2. Shutdown SIS
Previous Screen
Product: ARTICULATED TRUCK
Model: 725C ARTICULATED TRUCK LFB
Configuration: 725C Articulated Truck LFB00001-UP (MACHINE) POWERED BY C9.3 Engine
Disassembly and Assembly
725C Articulated Truck Power Train
Media Number -UENR2383-01 Publication Date -01/10/2014 Date Updated -20/03/2018
i05848286
Torque Converter - Disassemble
SMCS - 3101-015
Disassembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 439-3939 Link Bracket 3
B - M12 Guide Stud 3
C 1P-0510 Driver Gp 1
D 8T-4182 Bolt 2
E 1P-1863 Retaining Ring Pliers 1
F 8B-7551 Bearing Puller Gp 1
Start By:
a. Separate the torque converter housing from the planetary transmission.
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.
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3. Approximate weights of the components are shown. Clean all surfaces
where parts are to be installed.
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, "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.
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
Illustration 1 g01320995
1. Remove bolts (1) and allen head screws (2) that secure the retarder in position.
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4. Illustration 2 g03696394
2. Use Tooling (A) and a suitable lifting device to remove retarder (3) from the center shaft of
the torque converter. The weight of retarder (3) is approximately 48 kg (105 lb).
Illustration 3 g01321003
3. Remove allen head screws (4) and the washers from the torque converter housing.
Illustration 4 g03696397
4. Remove bolts (6) from torque converter housing (5) in order to release the separator plate.
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5. 5. Attach Tooling (A) and a suitable lifting device to the carrier assembly. Install Tooling (B)
to the torque converter housing (5).
6. Use Tooling (A) and the suitable lifting device to raise torque converter housing (5)
approximately 5.00 mm (0.197 inch) from the torque converter. The weight of torque
converter housing (5) is approximately 159 kg (350 lb).
Illustration 5 g01321010
Note: Insert a soft drift into Hole (X).
7. Use a hammer and a suitable soft drift to tap the separator plate from torque converter
housing (5). This will enable the separator plate to remain with the torque converter.
Illustration 6 g01321011
8. Remove separator plate (7) from the torque converter assembly. Remove Tooling (B) from
the carrier assembly.
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6. Illustration 7 g01321012
9. Remove O-ring seal (8) from the outside diameter of separator plate (7).
10. Use Tooling (C) to remove seal (9) from separator plate (7).
Illustration 8 g01321013
11. Remove bolts (10) that secure flywheel pilot (11).
Illustration 9 g01321014
12. Install Tooling (D) in order to remove flywheel pilot (11) and O-ring seal (12).
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7. Illustration 10 g01321015
13. Remove bolts (13), retainer (14), and washer (15).
Illustration 11 g01321016
14. Carefully remove center shaft (16) from the center of the carrier. Remove bearing half (17).
Illustration 12 g01321019
15. Remove rings (18) from center shaft (16).
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8. Illustration 13 g01321018
16. Remove race (19), bearing (20), and race (21) from center shaft (16).
Illustration 14 g01321020
17. Remove carrier assembly (22) from gear (23) and the torque converter assembly.
Illustration 15 g01321036
18. Use Tooling (E) to remove retaining ring (24) from the groove of carrier assembly (22).
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9. Illustration 16 g01321038
19. Remove O-ring seal (27) from carrier assembly (22).
20. Remove seal (26) from seal carrier (25), as shown.
Illustration 17 g01321039
21. Invert carrier assembly (22) and remove rings (28).
Illustration 18 g01321041
22. Use Tooling (C), Tooling (F), and a suitable press in order to remove seal carrier (25) from
carrier assembly (22).
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10. Illustration 19 g01321043
23. Use Tooling (C), Tooling (F), and a suitable press to remove bearing (29) from carrier
assembly (22).
Illustration 20 g01321044
24. Remove retaining ring (30) and bearing race (31) from gear (32).
25. Remove bolts (33) in order to separate torque converter impeller (34) from the stator and the
turbine assembly.
Illustration 21 g01321047
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11. 26. Remove allen head screws (35) in order to separate the hub (36) and the gear from the
torque converter impeller (34).
Illustration 22 g01321050
27. Remove torque converter impeller (34) from gear (23). Remove the O-ring seal from torque
converter impeller (34).
Illustration 23 g01321051
28. Remove O-ring seal (37) from gear (23).
Illustration 24 g01321053
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12. 29. Remove retainer (38), race (39), and bearing (40) from stator (41).
Illustration 25 g01321055
30. Remove stator (41) from turbine (42).
Illustration 26 g01321058
31. Remove bearing (43), race (44), and retainer (45) from turbine (42).
Illustration 27 g01321062
32. Tap on hub (46) in order to separate bearing cup half (47) from the hub. This will allow the
coupling and the turbine to be removed from the housing.
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13. Illustration 28 g01321066
33. Remove coupling (48) and turbine (42) from housings (49) and (50).
Illustration 29 g01321067
34. Remove retaining ring (51), ring (52), and bearing half (53) from turbine (42).
Illustration 30 g01321069
35. Remove allen head screws (54) in order to separate coupling (48) from turbine (42).
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14. Illustration 31 g01321070
36. Remove bolts (55) and the washers that secure the flange of housing (50) to housing (49).
Illustration 32 g01321071
37. Separate housing (50) from housing (49).
Illustration 33 g01321073
38. Remove O-ring seal (56) from the groove of housing (50).
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15. Illustration 34 g01321074
39. Remove friction disc (57) from housing (49).
Illustration 35 g01321075
40. Remove piston (58) from housing (49).
Illustration 36 g01321076
41. Remove seal (59) from the groove of piston (58).
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16. Illustration 37 g01321078
42. Remove seal (60) from the groove of housing (49).
Illustration 38 g03696598
Note: Performing the following procedure will destroy bearing (61). This is performed in
order to replace bearing (61).
43. Use a hammer and a soft drift to remove bearing (61).
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Fri Jan 31 14:03:49 UTC+0800 2020
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17. Shutdown SIS
Previous Screen
Product: ARTICULATED TRUCK
Model: 725C ARTICULATED TRUCK LFB
Configuration: 725C Articulated Truck LFB00001-UP (MACHINE) POWERED BY C9.3 Engine
Disassembly and Assembly
725C Articulated Truck Power Train
Media Number -UENR2383-01 Publication Date -01/10/2014 Date Updated -20/03/2018
i05848366
Torque Converter - Assemble
SMCS - 3101-016
Assembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 439-3939 Link Bracket 3
B M-12 Guide Stud 3
C 1P-0510 Driver Gp 1
E 1P-1863 Retaining Ring Pliers 1
G 1P-1861 Retaining Ring Pliers 1
H 217-9911 Seal Guide 1
J 369-9451 O-Ring Assembly Compound 1
K - Loctite 536 -
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.
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18. Approximate weights of the components are shown. Clean all surfaces
where parts are to be installed.
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, "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.
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: Apply a light film of transmission oil to all components before assembly.
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19. Illustration 1 g03696620
1. Install new bearing (61).
Illustration 2 g01321078
2. Invert the housing and install seal (60) into the groove of housing (49).
Note: Size the seal by holding a round object against the seal. Rotate the round object
around the seal, until the seal is flush with the outer diameter of the groove. Take care not to
damage the seal.
Illustration 3 g01321076
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20. Thank you very much for
your reading. Please Click
Here. Then Get COMPLETE
MANUAL. NO WAITING
NOTE:
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click on the link above,
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click on it.
21. 3. Install seal (59) into the groove of piston (58).
Note: Size the seal by holding a round object against the seal. Rotate the round object
around the seal, until the seal is flush with the outer diameter of the groove. Take care not to
damage the seal.
Illustration 4 g01321075
Note: Prior to the installation of piston (58), lubricate the seal lightly with the lubricant that
is being sealed.
4. Install piston (58) into housing (49).
Illustration 5 g01321074
5. Place friction disc (57) in position on the piston in housing (49).
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22. Illustration 6 g01321073
6. Install O-ring seal (56) into the groove of housing (50).
Illustration 7 g01321071
Note: Prior to the installation of housing (50), lubricate the O-ring seal lightly with the
lubricant that is being sealed.
7. Place housing (50) in position on housing (49). Ensure that the bolt holes are aligned.
Illustration 8 g01321070
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23. 8. Install the washers and bolts (55) in order to secure the flange of housing (50) to housing
(49). Tighten bolts (55) to a torque of 60 ± 7 N·m (44 ± 5 lb ft).
Illustration 9 g01321069
9. Position coupling (48) on turbine (42). Install allen head screws (54). Tighten allen head
screws (54) to a torque of 60 ± 7 N·m (44 ± 5 lb ft).
Illustration 10 g01321067
10. Raise the temperature of bearing half (53). Install bearing half (53), ring (52), and retaining
ring (51) onto turbine (42).
Illustration 11 g01321066
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