Usage:
Start By:
a. remove left side axle housing only *
*See Disassemble Rear Axle group.
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 differential case (1) from the axle housing with a hoist. Weight is 36 kg (80 lb).
2. Remove retainer ring (2), and remove differential lock group (3).
3. Separate washer (5), coupling (7), spring (4) and adapter (6) to disconnect differential lock group.
4. Use Tooling (A) to remove large bearing cone (8) from the differential case.
5. Remove small bearing cone (9) from the differential case with Tooling (B).
6. Put identification (location marks) on the differential case halves.
7. Remove bolts (10) to separate the differential case halves.
8. Remove bushing (11) from the differential case halve.
9. Remove gear assembly (12). Remove washer (13) from the gear assembly. Remove spider assembly (14) from the differential case half.
10. Remove washers (16) and gears (15) from the spider assembly.
11. Remove gear (17) and washer (18). Remove bushing (19) from the differential case half.
12. If ring gear (21) is to be removed, follow the steps below:
a. Center punch either end of retaining rivets (20). Be sure the hole is punched as near to the center of the rivets as possible.
b. Use a 12.7 mm (.50 in) drill, and drill in the rivet until the head end breaks free from the rivet shank.
c. Use a suitable punch, and punch out the remainder of the rivets.
Assemble Differential (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. If a new ring gear (4) is installed, fasten the new ring gear on the differential case half with replacement bolts and nuts. Tighten the nuts to a torque of 105 ± 20 N·m (77.0 ± 15.0 lb ft).
2. Install bushing (2) in the differential case half. Install thrust washer (3) with the groove side up. Install side gear (1).
3. Install gears (5) and washers (6) on the spider.
4. Install spider assembly (9) in the differential case half.
5. Install side gear (8). Install thrust washer (7) on the side gear with the groove side up.
6. Install bushing (10) in the differential case half.
7. Fasten the differential case halves together with bolts (11). Tighten the bolts to a torque of 88 to 102 N·m (65 to 75 lb ft).
8. Heat small bearing (12) to a temperature of 135°C (275°F). Install the bearing as shown.
9. To assemble the differential lock group, put spring (15) in position on adapter (13). Install coupling (14) on spring (15). Install washer (16) on coupling (14).
10. Heat large bearing (18) to a temperature of 135°C (275°F). Install it on the differential case.
11. Install differential lock group (19) and retainer ring (17).
12. Put differential case assembly (20) in position in the axle housing with a hoist.
NOTE: Check the differential preload adjustment. See Steps 13 through 17 in topic Assemble Rear Axle Housings.
End By:
a. install left side axle housing only *
*See Assemble Rear Axle Housings.