784C, 785C and 785C HAA Off-Highway Truck/Tractors Power Train Caterpillar


Differential and Bevel Gear

Usage:

785C 1HW
Note: Refer to Testing and Adjusting, "Differential and Bevel Gear - Adjust" for the correct adjustment procedures for the differential and bevel gear.


Illustration 1g00904440

(A) Adjust the shroud to the proper clearance. ... 1.0 + 2.0 - 0.5 mm (0.04 + 0.08 - 0.02 inch)

Note: Tractors do not have a shroud.

(2) Torque for 24 studs ... 170 ± 30 N·m (125 ± 22 lb ft)

(3) Torque for 24 nuts ... 430 ± 60 N·m (317 ± 44 lb ft)

(4) Torque for 26 nuts ... 430 ± 60 N·m (317 ± 44 lb ft)

(5) Torque for 16 nuts ... 440 ± 40 N·m (325 ± 30 lb ft)

(6) Install the two pins above the bore. ... 7.6 ± 0.5 mm (0.30 ± 0.02 inch)

(7) 9M-5874 Shim Pack

Quantity ... As required
Shim Pack thickness ... 0.130 mm (0.005 inch)

Note: Refer to Testing and Adjusting, "Differential and Bevel Gear - Adjust" before shims (7) are installed.

(8) Final torque for 18 bolts ... 50 ± 5 N·m (37 ± 4 lb ft)

Note: Bolts (8) must be turned 60 degrees past the final torque.

(9) Lubricate the sealing lip with a small amount of the lubricant that is being sealed.

(10) Lubricate the bore with a small amount of the lubricant that is being sealed.

(11) 125-8649 Shim

Quantity ... 10
Thickness ... 0.12 mm (0.005 inch)

125-8650 Shim

Quantity ... 10
Thickness ... 0.18 mm (0.007 inch)



Illustration 2g00904496

View A-A

(12) Torque for four bolts ... 1300 ± 150 N·m (959 ± 111 lb ft)




Illustration 3g00904480

View B-B




Illustration 4g00904481

View C-C

(13) Apply 155-0695 Thread Lock Compound to the threads of the bolts before installation.

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