D350E Series II and D400E Series II Articulated Trucks Power Train Differential and Bevel Gear Caterpillar

Rear Axles

159-8538 Differential and Bevel Gear

Illustration 1	g00915877

(1) Torque for the 13 bolts ... 60 ± 12 N·m (44.3 ± 8.9 lb ft)

(2) Lubricate the seals and the bores with the lubricant that is being sealed.

(3) Torque for the 4 bolts ... 530 ± 70 N·m (390.9 ± 51.6 lb ft)

(4) Torque for the 4 bolts ... 105 ± 20 N·m (77.4 ± 14.8 lb ft)

(5) Coat both sides of friction discs thoroughly. Use the lubricant to be used in the power train.

136-6324 Friction Disc

Quantity ... 8

Thickness ... 3.25 ± 0.08 mm (0.128 ± 0.003 inch)

(6) Assembled backlash ... 0.31 ± 0.11 mm (0.012 ± 0.004 inch)

(7) Tighten 30 bolts lightly in order to hold the gear to the housing. Allow the gear to cool. Once the gear has cooled to approximately 49 °C (120 °F) tighten the bolts to a torque of 70 ± 15 N·m (51 ± 11 lb ft). Recheck that the torque is 70 ± 15 N·m (51 ± 11 lb ft). Turn the bolts through an additional 60° ± 10°.

(8) 3S-1374 Springs

Quantity ... 3

Test force ... 100 ± 8 N (22.4 ± 1.8 lb)

Test length ... 36.6 mm (1.44 inch)

Free length ... 47 mm (1.84 inch)

Outside diameter ... 15 mm (0.56 inch)

(9) Torque for the 12 bolts ... 100 ± 20 N·m (73.8 ± 14.8 lb ft)

(10) 151-8274 Plate

Quantity ... 8

Thickness ... 1.90 ± 0.08 mm (0.075 ± 0.003 inch)

(11) 151-8275 Plate

Quantity ... 1

Thickness ... 5.00 ± 0.08 mm (0.1969 ± 0.0031 inch)

(12) Coat the surface of the bore in the retainer with 8C-8422 Sealant .

(13) When the preload is correct, lock the locknut in place with the four setscrews that are part of the locknut. Tighten the setscrews in a diagonal pattern to a torque of 6 ± 1 N·m (53 ± 9 lb in). Repeat the sequence until the torque is maintained.

Note: Do not apply any thread lock compound to the locknut as part of the assembly procedure.

159-8540 Differential and Bevel Gear

Illustration 2	g00916825

(1) Torque for the 13 bolts ... 60 ± 12 N·m (44.3 ± 8.9 lb ft)

(2) Torque for the 6 bolts ... 60 ± 12 N·m (44.3 ± 8.9 lb ft)

(3) Lubricate the seals and the bores with the lubricant that is being sealed.

(4) Torque for the 2 bolts ... 900 ± 100 N·m (663.8 ± 73.8 lb ft)

(5) Coat both sides of friction discs thoroughly. Use the lubricant to be used in the power train.

136-6325 Friction Disc

Quantity ... 6

Thickness ... 3.86 ± 0.08 mm (0.152 ± 0.003 inch)

(6) Torque for the 4 bolts ... 105 ± 20 N·m (77.4 ± 14.8 lb ft)

(7) Assembled backlash ... 0.31 ± 0.11 mm (0.012 ± 0.004 inch)

(8) Tighten 28 bolts lightly in order to hold the gear to the housing. Allow the gear to cool. Once the gear has cooled to approximately 49 °C (120 °F) tighten the bolts to a torque of 150 ± 15 N·m (110.6 ± 11.1 lb ft). Recheck that the torque is 150 ± 15 N·m (110.6 ± 11.1 lb ft). Turn the bolts through an additional 30° ± 5°.

(9) Torque for the 2 bolts ... 530 ± 70 N·m (390.9 ± 51.6 lb ft)

(10) 3S-1374 Springs

Quantity ... 3

Test force ... 100 ± 8 N (22.4 ± 1.8 lb)

Test length ... 36.6 mm (1.44 inch)

Free length ... 47 mm (1.84 inch)

Outside diameter ... 15 mm (0.56 inch)

(11) Torque for the 12 bolts ... 240 ± 40 N·m (177.0 ± 29.5 lb ft)

(12) 151-8397 Plate

Quantity ... 6

Thickness ... 3.0 mm (0.12 inch)

(13) 151-8281 Plate

Quantity ... 1

Thickness ... 6.00 ± 0.08 mm (0.236 ± 0.003 inch)

(14) Coat the surface of the bore in the retainer with 8C-8422 Sealant .

(15) When the preload is correct, lock the locknut in place with the four setscrews that are part of the locknut. Tighten the setscrews in a diagonal pattern to a torque of 6 ± 1 N·m (53 ± 9 lb in). Repeat the sequence until the torque is maintained.

Note: Do not apply any thread lock compound to the locknut as part of the assembly procedure.

Center Axles

188-1535 Differential and Bevel Gear

Illustration 3	g00916893

(1) Torque for the 6 bolts ... 60 ± 12 N·m (44.3 ± 8.9 lb ft)

(2) Torque for the 3 bolts ... 60 ± 12 N·m (44.3 ± 8.9 lb ft)

(3) Torque for the 4 bolts ... 105 ± 20 N·m (77.4 ± 14.8 lb ft)

(4) Torque for the 2 bolts ... 530 ± 70 N·m (390.9068 ± 51.6292 lb ft)

(5) Lubricate the seals and the bores with the lubricant that is being sealed.

(6) Coat both sides of friction discs thoroughly. Use the lubricant to be used in the power train.

(7) Assembled backlash ... 0.31 ± 0.11 mm (0.012 ± 0.004 inch)

(8) Tighten 30 bolts lightly in order to hold the gear to the housing. Allow the gear to cool. Once the gear has cooled to approximately 49 °C (120 °F) tighten the bolts to a torque of 70 ± 15 N·m (51.6 ± 11.1 lb ft). Recheck that the torque is 70 ± 15 N·m (51.6 ± 11.1 lb ft). Turn the bolts through an additional 60° ± 10°.

(9) Torque for the 4 bolts ... 60 ± 12 N·m (44.3 ± 8.9 lb ft)

(10) 3S-1374 Springs

Quantity ... 3

Test force ... 100 ± 8 N (22.4 ± 1.8 lb)

Test length ... 36.6 mm (1.44 inch)

Free length ... 47 mm (1.84 inch)

Outside diameter ... 15 mm (0.56 inch)

(11) Torque for the 12 bolts ... 100 ± 20 N·m (73.8 ± 14.8 lb ft)

(12) Coat the surface of the bore in the retainer with 8C-8422 Sealant .

(13) 151-8274 Plate

Quantity ... 8

Thickness ... 1.90 ± 0.08 mm (0.075 ± 0.003 inch)

(14) 151-8275 Plate

Quantity ... 1

Thickness ... 5.00 ± 0.08 mm (0.197 ± 0.003 inch)

(15) When the preload is correct, lock the locknut in place with the four setscrews that are part of the locknut. Tighten the setscrews in a diagonal pattern to a torque of 6 ± 1 N·m (53 ± 9 lb in).

188-1538 Differential and Bevel Gear

Illustration 4	g00919971

(1) Torque for the differential carrier ... 900 ± 100 N·m (663.8 ± 73.8 lb ft)

(2) Lubricate the seals and the bores with the lubricant that is being sealed.

(3) Torque for the 2 bolts ... 900 ± 100 N·m (663.8 ± 73.8 lb ft)

(4) Assembled backlash ... 0.30 ± 0.11 mm (0.012 ± 0.004 inch)

(5) Tighten 28 bolts lightly in order to hold the gear to the housing. Allow the gear to cool. Once the gear has cooled to approximately 49 °C (120 °F) tighten the bolts to a torque of 150 ± 15 N·m (110.6 ± 11.1 lb ft). Recheck that the torque is 150 ± 15 N·m (110.6 ± 11.1 lb ft). Turn the bolts through an additional 30° ± 5°.

(6) Torque for the 4 bolts ... 105 ± 20 N·m (77.4 ± 14.8 lb ft)

(7) Torque for the 2 bolts ... 530 ± 70 N·m (390.9 ± 51.6 lb ft)

(8) Coat both sides of friction discs thoroughly. Use the lubricant to be used in the power train.

136-6325 Friction Disc

Quantity ... 6

Thickness ... 3.86 ± 0.08 mm (0.152 ± 0.003 inch)

(9) 3S-1374 Springs

Quantity ... 3

Test force ... 100 ± 8 N (22.4 ± 1.8 lb)

Test length ... 36.6 mm (1.44 inch)

Free length ... 47 mm (1.84 inch)

Outside diameter ... 15 mm (0.56 inch)

(10) Coat the surface of the bore in the retainer with 8C-8422 Sealant .

(11) Apply 4C-4030 Thread Lock Compound to threads.

(12) 151-8282 Plate

Quantity ... 6

Thickness ... 1.90 ± 0.08 mm (0.075 ± 0.003 inch)

(13) Torque for the 12 bolts ... 240 ± 40 N·m (177.0 ± 29.5 lb ft)

(14) 151-8281 Plate

Quantity ... 1

Thickness ... 6.00 ± 0.08 mm (0.236 ± 0.003 inch)

Front Axles

159-8540 Differential and Bevel Gear

Illustration 5	g00917059

(1) Torque for the 19 bolts ... 60 ± 12 N·m (44.3 ± 8.9 lb ft)

(2) Lubricate the seals and the bores with the lubricant that is being sealed.

(3) Torque for the 2 bolts ... 900 ± 100 N·m (663.8 ± 73.8 lb ft)

(4) Coat both sides of friction discs thoroughly. Use the lubricant to be used in the power train.

136-6325 Friction Disc

Quantity ... 6

Thickness ... 3.86 ± 0.08 mm (0.152 ± 0.003 inch)

(5) Torque for the 2 bolts ... 530 ± 70 N·m (390.9068 ± 51.6292 lb ft)

(6) Torque for the 4 bolts ... 105 ± 20 N·m (77.4 ± 14.8 lb ft)

(7) Assembled backlash ... 0.30 ± 0.11 mm (0.012 ± 0.004 inch)

(8) Tighten 28 bolts lightly in order to hold the gear to the housing. Allow the gear to cool. Once the gear has cooled to approximately 49 °C (120 °F) tighten the bolts to a torque of 150 ± 15 N·m (110.6 ± 11.1 lb ft). Recheck that the torque is 150 ± 15 N·m (110.6 ± 11.1 lb ft). Turn the bolts through an additional 30° ± 5°.

(9) 3S-1374 Springs

Quantity ... 3

Test force ... 100 ± 8 N (22.4 ± 1.8 lb)

Test length ... 36.6 mm (1.44 inch)

Free length ... 47 mm (1.84 inch)

Outside diameter ... 15 mm (0.56 inch)

(11) Torque for the 12 bolts ... 240 ± 40 N·m (177.0 ± 29.5 lb ft)

(12) 151-8397 Plate

Quantity ... 6

Thickness ... 3.0 mm (0.12 inch)

(13) 151-8281 Plate

Quantity ... 1

Thickness ... 6.00 ± 0.08 mm (0.236 ± 0.003 inch)

(14) Coat the surface of the bore in the retainer with 8C-8422 Sealant .

(15) Apply 4C-4030 Thread Lock Compound to the threads.