2 g01381847

Note: Note the orientation of spacer (4).
Remove tube assembly (4A). Remove bolt (1), retainer (2), the O-ring seal, yoke (3), lip seal (3A), and spacer (4). Remove bolts (5).
Show/hide table

Illustration 3 g01269753
Use Tooling (C) to remove cage assembly (6) and the shims.
Show/hide table

Illustration 4 g01269755
Remove bearing cup (7).
Show/hide table

Illustration 5 g01269757
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).
Show/hide table

Illustration 6 g01269759
Remove tube assembly (10).
Show/hide table

Illustration 7 g01381923
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).
Show/hide table

Illustration 8 g01382669

Note: Note the orientation of spacer (14).
Remove bolt (16A), retainer (16), O-ring seal (15A), yoke (15), lip seal (14A), and spacer (14).
Show/hide table

Illustration 9 g01270506
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).
Show/hide table

Illustration 10 g01270543
Use a suitable press to remove bearing cone (19) and gear (20) from shaft (18).
Show/hide table

Illustration 11 g01270563
Remove retaining ring (21) from shaft (18).
Show/hide table

Illustration 12 g01270612
Remove bolts (22). Use Tooling (C) to remove cage assembly (23) and the shims.
Show/hide table

Illustration 13 g01270613
Remove bearing cup (24).
Show/hide table

Illustration 14 g01270714
Use Tooling (D) to remove cage assembly (25) and the shims. Repeat for remaining cage assemblies (27) and (28).
Show/hide table

Illustration 15 g01270762
Remove bearing cups (29) from cage assemblies (25), (27), and (28).
Show/hide table

Illustration 16 g01271784
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).
Show/hide table

Illustration 17 g01270775

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).

Show/hide table




Illustration 18	g01387415

Show/hide table

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.

Remove bolts (34). Remove reaction plate (35) and ring gear (36).
Show/hide table

Illustration 19 g01271857
Remove discs and plates (37). Remove dowels (39), springs (38), and piston (40) from housing (41).
Show/hide table

Illustration 20 g01271911
Remove ring seals (42) and (43).
Show/hide table

Illustration 21 g01272065
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).
Show/hide table

Illustration 22 g01273485
Remove the ring seals from the shaft assemblies.
Show/hide table

Illustration 23 g01272218
Position shaft assemblies (44) on Tooling (F). Remove Tooling (E).
Show/hide table

Illustration 24 g01272228
Position shaft assembly (46). Install Tooling (G) onto bearing cone (45).
Show/hide table

Illustration 25 g01272299
Remove bearing cone (45), spacer (47), spacer (48), gear (49), and spacer (50).
Show/hide table

Illustration 26 g01272313
Reposition the shaft assembly. Remove bolts (51) and seal carrier (52).
Show/hide table

Illustration 27 g01272385
Use Tooling (G) to remove bearing cone (53).
Show/hide table

Illustration 28 g01274797
Remove bearing cone (53) and spacer (54). Remove thrust washer (56) and gear (55).
Show/hide table

Illustration 29 g01383808

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).

Show/hide table




Illustration 30	g01272577

Show/hide table

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.

Use a suitable press and Tooling (J) to compress spring (64). Remove retaining ring (63).
Show/hide table

Illustration 31 g01272604
Remove spacer (65), seal assembly (66), and spring (67).
Show/hide table

Illustration 32 g01272607
Remove piston (69). Remove ring seals (68), (70), and (71) from piston (69).
Show/hide table

Illustration 33 g01272726
Slide shaft assembly (72) away from the remaining shaft assemblies.
Show/hide table

Illustration 34 g01272613
Use Tooling (G) to remove bearing cone (73).
Show/hide table

Illustration 35 g01272849
Remove bearing cone (73), spacer (74), spacer (75), thrust washer (76), and gear (77).
Repeat Steps 29 through 32 for the disassembly of clutch pack (78).
Show/hide table

Illustration 36 g01272861
Reposition shaft assembly (72). Remove bolts (79) and seal carrier (80). Remove spring pin (81).
Show/hide table

Illustration 37 g01272864
Use Tooling (G) to remove bearing cone (82).
Show/hide table

Illustration 38 g01272870
Remove bearing cone (82), spacer (83), spacer (84), and gear (85).
Show/hide table

Illustration 39 g01272916
Remove gear (86), spacer (87), thrust washer (88), and gear (89).
Repeat Steps 29 through 32 for the disassembly of clutch pack (90).
Show/hide table

Illustration 40 g01272944
Position shaft assembly (91) away from the other shaft assemblies. Use Tooling (G) to remove bearing cone (92).
Show/hide table

Illustration 41 g01273177
Remove bearing cone (92), spacer (93), and planetary carrier (94).
Show/hide table

Illustration 42 g01273209
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.
Show/hide table

Illustration 43 g01382464
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).
Remove thrust washer (101), tube (102), sun gear (103), and retaining ring (103A). Remove thrust washer (104) and gear (105).
Repeat Steps 29 through 32 for the disassembly of clutch pack (106).
Show/hide table

Illustration 44 g01273250
Reposition shaft assembly (91) onto suitable blocking. Remove bolts (107), seal carrier (108), bolts (109), and rotor (110).
Show/hide table

Illustration 45 g01273255
Use Tooling (G) to remove bearing cone (111).
Show/hide table

Illustration 46 g01273268
Remove bearing cone (111), spacer (112), and planetary carrier (113).
Repeat Step 44 for the disassembly of planetary carrier (113).
Show/hide table

Illustration 47 g01382587
Remove thrust washer (114), tube (115), sun gear (116), thrust washer (117), and gear (118).
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.
Show/hide table

Illustration 48 g01273321
Position shaft assembly (122). Use Tooling (G) to remove bearing cone (121) from shaft assembly (122).
Show/hide table

Illustration 49 g01273334
Remove bearing cone (121), spacer (123), spacer (124), gear (125), and gear (126).
Show/hide table

Illustration 50 g01273402
Remove spacer (127), thrust washer (128), and gear (129).
Repeat Steps 29 through 32 for the disassembly of clutch pack (130).
Show/hide table

Illustration 51 g01273404
Reposition shaft assembly (122). Use Tooling (G) to remove bearing cone (131).
Show/hide table

Illustration 52 g01273410
Remove bearing cone (131), spacer (132), thrust washer (133), and gear (134).
Repeat Steps 29 through 32 for the disassembly of clutch pack (135).
Show/hide table

Illustration 53 g01272066
Remove bearing cups (138). Remove bolts (136) and clutch pack (137).
Note: Do not remove Bolts (Y).
Repeat Steps 18 through 20 for the disassembly of clutch pack (137).
Show/hide table

Illustration 54 g01273474
Remove covers (139) and bolts (140).
Use Tooling (K) to remove carrier (141).
Show/hide table

Illustration 55 g01273481
Remove O-ring seals (142) and lip seal (143) from carrier (141).