Caterpillar Cat D6T TRACK-TYPE TRACTOR (Prefix JWD) Service Repair Manual Instant Download.pdf

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Product: TRACK-TYPE TRACTOR
Model: D6T TRACK-TYPE TRACTOR JWD
Configuration: D6T TRACK-TYPE TRACTOR XL PAT, XW PAT, LGP PAT Differential Steering JWD00001-UP (MACHINE) POWERED BY C9 Engine
Disassembly and Assembly
D6T Track-Type Tractor Power Train
Media Number -KENR5126-07 Publication Date -01/01/2013 Date Updated -25/07/2018
i04905904
Steering Planetary and Brake - Disassemble
SMCS - 4132-015
Disassembly Procedure
Table 1
Required Tools
Tool Part Number Description Qty
A 138-7575 Link Bracket 3
B 1P-0520 Driver Group 1
C 5B-4274 Forcing Bolt 3/8 - 16 by 3.5 inches 3
Start By:
A. Remove the right hand final drive, the planetary group, and the brake. Refer to Disassembly and
Assembly, "Final Drive, Steering Planetary, and Brake (Right Side) - Remove".
Illustration 1 g00622108
1. Position the final drive, the planetary group, and the brake, as shown.
2. Remove the bolts that hold the planetary group and brake (1) to final drive (2). The bolts are on the
bottom (not shown).
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3. Attach Tooling (A) and a suitable lifting device to the planetary group and brake.
4. Install Tooling (C) in the final drive hub.
5. Tighten the forcing screws evenly in order to remove the planetary group and brake (1) from final drive
(2). The weight of planetary group and brake (1) is approximately 136 kg (300 lb).
Personal injury can result from parts and/or covers under spring
pressure.
Spring force will be released when covers are removed.
Be prepared to hold spring loaded covers as the bolts are loosened.
6. Remove bolts (3). Remove ring gear (4) from housing (5) .
7. Remove friction discs (6) and the brake plates from the housing.
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8. Remove bolts (7) and plate (8) .
9. Position the housing on suitable blocks (11) .
Note: Do not allow planetary carrier (10) to fall when the carrier is pressed from housing (5) .
Note: If a shim pack is present between the plate (8) and planetary carrier (10). Reuse the same shim pack
during assembly only if reusing the same planetary carrier (10). If a new planetary carrier (10) is being
used the shim pack should be discarded.
10. Use Tooling (B) and a suitable press to remove planetary carrier (10) from housing (5) .
11. Remove bearing cone (9) from the housing.
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12. Remove ring (14) from planetary carrier (10). Remove bolts (13). Remove slinger (12) from the planetary
carrier.
NOTICE
The component is destroyed if the component is removed.
13. If necessary, remove bearing cone (15) from planetary carrier (10) .
14. Use a hammer and a punch to push pin (17) in shaft (16) .
15. Remove shaft (16), planetary gear (19), discs (20), and bearings (21) from planetary carrier (10) .
16. Remove pin (17) from shaft (16) .
17. Repeat Steps 14 through 16 for the remaining planetary gears.
18. Remove sun gear (18) from planetary carrier (10) .
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Personal injury can result from parts and/or covers under spring
pressure.
Spring force will be released when covers are removed.
Be prepared to hold spring loaded covers as the bolts are loosened.
19. Remove bolts (22) and washers.
20. Remove retainer (23) from piston (24) .
21. If necessary, remove bearing cups (25) and seal ring (26) from retainer (23) .
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22. Remove piston (24) and O-ring seal (27) from the housing.
23. Remove seal ring (28) from piston (24) .
Note: Inspect the O-ring seals. If necessary, replace the O-ring seals.
24. Remove spring (29) and ring (30) from housing (5) .
Copyright 1993 - 2021 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Wed Apr 28 17:49:47 UTC+0800 2021
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i07321002
Steering Planetary and Brake - Assemble
SMCS - 4132-016
Assembly Procedure
Table 1
Required Tools
Tool Part Number Description Qty
A 138-7575 Link Bracket 3
D 6V-6640 Sealant 1
Reference: Refer to Specifications, "Brake and Planetary"
in the Service Manual for your machine.
Note: Orient the disc spring with the outer edge downward.
1. Install ring (30) and spring (29) in housing (5).
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2. Apply clean oil to seal ring (28).
Note: Orient the seal ring with the lip downward. Refer to Illustration 2.
3. Install seal ring (28) in piston (24).
4. Install piston (24) and O-ring seal (27) in the housing.
5. Lower the temperature of bearing cups (25). Install bearing cups (25) in retainer (23).
Note: Orient the seal ring with the lip downward. Refer to Illustration 4.
6. Apply clean oil to seal ring (26). Install seal ring (26) in retainer (23).
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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.
7. Install retainer (23) on piston (24). Align the oil passage in retainer (23) with the oil passage and the O-
ring seal in the housing. Install bolts (22).
8. Install sun gear (18) in planetary carrier (10).
9. Install bearings (21) in planetary gear (19).
10. Install discs (20) and planetary gear (19) in planetary carrier (10). Install shaft (16).
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Note: If the rubber in pin (17) is damaged, replace pin (17).
11. Align the hole in shaft (16) with the hole in planetary carrier (10) and install pin (17). Install pin (17) until
the pin is even with the surface of planetary carrier (10).
12. Repeat Steps 9 through 11 for the remaining planetary gears.
Note: If bearing cone (15) was removed from planetary carrier (10), a new bearing must be installed.
13. Raise the temperature of bearing cone (15). Install the bearing cone on planetary carrier (10).
14. Apply Tooling (D) to the flange of slinger (12).
15. Install slinger (12) on planetary carrier (10). Install bolts (13) and tighten to a torque of 25 ± 6 N·m
(221 ± 53 lb in).
16. Install ring (14) in planetary carrier (10).
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17. Position housing (5) on planetary carrier (10).
Note: Install shim pack between plate and planetary carrier (10) , only if there was a shim pack originally
installed in the differential group and if the same planetary carrier (10) is being reused. shim pack
thickness should be 0.31 mm (0.0122 inch).
18. Raise the temperature of bearing cone (9). Install bearing cone (9) on planetary carrier (10).
19. Position plate (8) on the planetary carrier.
20. Install bolts (7).
21. Install friction discs (6) and brake plates. Alternate the friction discs and the brake plates.
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22. Position ring gear (4) on housing (5).
23. Install bolts (3). Tighten the bolts to a torque of 135 ± 20 N·m (100 ± 15 lb ft).
24. Use a suitable lifting device and Tooling (A) to position the planetary group and brake (1) on final drive
(2). The weight of the planetary group and brake is approximately 135 kg (300 lb).
25. Install the bolts that hold the planetary group and brake on the final drive.
End By:
a. Install the right-hand final drive, the planetary group, and the brake. Refer to Disassembly and Assembly,
"Final Drive, Steering Planetary, and Brake (Right Side) - Install"
.
Wed Apr 28 17:50:46 UTC+0800 2021
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i02616812
Final Drive, Steering Planetary, and Brake (Right Side) - Install
SMCS - 4050-012-RI; 4132-012-RI
Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 8T-3207 Lift Bracket 1
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1. Install Tooling (A). Adjust Tooling (A) so the hook is 76 mm (3.0 inch) from the end of the bracket.
Install the final drive, the steering clutch, and brake (3). The weight of the final drive, the steering clutch,
and brake (3) is approximately 590 kg (1300 lb).
2. Install bolts (2). Tighten bolts (2) to a torque of 800 ± 90 N·m (590 ± 66 lb ft). Install bolts (1).
3. Remove Tooling (A). Install two sprocket segment bolts.
End By:
a. Install the axle. Refer to Disassembly and Assembly, "Axle - Remove and Install".
b. Connect the track. Refer to Disassembly and Assembly, "Track - Connect".
Wed Apr 28 17:51:46 UTC+0800 2021
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i02616829
Final Drive - Remove
SMCS - 4050-011
Removal Procedure
Table 1
Required Tools
A FT-1952 Axle Removal Tool 1
B
8T-3207 Lifting Bracket 1
5P-8622 Shackle 1
2D-4593 5/8 - 11 by 5 1/2 inch 2
1B-4331 5/8 - 11 inch 2
2S-5658 Washer 4
Start By:
a. Separate the track. Refer to Disassembly and Assembly, "Track - Separate".
Note: The planetary carriers of the final drives can be removed directly from the machine. Refer to Disassembly
and Assembly, "Final Drive Planetary Carrier (In Chassis) - Remove".
Without the sun gear in place, the brakes are ineffective. Personal
injury or death could result. Provide other means to hold or stop the
machine.
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.
1. Remove bolts (2) and cover (3) from final drive (1).
2. Use Tooling (A) to remove axle (4).
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3. Remove two bolts (5).
4. Adjust the top bracket of Tooling (B) until Dimension (X) is 222.25 mm (8.750 inch).
5. Remove two bolts (6) from the sprocket segment.
6. Fasten Tooling (B) and a suitable lifting device to the final drive.
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7. Remove bolts (7) that hold the final drive and the brake together.
8. Use Tooling (B) to remove final drive (1) from the machine. The weight of final drive (1) is
approximately 454 kg (1000 lb).
Wed Apr 28 17:52:45 UTC+0800 2021
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i05236991
Final Drive - Disassemble
SMCS - 4050-015
Disassembly Procedure
Table 1
Required Tools
A
138-7573 Link Bracket 3
1A-2029 Bolt 1
B 1P-510 Driver Group 1
C
FT-1934 Beam 1
6V-3160 Double Acting Cylinder 1
6V-9061 Pump Group 1
1D-4621 Bolt 4
D
2A-1538 Bolt 2
Start By:
A. Remove the final drives. Refer to Disassembly and Assembly, "Final Drive - Remove" for the correct
procedure.
Note: Cleanliness is an important factor. Before the disassembly procedure, the exterior of the component
should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism.
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1. Install Tooling (A) and a suitable lifting device to planetary carrier (3) .
2. Remove bolts (1). Remove planetary carrier (3) and the two O-ring seals from the hub. The weight of
planetary carrier (3) is approximately 137 kg (302 lb).
3. Remove retainers (2) .
4. Place support under planetary carrier (3) in order to prevent damage. Use Tooling (B) and a suitable press
to remove the planetary gear shafts.
5. Remove planetary gears (4) from planetary carrier (3) .
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6. Remove bearing cones (5) from gears (4) .
7. Remove the bearing cups from each side of the gears.
8. Remove bolts (6) and retainer (7) .
9. Attach a suitable lifting device to hub (12) and ring gear (8). The weight of hub (12) and ring gear (8) is
approximately 68 kg (150 lb). Remove hub (12) and ring gear (8) .
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10. Turn over hub (9) and ring gear (8). Remove retaining ring (10). Attach a suitable lifting device to hub
(9). The weight of hub (9) is approximately 37 kg (82 lb). The weight of ring gear (8) is approximately 32
kg (71 lb). Remove hub (9) .
11. Install Tooling (C) on hub (12).
Note: Do not lift hub (12) too high. Do not allow hub (12) to contact the fitting on the hydraulic cylinder.
12. Use Tooling (C) to loosen hub (12) from spindle (13). Remove Tooling (C) .
13. Remove bearing cone (11) .
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14. Install Tooling (D) and a suitable lifting device to hub (12). Remove hub (12) from spindle (13). The
weight of hub (12) is approximately 180 kg (397 lb).
15. Turn over hub (12). Remove Duo-Cone seal kit (15). Use a hammer and a punch to remove bearing cup
(16) .
16. Turn over the hub. Remove bearing cup (14) from the hub.
Note: If the Duo-Cone seal will be reused, mark the seal kits for installation purposes.
Note: Bearing cone (18) may be damaged if the bearing cone is removed from spindle (13) .
17. Remove Duo-Cone seal (19) from spindle (13) .
18. If necessary, remove bearing cone (18) from the spindle.
19. Remove lip seal (17) from spindle (13) .
Wed Apr 28 17:53:44 UTC+0800 2021
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i06701251
Final Drive - Assemble
SMCS - 4050-016
Assembly Procedure
Table 1
Required Tools
A
1A-2029 Bolt 3
B 1P-0520 Driver Gp 1
D
2A-1538 Bolt 2
E 8M-9395 Installer 1
1. Apply clean oil to all the parts during assembly.
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2. Use Tooling (B) to install lip seal (17) in spindle (13) to a depth of (X) 9 ± 0.25 mm
(0.3543 ± 0.0098 inch). Put clean oil on the lip of the seal.
Note: Dimension (X) is measured from the face of the spindle to the top of the metal can of the lip seal in
the orientation shown.
Note: Do not apply excessive force to lip seal (17) during installation to avoid damaging the seal.
3. Raise the temperature of bearing cone (18) to a maximum temperature of 135 °C (275 °F). Install bearing
cone (18) on spindle (13).
Note: Before the installation of the Duo-Cone seal, refer to Disassembly and Assembly, "Duo-Cone
Floating Seals - Install" for the correct procedure.
4. Use Tooling (E) to install the Duo-Cone seal on spindle (13).
5. Lower the temperature of bearing cups (14) and (16). Install bearing cups (14) and (16) in hub (12).
6. Use Tooling (E) to install the Duo-Cone seal in hub (12).
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7. Install Tooling (D) on hub (12). Attach a suitable lifting device to Tooling (D). Carefully position hub
(12) on spindle (13).
8. Raise the temperature of bearing cone (11). Install bearing cone (11) on spindle (13).
9. Attach a suitable lifting device to hub (9) and position hub (9) in ring gear (8). Install retaining ring (10).
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10. Turn over the hub (9) and ring gear (8). Attach a suitable lifting device to hub (9) and the ring gear (8)
into position in hub (12).
11. Put retainer (7) into position. Install bolts (6) while the hub is slowly rotated. Tighten bolts (6) evenly to a
torque of 135 ± 15 N·m (100 ± 11 lb ft). The retainer must contact the end of spindle (13) after bolts (6)
have been tightened.
12. Lower the temperature of bearing cups (20) and (21). Install the bearing cups in three planetary gears (4).
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13. Position the planetary carrier in a press. The shaft (22) must be in position with proper support to be a
positive stop for the shaft.
NOTICE
The shaft must be correctly installed. If the shaft is incorrectly
installed, the bearing preload will be incorrect. This will result in
component damage.
14. Position planetary gear (4) in the planetary carrier.
15. Lower the temperature of shaft (22). Use a suitable press to install the shaft in the planetary carrier. After
the installation, the end of shaft (22) must be flush with the retainer of the planetary carrier. This will
provide the correct bearing preload. The gear must rotate by hand after installation. If the gear does not
rotate, the problem must be corrected. Repeat this procedure for all three shafts.
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16. Install three retainers (2) on shafts (22).
17. Install Tooling (A). Attach a suitable lifting device to Tooling (A). Install the two O-ring seals on the
planetary carrier. Align the drain hole in the planetary carrier with the drain hole in the hub.
18. Position the planetary carrier in the hub.
19. Install bolts (1) that hold planetary carrier (3) to the hub. Remove Tooling (A).
End By:
a. Install the final drives. Refer to Disassembly and Assembly, "Final Drive - Install" for the correct
procedure.
Wed Apr 28 17:54:43 UTC+0800 2021
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i03576221
Final Drive - Install
SMCS - 4050-012
Installation Procedure
Table 1
Required Tools
A FT-1952 Installer 1
B
8T-3207 Lifting Bracket 1
5P-8622 Shackle 1
1D-4593 5/8 - 11 by 5 1/2 bolt 2
4K-0367 5/8 - 11 by nut 2
5P-8248 Washer 4
1. Adjust the top bracket of Tooling (B) until Dimension (X) is 222.25 mm (8.750 inch). Attach Tooling (B)
to the final drive.
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Suggest:
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Please download this document
first, and then click the above link
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2. Use Tooling (B) to install final drive (1). The weight of final drive (1) is approximately 454 kg (1000 lb).
3. Install bolts (7) that hold the final drive and the steering clutch and brake together. Tighten bolts (7) to a
torque of 700 ± 90 N·m (516 ± 66 lb ft).
4. Remove Tooling (B) from the final drive.
2/4
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Caterpillar Cat D6T TRACK-TYPE TRACTOR (Prefix JWD) Service Repair Manual Instant Download.pdf

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Caterpillar Cat D6T TRACK-TYPE TRACTOR (Prefix JWD) Service Repair Manual Instant Download.pdf