Usage:
Fluid Spillage Containment
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the machine. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to "Tools And Shop Products Guide", NENG2500 for tools and supplies suitable to collect and contain fluids in Caterpillar machines. Dispose fluids according to local regulations and mandates.
1. Remove bolts (1) that hold the pinion assembly to the axle housing.
2. Use two of the original bolts to carefully force pinion assembly (2) from the axle housing.
3. Remove cotter pin (4), nut (6), the washer and seal. Remove yoke (3) and seal retainer (5).
4. Remove seal (7) from the retainer.
5. Remove bearing (9) and the spacer. Remove housing assembly (8) from the pinion assembly.
6. Remove seal (11) and bearing races (10) from the housing assembly.
7. Remove bearing (12) from the pinion with Tooling (A).
8. Remove retaining ring (13). Remove bearing (14) with Tooling (A).
Assemble Pinion Assembly (Rear)
Fluid Spillage Containment
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the machine. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to "Tools And Shop Products Guide", NENG2500 for tools and supplies suitable to collect and contain fluids in Caterpillar machines. Dispose fluids according to local regulations and mandates.
1. Heat bearing (2) to a temperature of 135°C (275°F). Install it on the pinion.
2. Install retainer ring (1).
3. Heat bearing (7) to a temperature of 135°C (275°F), and install it on the pinion. Install spacer (6).
4. Lower the temperature of bearing races (3), and install them in the housing assembly.
5. Install seal (4); then put housing assembly (5) in position on the pinion assembly.
6. Install bearing (8) in the housing assembly.
7. Install seal (9) in the retainer. The lip of the seal should be toward the bearings on the pinion.
8. Install seal retainer (14). Install yoke (13). Install seal (12), washer (11) and nut (10). Tighten the nut to a torque of 407 to 813 N·m (300 to 600 lb ft). At the same time, make sure a notch in the nut is in alignment with the hole in the pinion shaft.
9. Check the bearing preload with a 200 mm (7.8 in) long torque wrench and 1 3/4" socket. The preload should be 1.1 to 4.5 N·m (10 to 40 lb in). Install the pinion shaft and nut.
10. Install pinion assembly (15) in the axle housing. Install the bolts that hold it. Tighten the bolts to a torque of 108 to 136 N·m (80 to 100 lb ft).