Final Drive, Brake and Wheel
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| Illustration 1 | g02746959 |
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| Illustration 2 | g02746961 |
Section A-A | |
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| Specifications for 321-6787 Final Drive, Brake, and Wheel Gp | |||
| Item | Qty | Part | Specification Description |
| 1 | 15 | 2H-3856 Bolt | Install bolts and tighten to 250 ± 25 N·m (184 ± 18.4 lb ft). Loosen every other bolt and retighten to 400 ± 50 N·m (295 ± 37 lb ft) plus and additional 60 ± 6 degrees rotation. Loosen the remaining bolts and retighten to 400 ± 50 N·m (295 ± 37 lb ft) plus and additional 60 ± 6 degrees rotation. |
| 2 | 1 | 4H-6730 O-Ring Seal | Lubricate the shaft lightly with the lubricant that is being sealed. |
| 3 | 1 | 297-9546 Duo-Cone Seal Gp | Rubber toric rings and all surfaces contacting the rings must be clean and dry at assembly. Apply a thin film of oil to contacting surfaces of the metal seals prior to assembly. Seal rings must be assembled square with the bore and toric must not be bulged or twisted. |
| 4 | 1 | 314-4130 Duo-Cone Seal Gp | Rubber toric rings and all surfaces contacting the rings must be clean and dry at assembly. Apply a thin film of oil to contacting surfaces of the metal seals prior to assembly. Seal rings must be assembled square with the bore and toric must not be bulged or twisted. |
| 5 | 1 | 8X-8439 Shim Pack | Total thickness of shim pack is 3.9 mm (0.153 inch) One 0.8 mm (0.0315 inch) thick shim Seven 0.05 mm (0.00197 inch) thick shims 11 0.25 mm (0.00984 inch) thick shims |
| 6 | 1 | 137-4349 O-Ring Seal | Lubricate the shaft lightly with the lubricant that is being sealed. |
| 7 | 68 | 2J-3505 Full Nut | Torque to 880 ± 80 N·m (650 ± 60 lb ft) |
| 8 | - | - | Dimension 242.03 ± 0.08 mm (9.5287 ± 0.00315 inch) Use shims (11), shims (12), and shims (13) to obtain dimension |
| 9 | 1 | 5T-8041 Adapter | Seal threads with 154-9731 Thread Lock Compound Torque to 55 ± 7 N·m (40.5 ± 5 lb ft) |
| 10 | 1 | 205-9874 Speed Sensor Gp | Seal threads with 5P-3413 Pipe Sealant Torque to 30 ± 4 N·m (265 ± 35 lb in) |
| 11 | 2 | 5T-8042 Shim | Shim thickness 0.16 mm (0.00630 inch) Use as required to obtain dimension (8) |
| 12 | 3 | 5T-8168 Shim | Shim thickness 0.05 mm (0.00197 inch) Use as required to obtain dimension (8) |
| 13 | 2 | 5T-8169 Shim | Shim thickness 0.8 mm (0.03150 inch) Use as required to obtain dimension (8) |
Caterpillar Information System:
420F, 428F, 430F, 432F, 434F and 444F Backhoe Loaders MID 039 - CID 0637 - FMI 06
420F, 428F, 430F, 432F, 434F and 444F Backhoe Loaders MID 039 - CID 0629 - FMI 04
420F, 428F, 430F, 432F, 434F and 444F Backhoe Loaders MID 039 - CID 0626 - FMI 02
2011/11/16 A New Horn Relay Is Now Used On Certain Off-Highway Truck/Tractor {1408, 7301}
420F, 428F, 430F, 432F, 434F and 444F Backhoe Loaders MID 039 - CID 0600 - FMI 04
420F, 428F, 430F, 432F, 434F and 444F Backhoe Loaders MID 039 - CID 0600 - FMI 03
420F, 428F, 430F, 432F, 434F and 444F Backhoe Loaders MID 039 - CID 0597 - FMI 08
420F, 428F, 430F, 432F, 434F and 444F Backhoe Loaders MID 039 - CID 0597 - FMI 04
C27 and C32 Engines for Caterpillar Built Machines Gear Group (Front) - Remove and Install
793F Series AC Off-Highway Truck Chassis Electronic Control System MID 087 - CID 3050 - FMI 14
793F Series AC Off-Highway Truck Chassis Electronic Control System MID 087 - CID 3050 - FMI 09
789D and 789D XQ Off-Highway Truck Power Train Rear Axle Housing - Support Group
2011/11/01 An Improved Torque Converter Output Shaft Bearing is Now Used on Certain CAT Products {3101, 3127, 7551}
R2900G Load Haul Dump Articulation Chassis Cable - Inspect/Replace
R3000H Load Haul Dump Automatic Lubrication Filler Filter - Clean - If Equipped
R3000H Load Haul Dump Automatic Lubrication Grease Tank - Fill - If Equipped
R1300G Load Haul Dump Articulation Chassis Cable - Inspect/Replace
R3000H Load Haul Dump Backup Alarm - Test
R3000H Load Haul Dump Battery Electrolyte Level - Check
R3000H Load Haul Dump Brake Accumulator - Check
R3000H Load Haul Dump Brake Discs - Check
R3000H Load Haul Dump Brake Release System - Test - If Equipped
R3000H Load Haul Dump Braking System - Test
R3000H Load Haul Dump Bucket Pivot Bearings - Lubricate