Torque Converter - Disassemble
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| Required Tools | |||
| Tool | Part Number | Part Description | Qty |
| A | 439-3938 | Link Bracket | 3 |
| B | 5B-4274 | Bolt | 3 |
| C | 154-6181 | Forcing Screw | 1 |
| D | 8B-7548 | Push-Puller Tool Gp | 1 |
| 8H-0684 | Ratchet Wrench | 1 | |
| 8B-7549 | Puller Leg | 2 | |
| 5P-4808 | Cap | 2 | |
| 8B-7554 | Bearing Cup Puller Gp | 1 | |
| E | 8B-7548 | Push-Puller Tool Gp | 1 |
| 8B-7550 | Push Puller Leg | 2 | |
| 8H-0684 | Ratchet Wrench | 1 | |
| 8B-7560 | Step Plate | 1 | |
| 8H-0663 | Bearing Puller Gp | 1 | |
| F | 5J-0490 | Bolt | 1 |
| G | 5F-7343 | Bearing Puller Gp | 1 |
| 1P-0520 | Driver Gp | 1 | |
Start By:
- Separate the torque converter from the transmission and the output transfer gears.
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| NOTICE |
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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. |
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| NOTICE |
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Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. |
- Position torque converter assembly (1) onto suitable cribbing. The weight of torque converter assembly (1) is approximately
242 kg (534 lb) .Show/hide table
Illustration 2 g03674083 - Remove bolts (2) and the washers.
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Illustration 3 g03674086 - Attach Tooling (A) and a suitable lifting device to torque converter housing (3). The weight of torque converter housing (3) is approximately
120 kg (265 lb) . - Install Tooling (B). Use Tooling (B) in order to loosen torque converter housing (3) from the torque converter.
- Use Tooling (A) and the suitable lifting device in order to remove torque converter housing (3) from the torque converter.
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Illustration 4 g03674126 - Remove O-ring seal (4) from pump adapter (5).
- Remove bolts (6) and the washers from pump adapter (5).
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Illustration 5 g03674186 - Use Tooling (C) in order to remove pump adapter (5) from torque converter housing (3).
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Illustration 6 g03674346 - Use Tooling (D) in order to remove bearing cup (6) from pump adapter (5).
- Remove O-ring seal (8) and shims (7) from pump adapter (5).
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Illustration 7 g03674374 - Remove adapter (9) and the O-ring seal.
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Illustration 8 g03674377 - Remove drive gear (10).
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Illustration 9 g03674384 - Use Tooling (D) in order to remove bearing cup (11) from torque converter housing (3).
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Illustration 10 g03674389 - Use Tooling (E) in order to remove bearing cones (12) from each side of drive gear (10).
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Illustration 11 g03674411 - Remove manifold (13) and the O-ring seal.
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Illustration 12 g03674417 - Remove relief valve body (14) and the two O-ring seals.
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Illustration 13 g03674481 - Remove bolt (15) and the washer from torque converter housing (3).
- Use Tooling (F) in order to push shaft assembly (19) (not shown) out of torque converter housing (3).
- Remove idler gear (16) from torque converter housing (3).
- Remove spring pins (17).
- Remove O-ring seal (18).
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Illustration 14 g03674505 - Remove O-ring seal (20) from shaft assembly (19).
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Illustration 15 g03674512 - Remove bearing cone (21), bearing cone spacer (22), and bearing cone (23) from idler gear (16).
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Illustration 16 g03674519 - Use Tooling (D) in order to remove bearing cup (24) from idler gear (16).
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Illustration 17 g03674525 - Remove bearing cup spacer (25) from idler gear (16).
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Illustration 18 g03674544 - Use Tooling (D) in order to remove the remaining bearing cup (26) from idler gear (16).
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Illustration 19 g03674545 - Remove retaining ring (27) from idler gear (16).
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Illustration 20 g03674815 - Reposition torque converter (28), as shown, onto suitable cribbing. The weight of torque converter (28) is approximately
118 kg (260 lb) .Show/hide table
Illustration 21 g03674827 - Remove bolts (29) and the washers. Use two people in order to remove clutch housing assembly (30). The weight of clutch housing assembly (30) is approximately
26 kg (57 lb) .Show/hide table
Illustration 22 g03674844 - Remove plug assemblies (31) and the O-ring seal from clutch housing assembly (30). Remove plug (33).
- Remove ring (32) from clutch housing assembly (30).
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Illustration 23 g03674854 - Remove piston (34) from clutch housing assembly (30).
- Remove bearing sleeve (35) from clutch housing assembly (30).
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Illustration 24 g03674880 - Remove seal rings (36) from piston (34).
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Illustration 25 g03674887 - Remove splined plate (37).
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Illustration 26 g03674905 - Remove friction disc (38) and backing plate (39).
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Illustration 27 g03674917 - Remove bolts (40) and coupling assembly (41).
- Remove dowels (42).
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Illustration 28 g03674946 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 (43) and the nuts. Remove cover (44) from coupling assembly (41). Remove springs (45).
Note: Note the orientation of springs (45) for assembly purposes.
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Illustration 29 g03675083 - Remove thrust bearing race (46), thrust bearing (47), and race (48).
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Illustration 30 g03675105 - Remove retaining ring (49) and plate (50).
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Illustration 31 g03675130 - Install two bolts (40), as shown, through turbine (51) and into turbine hub (52). Remove turbine (51) and turbine hub (52) as one unit.
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Illustration 32 g03675174 - Remove bolts (40) in order to separate turbine (51) from turbine hub (52).
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Illustration 33 g03675181 - Remove retaining ring (53) and split pins (54) from turbine hub (52).
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Illustration 34 g03675185 - Remove thrust bearing race (55) and thrust bearing (56).
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Illustration 35 g03675217 - Remove stator (57).
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Illustration 36 g03675225 Show/hide tablePersonal 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 retaining ring (58) and plate (59) from stator (57).
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Illustration 37 g03675234 - Remove retaining ring (60), freewheel rollers (62), and freewheel springs (61) from stator (57).
Note: Mark the orientation of flywheel springs (61) for assembly purposes.
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Illustration 38 g03675239 - Flip stator (57) over and remove retaining ring (63). Remove plate (64) and freewheel cam (65).
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Illustration 39 g03675275 - Remove thrust bearing (66).
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Illustration 40 g03675448 - Attach Tooling (A) and a suitable lifting device to impeller (67). The weight of impeller (67) is approximately
35 kg (77 lb) . Use Tooling (A) and the suitable lifting device in order to remove impeller (67) from shaft assembly (68).Show/hide table
Illustration 41 g03675481 - Position impeller (67) onto suitable cribbing.
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Illustration 42 g03675484 - Remove bolts (68) and the washers. Remove drive gear (69).
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Illustration 43 g03675526 - Remove bearing outer race (70) from drive gear (69).
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Illustration 44 g03675529 - Remove retaining ring (71) and support carrier (72).
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Illustration 45 g03675533 - Remove seal ring (73), retaining ring (74), and O-ring seal (75) from support carrier (72).
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Illustration 46 g03675543 - Use Tooling (G) and a suitable press in order to remove bearing (76) from support carrier (72).
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Illustration 47 g03675891 - Remove retaining ring (78) and carrier assembly (77) from impeller (67).
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Illustration 48 g03675910 - Remove bearing (79) from carrier assembly (77).
Note: Note the orientation of bearing (79) for assembly purposes.
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Illustration 49 g03675918 - Remove bushing (80) from carrier assembly (77).
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| Illustration 1 | g03674077 |
- Remove bolts (81), thrust bearing race (82), hub (83), and adapter (84) from impeller (67).
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Illustration 51 g03675966 - Remove seal metal ring (85) and seal rings (86) from shaft assembly (68).
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| Illustration 50 | g03675945 |
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