BAR 3P3955 - Caterpillar

Illustration 6 g03801398
Illustration 7 g03801416
Rotate the axle housing assembly. Use Tooling (E) to tighten bearing nut (11). Install Tooling (H) on the axle housing. Place a torque wrench on the bolt at the center of Tooling (H). The torque wrench reading is equal to the seal drag torque plus the axle bearing preload rolling torque. Use the seal drag torque that was recorded in Step 10.Note: The preload rolling torque for new bearings is 9 to 16 N m (7 to 12 lb ft). The preload rolling torque for used bearings is 4.5 to 8 N m (3.5 to 6 lb ft).
Illustration 8 g03801399
Illustration 9 g03801400
Use the torque wrench to rotate the axle housing assembly. Use Tooling (E) to tighten nut (11). The torque wrench reading must equal the axle bearing preload rolling torque plus the actual seal drag torque. Use the seal drag torque that was recorded in Step 10. Use the following formula to calculate the required torque wrench reading. This formula is used to measure torque at the bolt circle.Actual Torque= C x (A + B) / B"C" is the torque wrench reading in newton meters (N m)."B" is the length of the torque wrench in meters."A" is the bolt circle radius of axle housing assembly (2) in meters. This equals 0.229 m (9.0160 inch)."SDT" is the actual seal drag torque in newton meters (N m)."T" is the axle bearing preload rolling torque. The preload rolling torque for new bearings is 9 to 16 N m (7 to 12 lb ft). The preload rolling torque for used bearings is 4.5 to 8 N m (3.5 to 6 lb ft).
The axle shaft should have zero end play. If the axle bearing preload rolling torque exceeds the specification, back off bearing nut (11) by 1/8 turn and reseat bearing cone (12) against bearing nut (11). Perform Step 11 again.
The following steps are for the assembly of planetary carrier assembly (5):
Illustration 10 g00450743
Install retaining ring (3) in the carrier.
Illustration 11 g01159054
Apply a thin coat of clean SAE 30 oil on all parts of planetary carrier assembly (5).
Install bearing (10) in planetary gear (9).
Install thrust washers (8) and planetary gear (9) in planetary carrier assembly (5).
Illustration 12 g00450669
Illustration 13 g01159052
Install shaft (7) in the carrier. Make sure that the spring pin hole in the shaft is aligned with the spring pin hole in the carrier. Install a new spring pin (6) through the carrier and in shaft (7). Install spring pin (6) slightly below the outside surface of the carrier.
Repeat Steps 13.a through 13.e for the remaining two planetary gears.
Illustration 14 g01159051
Use Tooling (D) and a suitable lifting device to position planetary carrier assembly (5) into the axle housing assembly. The weight of planetary carrier assembly (5) is approximately 80 kg (175 lb).
Use Tooling (C) to install retaining ring (3) on axle shaft (4).
Illustration 15 g01159049
Remove axle housing assembly (2) from Tooling (B). Install the other half of the axle housing assembly on Tooling (B) in a vertical position.
Apply Tooling (J) on the mating surfaces of axle housing assembly