This document provides instructions for disassembling the torque converter components of a 988K wheel loader. It lists over 70 separate steps to remove parts like the housing assembly, shaft assembly, carrier assembly, impeller, piston, and hub. Special tools are required for tasks like separating housings and pulling bearings. Proper lifting equipment and safety precautions are advised given the significant weights of parts like the housing assembly and shaft assembly.
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𝘼𝙣𝙩𝙞𝙦𝙪𝙚 𝙋𝙡𝙖𝙨𝙩𝙞𝙘 𝙏𝙧𝙖𝙙𝙚𝙧𝙨 𝙞𝙨 𝙫𝙚𝙧𝙮 𝙛𝙖𝙢𝙤𝙪𝙨 𝙛𝙤𝙧 𝙢𝙖𝙣𝙪𝙛𝙖𝙘𝙩𝙪𝙧𝙞𝙣𝙜 𝙩𝙝𝙚𝙞𝙧 𝙥𝙧𝙤𝙙𝙪𝙘𝙩𝙨. 𝙒𝙚 𝙝𝙖𝙫𝙚 𝙖𝙡𝙡 𝙩𝙝𝙚 𝙥𝙡𝙖𝙨𝙩𝙞𝙘 𝙜𝙧𝙖𝙣𝙪𝙡𝙚𝙨 𝙪𝙨𝙚𝙙 𝙞𝙣 𝙖𝙪𝙩𝙤𝙢𝙤𝙩𝙞𝙫𝙚 𝙖𝙣𝙙 𝙖𝙪𝙩𝙤 𝙥𝙖𝙧𝙩𝙨 𝙖𝙣𝙙 𝙖𝙡𝙡 𝙩𝙝𝙚 𝙛𝙖𝙢𝙤𝙪𝙨 𝙘𝙤𝙢𝙥𝙖𝙣𝙞𝙚𝙨 𝙗𝙪𝙮 𝙩𝙝𝙚 𝙜𝙧𝙖𝙣𝙪𝙡𝙚𝙨 𝙛𝙧𝙤𝙢 𝙪𝙨.
Over the 10 years, we have gained a strong foothold in the market due to our range's high quality, competitive prices, and time-lined delivery schedules.
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civilthings.com Present Autonomous vehicles, also known as self-driving cars, represent a groundbreaking advancement in transportation technology. These vehicles utilize sophisticated sensors, advanced software, and machine learning algorithms to navigate roads and transport passengers without human intervention. Major companies in the autonomous vehicle industry are investing heavily in the development and testing of these innovative machines, aiming to enhance safety, efficiency, and convenience on the roads.
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2. Shutdown SIS
Previous Screen
Product: WHEEL LOADER
Model: 988K WHEEL LOADER TWX
Configuration: 988K Wheel Loader TWX00001-UP (MACHINE) POWERED BY C18 Engine
Disassembly and Assembly
836K Landfill Compactor, 834K Wheel Dozer and 988K Wheel Loader Power Train
Media Number -KENR6490-06 Publication Date -01/09/2015 Date Updated -05/12/2017
i02071477
Torque Converter (Lockup) - Disassemble
SMCS - 3101-015-L7
Disassembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A
138-7573 Link Bracket 1
138-7575 Link Bracket 2
B
5F-7366 Screw 1
3H-0465 Plate 2
1P-5546 Crossblock 1
5H-7369 Puller Leg 2
6B-6682 3/4" - 16 NF Nut 2
1P-0520 Driver Gp 1
4C-5653 Threaded Adapter 2
C 188-1456 Metric Eyebolt 1
D 138-7575 Link Bracket 2
E 138-7575 Link Bracket 3
F 5F-7366 Screw 1
3H-0465 Plate 2
1P-5546 Crossblock 1
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3. 5H-7369 Puller Leg 2
8B-7551 Bearing Puller 1
6B-6682 3/4" - 16 NF Nut 2
1P-0520 Driver Gp 1
G
5F-7366 Screw 1
3H-0465 Plate 2
1P-5546 Crossblock 1
8B-7549 Puller Leg 2
5F-7343 Bearing Puller 1
6B-6682 3/4" - 16 NF Nut 2
1P-0520 Driver Gp 1
5F-7342 Adapter 2
H 1P-0520 Driver Gp 1
J 138-7574 Link Bracket 2
Start By:
a. Remove the torque converter. Refer to Disassembly and Assembly, "Torque Converter -
Remove" for the machine that is being serviced.
b. Remove the transmission oil pump. Refer to Disassembly and Assembly, "Transmission Oil
Pump - Remove" for the machine that is being serviced.
c. Remove the torque converter outlet relief valve. Refer to Disassembly and Assembly,
"Relief Valve (Torque Converter Outlet) - Remove" for the machine that is being serviced.
d. Remove the modulating valve for the torque converter impeller clutch. Refer to
Disassembly and Assembly, "Modulating Valve (Torque Converter Impeller Clutch) -
Remove" for the machine that is being serviced.
e. Remove the modulating valve for the torque converter lockup clutch. Refer to Disassembly
and Assembly, "Modulating Valve (Torque Converter Lockup Clutch) - Remove" for the
machine that is being serviced.
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4. Illustration 1 g00673844
1. Place the torque converter assembly on cribbing. The weight of the torque converter
assembly is 545 kg (1200 lb).
Illustration 2 g00660841
2. Remove speed sensor (1).
Illustration 3 g00665406
3. Remove bolt (2) and retainer (3).
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5. Illustration 4 g00665411
4. Remove O-ring seal (4) and yoke (5).
Illustration 5 g00665412
5. Remove eleven bolts (6) and the washers.
Illustration 6 g00665414
6. Install Tooling (A) to housing assembly.
7. Attach a suitable lifting device and lifting chains to Tooling (A).
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6. 8. Use M12 x 1.75 forcing screws in order to separate housing assembly from the torque
converter.
9. Use the suitable lifting device in order to remove housing assembly. The weight of the
housing assembly is 285 kg (630 lb).
Illustration 7 g00660846
10. Remove eight bolts (7) and retainer (8).
Illustration 8 g00660847
11. Remove seal (9) from retainer (8).
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7. Illustration 9 g00660849
12. Remove gasket (10).
13. Remove O-ring seal (11) and (12).
Illustration 10 g00673879
Illustration 11 g00673880
14. Position torque converter assembly onto the side, as shown.
15. Remove six bolts (13) and cover (14).
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8. Illustration 12 g00673881
16. Remove two bolts (15), retainer (16), and washer (17).
Illustration 13 g00673882
17. Use Tooling (B) in order to push the shaft out of the bearing.
Illustration 14 g00673883
18. Position torque converter assembly upright, as shown.
19. Install Tooling (C) to shaft assembly (18).
20. Attach a suitable lifting device and a sling to Tooling (C).
21. Use the suitable lifting device in order to remove shaft assembly (18). The weight of shaft
assembly (18) is 17 kg (38 lb).
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9. Illustration 15 g00673886
22. Use a suitable press in order to remove bearing (19) and seal carrier (20) from inner shaft
(18).
Illustration 16 g01061064
Illustration 17 g01061071
23. Remove 36 bolts (21), and washers (22). Do not remove two bolts (25) at this time.
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10. Illustration 18 g00673887
24. Install Tooling (D).
25. Attach a suitable lifting device and lifting slings to Tooling (D).
26. Use the suitable lifting device in order to remove carrier assembly (23). The weight of
carrier assembly (23) is 132 kg (290 lb).
Illustration 19 g00673888
27. Place carrier assembly (23), as shown.
28. Remove stator (24).
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11. Illustration 20 g01060995
Illustration 21 g01061000
29. Remove retaining ring (29) and plate (28) from stator (24). Remove ring (26) (not shown),
and plate (27) (not shown) from the other side of stator (24).
30. Use a suitable press in order to remove adapter (30) from stator (24).
Illustration 22 g00674499
31. Remove spacer (33).
Illustration 23 g00674501
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12. 32. Remove bearing (34).
33. Remove the plate and the ring below bearing (34).
Illustration 24 g00674503
34. Remove retaining ring (35).
Illustration 25 g00674504
35. Use two persons in order to remove impeller (36). The weight of impeller (36) is 29 kg
(65 lb).
Illustration 26 g00674505
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13. 36. Remove race (37) from impeller (36).
Illustration 27 g00674506
37. Remove twelve bolts (38) and the washers.
38. Remove impeller (36) from adapter assembly (39).
Illustration 28 g00674507
39. Remove bearing (40).
40. Remove the plate and the ring below bearing (40).
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14. Illustration 29 g01061078
41. Remove two bolts (25) and plate (41).
Note: Bolts (25) are on the underside of plate (41).
Illustration 30 g00674510
42. Remove two friction discs (42) and one wear plate.
Illustration 31 g00674512
43. Remove piston (43).
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15. Illustration 32 g00674516
44. Remove seal (44) from piston (43).
Illustration 33 g00674514
45. Install Tooling (E) to housing assembly (45).
46. Attach a suitable lifting device and slings to housing assembly (45).
47. Use the suitable lifting device in order to remove housing assembly (45). The weight of
housing assembly (45) is 45 kg (100 lb).
Illustration 34 g00674519
48. Remove twelve bolts (46) and gear (47) from housing assembly (45).
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16. Illustration 35 g00674520
49. Remove race (48) from gear (47).
Illustration 36 g00674521
50. Remove eight bolts (49) and sleeve (50).
Illustration 37 g00674522
51. Remove seal (51) from sleeve (50).
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17. Illustration 38 g00674523
52. Remove seal (52).
53. Remove two seals (53).
54. Remove retaining ring (54).
Illustration 39 g00674524
55. Use a hammer and a punch in order to remove pin (55).
Illustration 40 g00674721
56. Use Tooling (F) in order to remove ring carrier (56).
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18. Illustration 41 g00674722
57. Use Tooling (G) in order to remove bearing (57).
Illustration 42 g00674723
58. Remove bearing (58).
59. Remove the plate and the ring below bearing (58).
Illustration 43 g00674725
60. Use appropriate equipment to turn the housing onto the opposite side.
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19. 61. Remove O-ring seal (59) and two plugs (60).
Illustration 44 g00674726
62. Use suitable cribbing in order to support the turbine and hub assembly. Place the cribbing
inside the housing assembly.
63. Use Tooling (H) in order to remove the hub from bearing (61).
Illustration 45 g00674727
64. Remove bearing (61).
Illustration 46 g00674744
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20. Illustration 47 g00674747
65. Remove 24 bolts (62) and hub (63) from turbine (64).
66. Remove clutch adapter (65).
Illustration 48 g00674748
67. Remove retaining ring (66) and plate (67).
Illustration 49 g00674750
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21. Illustration 50 g00674788
68. Remove two wear plates (68) and two friction discs (69).
Illustration 51 g00674790
69. Remove piston (70).
Note: It may be necessary to use shop air under pressure of 621 kPa (90 psi) to remove
piston (70).
Illustration 52 g00674791
70. Remove seal (71) from piston (70).
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22. Note: The following steps are used for the removal and disassembly of the pump drives.
Illustration 53 g00674951
71. Remove seven bolts (72).
Illustration 54 g00674952
72. Install two forcing screws and Tooling (J).
73. Attach a suitable lifting device and lifting slings to Tooling (J).
74. Use the suitable lifting device in order to remove adapter (73). The weight of adapter (73) is
30 kg (65 lb).
Note: If necessary, use forcing screws to separate adapter (73) from the housing.
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23. Illustration 55 g00674953
75. Remove two O-ring seals (74) from adapter (73).
Illustration 56 g00674954
76. Remove race (75) and seal (76) from adapter (73).
Illustration 57 g00674955
77. Remove gear assembly (77).
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24. Illustration 58 g00674956
78. Use Tooling (F) in order to remove bearing (78) from gear assembly (77).
Illustration 59 g00674957
79. Remove retaining ring (79) and adapter (80) from gear assembly (77).
Illustration 60 g00674959
80. Remove retaining ring (81) from adapter (80). Remove plate (82).
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25. Illustration 61 g00674960
81. Use Tooling (F) in order to remove bearing (83) from gear assembly (77).
Illustration 62 g00674961
82. Remove shim pack (84) and race (85).
Illustration 63 g00674980
83. Remove three bolts (86) and cover (87).
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26. Illustration 64 g00674982
84. Remove O-ring seal (88) from cover (87).
Illustration 65 g00674983
85. Remove bolt (89) and the washer.
86. Remove idler gear shaft (90).
Illustration 66 g00674984
87. Remove idler gear assembly (91).
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27. Illustration 67 g00674986
88. Remove two bearings (92) and ring (93) from idler gear assembly (91).
Illustration 68 g00674987
89. Remove four bolts (94) and block (95).
Illustration 69 g00674989
90. Remove five O-rings (96) and three plugs (97).
91. Repeat steps 71 through 90 in order to remove the remaining pump adapter.
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28. Shutdown SIS
Previous Screen
Product: WHEEL LOADER
Model: 988K WHEEL LOADER TWX
Configuration: 988K Wheel Loader TWX00001-UP (MACHINE) POWERED BY C18 Engine
Disassembly and Assembly
836K Landfill Compactor, 834K Wheel Dozer and 988K Wheel Loader Power Train
Media Number -KENR6490-06 Publication Date -01/09/2015 Date Updated -05/12/2017
i02719081
Torque Converter (Lockup) - Assemble
SMCS - 3101-016-L7
Assembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A
138-7573 Link Bracket 1
138-7575 Link Bracket 2
B 1P-0520 Driver Gp 1
C 188-1456 Metric Eyebolt 1
D 138-7575 Link Bracket 2
E 138-7575 Link Bracket 3
F
1P-0520 Driver Gp 1
8T-5096 Dial Indicator Gp 1
G 1P-1863 Retaining Ring Pliers 1
Note: Cleanliness is an important factor. Before assembly, all parts should be thoroughly cleaned
in cleaning fluid. Allow the parts to air dry. Wiping cloths or rags should not be used to dry parts.
Lint may be deposited on the parts which may cause later trouble. Inspect all parts. If any parts are
worn or damaged, use new parts for replacement.
Note: Apply oil to all of the bearings before assembly.
1. Check the condition of the O-ring seals that are used in the torque converter and torque
converter housing. If any of the seals are damaged, use new parts for replacement.
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29. Illustration 1 g00674989
2. Install five O-ring seals (96) and three plugs (97).
Illustration 2 g00674987
3. Install block (95) and four bolts (94).
Illustration 3 g00674986
4. Install ring (93) and two bearings (92) to idler gear assembly (91).
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30. Illustration 4 g00675821
5. Install idler gear assembly (91).
Illustration 5 g00675822
6. Install idler gear shaft (90).
7. Install bolt (89) and the washer.
Illustration 6 g00674982
8. Install O-ring seal (88) to cover (87).
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31. 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
32. Illustration 7 g00675823
9. Install three bolts (86) and cover 87.
Illustration 8 g00675717
10. Use the proper equipment in order to handle bearing cup (85).
11. Lower the temperature of bearing cup (85).
12. Install bearing cup (85) into the housing.
Illustration 9 g00675718
13. Use the proper equipment to handle bearing (83).
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