785G Off-Highway Truck Systems Caterpillar


Final Drive

Usage:

785G RTL


Illustration 1g06209370

Table 1
Item  Qty  Part  Specification Description 
6H-1717 Bolt  Use the following procedure to tighten the bolts:
1. Bearing assembly parts are matched components and must not be mixed with other bearing assemblies.
2. Assemble snap ring and bearing cups into gear bore.
3. Assemble cones into 117-1005 Planetary Gear (11).
4. Assemble planetary gear (11) into 8W-3004 Inner Carrier As (15).
5. Press 7I-5540 Shaft (8) into place and ensure that all parts are aligned and that all bearing components are seated.
6. Planetary gear (11) must be rotated during pressing of shaft (8).
7. Measure the gap that exists between end of shaft (8) and inner carrier as (15).
8. Use 8W-6910 Shim Pack (9) equal to the measured gap 0.00 mm, -0.05 mm (0.000 inch, -0.002 inch).
9. Install shim pack (9), 8W-3088 Plate (6), and bolts.
10. Torque to 135 ± 15 N·m (100 ± 11 lb ft)
0S-1589 Bolt  Use the following procedure to tighten the bolts:
1. Assemble 436-2593 Roller Bearing (12) into 144-3366 Planetary Gear (1).
2. Assemble planetary gear (1) into 261-1688 Planetary Carrier (19).
3. Press 8X-6833 Planetary Shaft (2) into place being sure that all parts are aligned and bearings are seated.
4. Planetary gear (1) must be rotated during pressing of planetary shaft (2).
5. Measure gap that exists between end of planetary shaft (2) and planetary carrier (19).
6. Use 8X-6834 Shim Pack (10) equal to the measured gap 0.00 mm, -0.05 mm (0.000 inch, -0.002 inch).
7. Install shim packs (10), 8X-6829 Plate (7), and bolts.
8. Torque to 255 ± 15 N·m (188 ± 11 lb ft)
12  436-2593 Roller Bearing  Before assembly, apply red Loctite 263 to the roller bearing.
Torque to 125 ± 8 N·m (92 ± 6 lb ft)
13  4L-6454 Bolt  Before assembly, apply red Loctite 263 to the threads.
Torque to 34 ± 7 N·m (301 ± 62 lb in)
14  8T-4183 Bolt  Before assembly, apply red Loctite 263 to the threads.
Torque to 125 ± 8 N·m (92 ± 6 lb ft)
16  12  8T-4183 Bolt  Torque to 55 ± 10 N·m (41 ± 7 lb ft)
17  415-9463 Cover As  Before assembly, maintain the required dimension (B) of 27.8 ± 2.5 mm (1.10 ± 0.10 inch)
18  0S-1585 Bolt  Before assembly, apply red Loctite 263 to the threads.
Torque to 125 ± 8 N·m (92 ± 6 lb ft)

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