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TH31 Well Servicing Transmissions Caterpillar


Transmission Planetary - Disassemble

Usage:

TH31-E61 LAD

Disassembly Procedure

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Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     138-7573     Link Bracket     2    
B     1P-1864     Retaining Ring Pliers As     1    
C     9U-7479     Compressing Tube     1    
D     1P-1861     Retaining Ring Pliers     1    
E     138-7575     Link Bracket     3    
F     2P-8312     Retaining Ring Pliers     1    
G     4C-3085     Two Jaw Puller     1    
H     1P-1863     Retaining Ring Pliers     1    
J     1P-0510     Driver Gp     1    
K     1U-9200     Lever Puller Hoist     1    
L     1P-2420     Lever Puller Hoist     1    
M     8B-7548     Lever Puller Hoist     1    

Start By:

  1. Separate the torque converter and the transmission. Disassembly and Assembly, " Transmission and Torque Converter - Seperate".

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NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.

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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, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.

Dispose of all fluids according to local regulations and mandates.

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

Personal injury or death can result from improper lifting or blocking.

When a hoist or jack is used to lift any part or component, stand clear of the area. Be sure the hoist or jack has the correct capacity to lift a component. Install blocks or stands before performance of any work under a heavy component.

Approximate weights of the components are shown. Clean all surfaces where parts are to be installed.

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    Illustration 1g01222684

  1. Attach Tooling (A) and a suitable lifting device to plate (1). Remove bolts (4) and (3). Remove plate (1) and No. 1 rotating clutch (2) as a unit. The weight of the No. 1 rotating clutch (2) and plate (1) is approximately 31 kg (70 lb).
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    Illustration 2g01222726

  1. Remove retaining ring (5) and separate plate (1) .
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    Illustration 3g01222727

  1. Use Tooling (B) to remove retaining ring (6). Remove bearing (7) .
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    Illustration 4g01222730

  1. Remove retaining ring (8) and plate (9) .
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    Illustration 5g01223206

  1. Remove hub (10), discs (11), and plates (12) .
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    Illustration 6g01223210

  1. Remove races (13) and disc (14) .
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    Illustration 7g01228210

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    ------ 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.

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  1. Use Tooling (C) and a suitable press to depress retainer (15). Use Tooling (B) to remove retaining ring (16) .
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    Illustration 8g01225989
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    Illustration 9g01228212

  1. Remove retainer (15) and bevel springs (17) .
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    Illustration 10g01228213

  1. Use Tooling (D) to remove retaining ring (18). Remove piston (19) .
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    Illustration 11g01228229

  1. Remove seals (20) from piston (19) .
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    Illustration 12g01226368

  1. Remove retaining ring (22). Then remove disc (21) .
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    Illustration 13g01226370

  1. Remove retaining ring (23) .
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    Illustration 14g01226371

  1. Use Tooling (E) and a suitable lifting device to remove the clutch pack for the No. 2 rotating clutch from the transmission case. The weight of the clutch pack is approximately 30 kg (70 lb).

  1. Remove Tooling (E) .
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    Illustration 15g01226373

  1. Remove bolts (24) and the washers in order to remove end plate (25) from housing (26) .
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    Illustration 16g01226375

  1. Remove friction discs (27) and steel plate (28) .
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    Illustration 17g01226378

  1. Remove dowel rods (29) through piston (31) and out of clutch housing (26) .

  1. Remove hub (30) .
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    Illustration 18g01226394

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    ------ 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.

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  1. Remove bolts (32) in order to remove the balance piston. Remove balance piston (33) from piston (31) .
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    Illustration 19g01226397

  1. Use Tooling (H) to remove retaining ring (34) from balance piston (33) .

  1. Remove seal (35) .
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    Illustration 20g01226400

  1. Remove springs (36) from piston (31) .
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    Illustration 21g01226405

  1. Remove clutch piston (31) from housing (26) .
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    Illustration 22g01226416

  1. Remove seal (37) from piston (31) .
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    Illustration 23g01226422

  1. Remove seal (38) .
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    Illustration 24g01226424

  1. Use Tooling (J) and Tooling (M) in order to remove the bearing (39) .

    Note: Bearing will be destroyed during removal.

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    Illustration 25g01226425

  1. Remove bolts (40) in order to remove manifold (41) .
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    Illustration 26g01226426

  1. Remove seals (42) from carrier (43) .
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    Illustration 27g01226439

  1. Invert manifold (41) in order to remove seal (44) .

  1. Remove bolts (45) and the carrier (43) .
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    Illustration 28g01226443

  1. Attach Tooling (E) and a suitable lifting device to transmission case (42). Remove transmission case (42) from planetary housing (46). The weight of transmission case (42) is approximately 90 kg (200 lb).
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    Illustration 29g01226446

  1. Remove O-ring seal (47) . Remove springs (48) .
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    Illustration 30g01226447

  1. Remove discs (50) and plates (49) for the No. 3 stationary clutch.
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    Illustration 31g01226449

  1. Use two people to remove gear (51) and carrier (52). The weight of gear (51) and carrier (52) is approximately 32 kg (70 lb).

    .

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    Illustration 32g01226450

  1. Remove compression ring (55). Separate carrier (52) from gear (51). Remove disc (53) from carrier (52) and remove gear (51). Remove bearing race (55) from the carrier (52) .
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    Illustration 33g01231631

  1. Drive the spring pin (56) into shaft (57) in order to remove shaft (57) .

  1. Remove shaft (57) from the carrier and the gear. Remove pin (56) from shaft (57) .

  1. Remove gear (60) and washer (58) from the carrier.

  1. Remove needle bearing (59) from gear (60) .

  1. Remove washer (61) from the carrier.

  1. Repeat Steps 36 through 40 for the remaining planetary gears.
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    Illustration 34g01226457

  1. Remove rods (63) and rods (62) .

  1. Attach Tooling (E) and a suitable lifting device to planetary housing (46). The weight of planetary housing (46) is approximately 40 kg (85 lb). Remove planetary housing (46) .
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    Illustration 35g01226459

  1. Remove Tooling (E) and the suitable lifting device from planetary housing (46). Remove piston (64) from planetary housing (46) .
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    Illustration 36g01226461

  1. Remove seals (65) and (66) from piston (64) .
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    Illustration 37g01226462

  1. Remove O-ring seal (67) from the housing.
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    Illustration 38g01226463

  1. Remove gear (68) .
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    Illustration 39g01226466

  1. Remove springs (69) .
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    Illustration 40g01226468

  1. Remove discs (71) and steel plates (70) from the No. 4 stationary clutch.
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    Illustration 41g01226469

  1. Remove dowel rods (72) .
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    Illustration 42g01226471
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    Illustration 43g01226503

  1. Remove gear (73) from thrust disc (74). Remove thrust disc (74) .
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    Illustration 44g01226504

  1. Remove thrust bearing race (75) .
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    Illustration 45g01228282

  1. Remove thrust bearing (76) .
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    Illustration 46g01228285

  1. Remove thrust bearing race (77) .
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    Illustration 47g01226611

  1. Remove piston (78) from housing (79) .
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    Illustration 48g01226614

  1. Remove seals (80) and (81) from piston (78) .
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    Illustration 49g01226615

  1. Remove bolts (83) .

  1. Use two people to remove planetary housing (79). The weight of the planetary housing (79) is approximately 28 kg (62 lb). Be very careful not to damage steel rods (82) during the disassembly procedure.
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    Illustration 50g01226616

  1. Remove springs (84) and steel rods (82) .
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    Illustration 51g01226625

  1. Remove dowel rods (85) .

  1. Remove plates (86) and discs (87) from No. 5 stationary clutch.

  1. Remove O-ring seal (88) from the housing.
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    Illustration 52g01228435

  1. Use Tooling (A) and a suitable lifting device to remove planetary carrier (90) and ring gear (91) from shaft (89) and planetary carrier assembly (92). The weight of planetary carrier (90) and ring gear (92) is approximately 34 kg (75 lb).
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    Illustration 53g01228436

  1. Remove disc (93) .
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    Illustration 54g01228437

  1. Compress retaining ring (95) .

  1. Use Tooling (A) and a suitable lifting device in order to support planetary carrier (90). The weight of planetary carrier (90) is approximately 30 kg (65 lb).

  1. Compress retaining ring (94) and remove ring gear (91) .

  1. Repeat Steps 36 through 41 in order to disassemble planetary carrier (33).
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    Illustration 55g01228438

  1. Use Tooling (F) to remove retaining ring (97) from shaft (89). Remove gear (96). Remove carrier (98) from shaft (89) and out of planetary carrier (92) .
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    Illustration 56g01228447

  1. Remove seal rings (99) from carrier (98) .
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    Illustration 57g01228460

  1. Remove shaft (89) from planetary carrier (92) .
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    Illustration 58g01231304

  1. Remove retaining rings (100) in order to remove gear (101) and shaft (89) .
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    Illustration 59g01228465

  1. Use Tooling (E), Tooling (K), and a suitable lifting device in order to reposition planetary housing (102). The weight of planetary housing (102) is approximately 73 kg (160 lb).
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    Illustration 60g01228469

  1. Remove bolt (106), washer (105), O-ring seal (104), and yoke (103) .
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    Illustration 61g01228471

  1. Remove bolts (107) in order to separate retainer (108) from planetary housing (102) .
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    Illustration 62g01228473

  1. Remove seal (109) from retainer (108) .
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    Illustration 63g01228475

  1. Remove rotor (110) .
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    Illustration 64g01228476

    Note: Do not press on the shaft in order to prevent damage to the gear teeth. Press on planetary carrier (92) instead of the shaft or the bearing.

  1. Use Tooling (J) and a suitable press to remove shaft (111) from bearing (112) and planetary housing (102) .
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    Illustration 65g01228497

  1. Use Tooling (E) and a suitable lifting device in order to remove planetary housing (102) from planetary carrier (92). The weight of planetary housing (102) is approximately 45 kg (100 lb).

  1. Perform Steps 36 through 41 in order to disassemble planetary carrier (92) .
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    Illustration 66g01228538

  1. Remove output shaft (113) from planetary carrier (92) .
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    Illustration 67g01228539

  1. Use Tooling (J) and Tooling (G) in order to remove bearing cone (114) from planetary carrier (92) .
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    Illustration 68g01228478

  1. Remove spacer assembly (115) .
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    Illustration 69g01228480

  1. Use Tooling (F) to remove retaining ring (116) from spacer (115) .

  1. Invert the planetary housing in order to complete the disassembly procedure.
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    Illustration 70g01228532

  1. Remove piston (117) from planetary housing (102) .
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    Illustration 71g01228533

  1. Remove seal (118) and (119) from piston (120) .
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    Illustration 72g01228534

  1. Remove seal (121) .
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    Illustration 73g01228536

  1. Remove bearing races (123) .

  1. Remove spacer (124) and retaining ring (122) .

  1. Place the planetary carrier on suitable blocking.

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