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TH31 Well Servicing Transmissions Caterpillar


Transmission Planetary - Assemble

Usage:

TH31-E61 LAD

Assembly Procedure

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Table 1
Tools Needed    
Tool     Part Number     Part Description     Qty    
A     138-7573     Link Bracket     3    
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     1    
F     2P-8312     Retaining Ring Pliers     1    
K     1U-9200     Lever Puller Hoist     1    
L     1P-2420     Transmission Repair Stand     1    
J     1P-0510     Driver Gp     1    
N     4C-4030     Thread Lock Compound     1    

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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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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 Dealer Service Tool Catalog" 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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NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.

Note: Cleanliness is an important factor. Before assembly, all parts should be thoroughly cleaned. Inspect all parts. If any parts are worn or damaged, use new parts for replacement. All disassembly and all assembly procedures must be performed on a clean work surface and in a clean hydraulic area. Keep cleaned parts covered and protected at all times.

Note: Prior to assembly, all threads that require sealant must be cleaned with a tap.

Note: O-ring seals, gaskets, and seals should always be replaced. A used O-ring may not have the same sealing properties as a new O-ring. Use Tooling (L) during the assembly procedure.

Note: Apply a light film of transmission oil to all components before assembly.

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    Illustration 1g01228536

  1. Install retaining ring (122) and spacer (124). Lower the temperature of bearing races (123). Install the bearing races (123) against the spacer (124) .
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    Illustration 2g01228534

  1. Install seal (121) .
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    Illustration 3g01228533

  1. Install seal (118) and (119) into the seal grooves of piston (120) .

    Note: Lubricate the piston seals lightly with the lubricant that is being sealed.

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    Illustration 4g01228532

  1. Install piston (117) into planetary housing (102) .
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    Illustration 5g01228480

  1. Use Tooling (F) in order to install retaining ring (116) onto spacer (115) .
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    Illustration 6g01230295

  1. Install spacer assembly (115) .
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    Illustration 7g01228796

  1. Raise the temperature of roller bearing cone (114). Install roller bearing cone (114) onto planetary carrier (92) .
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    Illustration 8g01228538

  1. Invert the planetary carrier (92). Install shaft (113) .
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    Illustration 9g01231631

  1. Install needle bearing (59) into gear (60) .

  1. Position gear (60), needle bearing (59) and washers (58) and (61) .

  1. Install shaft (57) through the planetary carrier and gear (60) .

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    NOTICE

    The spring pins must be replaced with new parts during the assembly of the carrier assembly.

    Failure to use new spring pins could result in damage to the carrier assembly.

  1. Insert a new spring pin (56) in order to secure shaft (57) in the planetary carrier.

  1. Repeat Steps 9 through 12 for the remaining gears.

  1. Invert the carrier (92) and position planetary carrier assembly (92) on suitable blocking. The weight of the planetary carrier assembly (92) is approximately 30 kg (65 lb).
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    Illustration 10g01228497

  1. Attach Tooling (E) and a suitable lifting device to planetary housing (102). Install planetary housing (102) onto planetary carrier (92). The weight of planetary housing (102) is approximately 45 kg (100 lb).
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    Illustration 11g01230296

  1. Raise the temperature of bearing cone (119). Install bearing cone (119) into housing (102) .
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    Illustration 12g01228475

  1. Install rotor (110) .
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    Illustration 13g01228473

  1. Apply Tooling (D) and install the seal (109) into retainer (108).
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    Illustration 14g01228471

  1. Position retainer (108) in planetary housing (102). Install bolts (107) in order to secure the retainer (108) in position.
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    Illustration 15g01228469

  1. Position output yoke (103), O-ring seal (104), and washer (105). Apply Tooling (N) to the threads of bolt (106) and install bolt (106). Tighten bolt (106) to a torque of 270 ± 40 N·m (200 ± 30 lb ft).
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    Illustration 16g01228465

  1. Invert planetary housing (102) and mount planetary housing (102) on Tooling (L). The weight of planetary housing (102) is 73 kg (160 lb).
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    Illustration 17g01228460

  1. Position shaft (89) into planetary carrier (92) .
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    Illustration 18g01228447

  1. Install seal rings (99) into carrier (98) .
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    Illustration 19g01228438

  1. Install planetary carrier (92) over shaft (89) and into planetary carrier (92). Install sun gear (96) on shaft (89). Use Tooling (D) to install retaining ring (97) .
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    Illustration 20g01228437

  1. Perform Steps 9 through 13 in order to assemble planetary carrier (90) .

  1. Use Tooling (A) to install retaining ring (94) in the planetary assembly.

  1. Install Tooling (B) into the planetary assembly.

  1. Install retaining ring (95) into the ring groove of the planetary carrier. Use Tooling (B) and a suitable hoist in order to position the planetary carrier into the gear (91) .

    Note: The retaining ring should snap into the ring groove of the planetary carrier and the ring groove of the gear in order to secure the planetary carrier to the gear.

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    Illustration 21g01228436

  1. Install disc (93) in the planetary carrier.

    Note: Ensure that the disc is seated and flush with the planetary carrier.

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    Illustration 22g01228435

  1. Position planetary carrier (90) and ring gear (91) over center shaft (89) and planetary carrier (92) .
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    Illustration 23g01226625

  1. Position dowel rods (85) into the housing. Install plates (86) and discs (87). Install O-ring seal (88) .
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    Illustration 24g01226616

  1. Install steel rods (82). Install springs (84) onto the steel rods (82) .
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    Illustration 25g01226615

  1. Use two people in order to position housing (79) onto planetary housing (55). The weight of planetary housing (55) is 40 kg (85 lb).

  1. Install bolts (83) .
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    Illustration 26g01226614

  1. Install seals (80) and (81) onto piston (78) .

    Note: Lubricate the piston seals lightly with the lubricant that is being sealed.

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    Illustration 27g01226611

  1. Install piston (78) into housing (79) .
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    Illustration 28g01228285

  1. Install thrust bearing race (77) .
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    Illustration 29g01228282

  1. Install thrust bearing (76) .
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    Illustration 30g01226504

  1. Install thrust bearing race (75) .
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    Illustration 31g01226503

  1. Install thrust disc (74) onto the planetary carrier.
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    Illustration 32g01226471

  1. Install gear (73) onto thrust disc (74) .
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    Illustration 33g01226469

  1. Install dowel rods (72) .
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    Illustration 34g01230501

  1. Install gear (68) .

  1. Install plate (70) .

  1. Install friction discs (71) and the remaining steel plates onto the first steel disc.

  1. Install springs (69) .
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    Illustration 35g01226462

  1. Position O-ring seal (67) in position.
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    Illustration 36g01226461

  1. Install seals (65) and (66) onto piston (64) .

  1. Lubricate the piston seals lightly with the lubricant that is being sealed prior to the performance of the next step.
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    Illustration 37g01226459

  1. Install piston (64) into planetary housing (46). Install Tooling (E) on the housing.
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    Illustration 38g01231659

  1. Use Tooling (E) and a suitable lifting device to install planetary housing (46). The weight of planetary housing (46) is approximately 40 kg (85 lb).
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    Illustration 39g01226456

  1. Install compression ring (56). Position the carrier (52) into the gear (52) .

  1. Perform Steps 9 through 13 in order to assemble carrier (64) .
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    Illustration 40g01230435

  1. Install disc (53) in carrier (52) and gear (51) .
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    Illustration 41g01226449

  1. Position gear (51) and the carrier (52) .
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    Illustration 42g01226447

  1. Install discs (50) and plates (49) onto the first steel plate.
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    Illustration 43g01226446

  1. Install springs (48) and O-ring seal (47) .
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    Illustration 44g01226443

  1. Attach Tooling (E) and a suitable lifting device to transmission case (42) and position transmission case (42) onto planetary housings (46). The weight of transmission case (42) is approximately 90 kg (200 lb).
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    Illustration 45g01226439

  1. Position carrier (43) and install bolts (45).

  1. Install seal (44) onto carrier (43) .
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    Illustration 46g01226426

  1. Invert manifold (41) in order to install seals (42) onto carrier (43) .
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    Illustration 47g01226425

  1. Position manifold (41) inside the transmission case.

  1. Install bolts (40). Tighten bolts (40) to a torque of 270 ± 40 N·m (200 ± 30 lb ft).
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    Illustration 48g01229751

  1. Raise the temperature of bearing (39). Use Tooling (J) to install bearing (39) onto housing (26) .
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    Illustration 49g01226422

  1. Invert the housing in order to install seal (38) .
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    Illustration 50g01226416

  1. Install seal (37) into piston (31). Size the seal by holding a round object against the seal. Rotate the round object around the diameter of the piston until the seal is flush with the edge of the piston groove.

    Note: Lubricate the piston seal lightly with the lubricant that is being sealed.

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    Illustration 51g01226405

  1. Install piston (31) into housing (26) .
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    Illustration 52g01226400

  1. Position springs (36) in piston (31) .
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    Illustration 53g01226397

  1. Install seal (35) .

  1. Use Tooling (D) to install retaining ring (34) into balance piston (33) .

    Note: Lubricate the piston seal lightly with the lubricant that is being sealed.

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    Illustration 54g01226394

  1. Position balance piston (33) .

  1. Install bolts (32) in order to secure the balance piston in position. Tighten bolts (32) to a torque of 125 ± 10 N·m (92 ± 7 lb ft).
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    Illustration 55g01226378

  1. Position hub (30) .

  1. Install dowel rods (29) .
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    Illustration 56g01226375

  1. Install friction discs (27) and steel plate (28) .
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    Illustration 57g01231677

  1. Attach Tooling (E) and a suitable lifting device. Position end plate (25) on clutch housing (26) .

  1. Install bolts (24) .
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    Illustration 58g01226371

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

  1. Install remaining bolts.
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    Illustration 59g01226370

  1. Install retaining ring (23) into the groove of the end plate.
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    Illustration 60g01226368

  1. Install disc (21) .

  1. Install retaining ring (22) .
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    Illustration 61g01228229

  1. Install seals (19) from piston (20) .
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    Illustration 62g01226037

  1. Install piston (18) and retaining ring (17) .
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    Illustration 63g01225989
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    Illustration 64g01225992

  1. Install bevel springs (16). Use Tooling (C) to install retainer (15) .
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    Illustration 65g01225980

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

    Improper assembly of parts that are spring loaded can cause bodily injury.

    To prevent possible injury, follow the established assembly procedure and wear protective equipment.

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  1. Use Tooling (C) and a suitable press to depress retainer (15). Use Tooling (B) to install retaining ring (15A) .
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    Illustration 66g01223210

  1. Install disc (13) and races (14) .
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    Illustration 67g01223206

  1. Install plates (12), discs (11), and hub (10) .
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    Illustration 68g01222730

  1. Remove plate (9) and retaining ring (8) .
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    Illustration 69g01222727

  1. Install bearing (7). Use Tooling (B) to install retaining ring (6).
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    Illustration 70g01222726

  1. Connect plate (1) . Use Tooling (B) to install retaining ring (5) .
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    Illustration 71g01222684

  1. Attach Tooling (A) and a suitable lifting device to plate (1). The weight of No. 1 rotating clutch (2) and plate (1) is approximately 31 kg (70 lb). Position plate (1) and No. 1 rotating clutch (2) as a unit. Install bolts (4) to a torque of 55 ± 10 N·m (40 ± 7 lb ft). Install bolts (3) to a torque of 12 ± 3 N·m (106 ± 26 lb in).

End By: Connect the torque converter housing from the transmission case. Refer to Disassembly and Assembly, "Torque Converter Housing - Install".

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