This document provides instructions for disassembling and assembling the torque converter of a 972L wheel loader. It lists 45 steps for disassembly, which include removing various components like the torque converter housing, pump drive gear, turbine, stator, and bearings. It then lists 13 steps for assembly, which involve installing corresponding components in reverse order. Tools required include lifting eyes, drivers, and bearing pullers. Cautions are provided about containing fluids and releasing spring forces.
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2. Shutdown SIS
Previous Screen
Product: WHEEL LOADER
Model: 972L WHEEL LOADER RFB
Configuration: 972L Wheel Loader RFB00001-UP (MACHINE) POWERED BY C9.3 Engine
Disassembly and Assembly
966M T3, 972M T3, 966L T3 and 972L T3 Wheel Loader Power Train
Media Number -M0071452-04 Publication Date -01/02/2018 Date Updated -26/02/2018
i05275562
Torque Converter (Freewheel Stator) (Lockup) - Disassemble
SMCS - 3101-015-L7
Disassembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 422-5472 Lifting Eye Assembly 3
B 1P-0520 Driver Gp 1
C 8H-0663 Bearing Puller Gp 1
Start By:
a. Separate the torque converter from the transmission and from the output transfer gears.
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
NOTICE
Care must be taken to ensure that fluids are contained during
performance of inspection, maintenance, testing, adjusting, and repair
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3. 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.
Illustration 1 g02139353
1. Use Tooling (A) and a suitable lifting device to position torque converter assembly (1) on
suitable blocking, as shown. The weight of torque converter assembly (1) is approximately
186 kg (410 lb).
Illustration 2 g03569471
2. Remove torque converter speed sensor (2), the seal, and the washer.
3. Remove gear (3) from torque converter assembly (1).
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4. Illustration 3 g02139369
4. Remove bolts (4) and washers that hold the torque converter to the torque converter
housing.
5. Remove O-ring seal (5).
Illustration 4 g02139386
6. Remove pump drive flange (6).
Illustration 5 g02139389
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5. 7. Remove bolt (7) and the washer that holds drive gear shaft (8) to the torque converter
housing.
8. Remove drive gear shaft (8) from pump drive gear (9).
Illustration 6 g03355946
9. Use Tooling (A) and a suitable lifting device to torque converter housing (10). The weight
of torque converter housing (10) is approximately 100 kg (220 lb). Use Tooling (A) and the
suitable lifting device in order to remove torque converter housing (10).
Illustration 7 g03356175
10. Remove pump drive gear (9) from the torque converter housing.
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6. Illustration 8 g03356180
11. Remove bearing (11) from pump drive gear (9). Use Tooling (B) in order to remove bearing
(11).
Illustration 9 g03355259
12. Position torque converter (12) on the opposite side that is shown.
Illustration 10 g03355265
13. Remove seal (14). Remove bolts (13).
Illustration 11 g03355293
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7. 14. Install two bolts (13), as shown. Use bolts (13) as pusher bolts in order to separate housing
assembly (15) from the torque converter.
Illustration 12 g03355307
15. Remove bushing (16) from housing assembly (15). Remove O-ring seal (17).
Illustration 13 g03355310
16. Remove piston (18).
Illustration 14 g03355350
17. Remove seal ring (19) from piston (18).
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8. Illustration 15 g03355353
18. Remove bolts (20) and remove coupling assembly (21).
Illustration 16 g03355362
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.
19. Remove bolts (22) from coupling assembly (21). Remove plate (23).
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9. Illustration 17 g03355386
20. Remove springs (24). Remove springs (25) and (26) from the insides of springs (24).
Note: Notice the difference in lengths of springs (25) and (26).
Illustration 18 g03355408
21. Remove plate (27).
Illustration 19 g03355416
22. Remove clutch disc (28).
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11. Illustration 23 g03355490
26. Remove retaining ring (32) and washer (33).
Illustration 24 g03355497
27. Install two bolts (20), as shown, through turbine (34) and into turbine hub (35). Remove
turbine (34) and turbine hub (35) as one unit.
Illustration 25 g03355507
28. Remove bolts (20) and separate turbine (34) from turbine hub (35).
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13. Illustration 29 g03357298
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.
32. Flip stator (37) over and remove retaining ring (40). Remove plate (41).
Illustration 30 g03357299
33. Remove race (42), freewheel rollers (44), and freewheel springs (43).
Note: Mark the orientation of freewheel springs for assembly purposes.
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14. Illustration 31 g03357305
34. Use Tooling (B) and a suitable press in order to remove cam (45) (not shown) from stator
(37).
Illustration 32 g03355514
35. Remove thrust bearing (46).
Illustration 33 g03355520
36. Remove bolts (47). Remove impeller hub (48) and impeller (49).
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15. Illustration 34 g03355529
37. Remove impeller (49) from impeller hub (48).
Illustration 35 g03355533
38. Remove retaining ring (50) and remove stator carrier assembly (51).
Illustration 36 g03355612
39. Remove retaining ring (52) from stator carrier assembly (51).
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16. Illustration 37 g03355615
40. Use a suitable press in order to separate gear (53) from stator carrier assembly (51).
Illustration 38 g03355618
41. Use Tooling (B) and a suitable press in order to remove bearing (54) (not shown) from gear
(53).
Illustration 39 g03355621
42. Remove seal (55) from stator carrier assembly (51).
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17. Illustration 40 g03355625
43. Remove retaining ring (56) and bearing (57).
Illustration 41 g03355638
44. Remove seals (59) from shaft (58). Remove seal (60).
Illustration 42 g03355644
45. Use Tooling (C) and a suitable press in order to remove bearing race (61) from shaft (58).
Copyright 1993 - 2021 Caterpillar Inc.
All Rights Reserved.
Mon Apr 12 21:56:53 UTC+0800 2021
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18. Private Network For SIS Licensees.
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19. Shutdown SIS
Previous Screen
Product: WHEEL LOADER
Model: 972L WHEEL LOADER RFB
Configuration: 972L Wheel Loader RFB00001-UP (MACHINE) POWERED BY C9.3 Engine
Disassembly and Assembly
966M T3, 972M T3, 966L T3 and 972L T3 Wheel Loader Power Train
Media Number -M0071452-04 Publication Date -01/02/2018 Date Updated -26/02/2018
i05277906
Torque Converter (Freewheel Stator) (Lockup) - Assemble
SMCS - 3101-016-L7
Assembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 422-5472 Lifting Eye Assembly 3
B 1P-0520 Driver Gp 1
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
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20. Illustration 1 g03355787
1. Use a suitable press in order to install bearing race (61) onto shaft (58).
Illustration 2 g03355638
2. Install seals (59) onto shaft (58). Install seal (60).
Illustration 3 g03355625
3. Install bearing (57) and retaining ring (56).
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21. Illustration 4 g03355621
4. Install seal (55) onto stator carrier assembly (51).
Illustration 5 g03355790
5. Use Tooling (B) and a suitable press in order to install bearing (54) (not shown) into gear
(53).
Illustration 6 g03355793
6. Use Tooling (B) and a suitable press in order to install stator carrier assembly (51) into gear
(53).
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23. Illustration 10 g03355520
10. Install impeller hub (48) and impeller (49). Install bolts (47). Tighten bolts (47) to a torque
of 60 ± 7 N·m (44 ± 5 lb ft).
Illustration 11 g03355514
11. Install thrust bearing (46).
Illustration 12 g03357305
12. Use Tooling (B) and a suitable press in order to install cam (45) (not shown) into stator (37).
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24. Illustration 13 g03357299
Illustration 14 g03357350
13. Install race (42), freewheel springs (43), and freewheel rollers (44).
Note: Be sure to install freewheel springs with the lesser number of loops going toward race
(42), as shown in Illustration 14.
Illustration 15 g03357298
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25. 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.
14. Install plate (41) and retaining ring (40) into stator (37).
Illustration 16 g03357296
15. Flip the stator over and install plate (39) and retaining ring (38).
Illustration 17 g03355513
16. Install stator (37).
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26. Illustration 18 g03355511
17. Install thrust bearing (36).
Illustration 19 g03355507
18. Connect turbine (34) to turbine hub (35). Install two bolts (20) in order to keep turbine (34)
and turbine hub (35) together during the Step 19.
Illustration 20 g03355497
19. Install turbine (34) to turbine hub (35) as one unit. Remove bolts (20).
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29. Illustration 27 g03355386
26. Install springs (26) and (25) inside of springs (24). Install springs (24) in an alternating
pattern. An example would be to install a spring (24) and with a spring (25) inside. The next
one would be to install a spring (24) with a spring (26) inside.
Illustration 28 g03355362
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.
27. Install plate (23) to coupling assembly (21). Install bolts (22). Tighten bolts (22) to a torque
of 50 ± 10 N·m (37 ± 7 lb ft).
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30. Illustration 29 g03355353
28. Install coupling assembly (21). Install bolts (20). Tighten bolts (20) to a torque of
60 ± 7 N·m (44 ± 5 lb ft).
Illustration 30 g03355350
29. Install seal ring (19) into piston (18).
Illustration 31 g03355310
30. Install piston (18).
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31. Illustration 32 g03355307
31. Install O-ring seal (17). Install bushing (16) into housing assembly (15).
Illustration 33 g03355853
32. Install housing assembly (15) into the torque converter.
Illustration 34 g03355265
33. Install bolts (13). Tighten bolts (13) to a torque of 60 ± 7 N·m (44 ± 5 lb ft). Install seal
(14).
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32. Illustration 35 g03355259
34. Position torque converter (12) as shown.
Illustration 36 g03356180
35. Use Tooling (B) in order to install bearing (11) in pump drive gear (9).
Illustration 37 g03355946
36. Attach Tooling (A) and a suitable lifting device to torque converter housing (10). The
weight of torque converter housing (10) is approximately 100 kg (220 lb). Use Tooling (A)
and the suitable lifting device in order to install torque converter housing (10) over the
torque converter.
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33. Suggest:
If the above button click is invalid.
Please download this document
first, and then click the above link
to download the complete manual.
Thank you so much for reading
34. Illustration 38 g02139389
37. Install pump drive gear (9) and drive gear shaft (8).
38. Install bolt (7) and the washer that holds drive gear shaft (8) to the torque converter housing.
Tighten bolt (7) to a torque of 240 ± 40 N·m (180 ± 30 lb ft).
Illustration 39 g03356370
39. Install pump drive flange (6) and bolts (62). Tighten bolts (62) to a torque of 60 ± 12 N·m
(44 ± 9 lb ft).
Illustration 40 g02139369
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