ALTERNATOR AR-CHARGING 2659736 - Caterpillar

8. Cut wire (18) from bolts (20). Remove bolts (20), then remove jaw (19). 9. Cut wire from bolt (23). Remove bolt and lock (24). Remove adjusting ring (25). Do the same for the rear adjusting ring. Remove bearing cap nuts (21) and bearing caps (22). 10. Remove two dowels (26) from bearing cages (27). 11. Fasten a hoist to the differential and ring gear unit and remove it from housing. Weight of the differential and ring gear unit is 270 lb. (122 kg). 12. Put the differential and ring gear on blocks with the ring gear teeth down. Remove bearing cages (29) and bearing cups (28). 13. Carrier bearing (30) will be damaged if removed. Use tooling (C) if bearing has to be removed. Illustration A19429X1 shows bearing not removed. Illustration A19428X1 only shows tooling needed if bearing cone has to be removed. 14. Remove differential case nuts (31). 15. Fasten a hoist and remove half of differential, case and ring gear. Weight is 135 lb. (61.2 kg). 16. Remove nuts (32) and make a separation between ring gear and differential case half. 17. Remove thrust plate (33) and side gear (34). 18. Remove differential pinion gears as an assembly. 19. Remove pinion gears, washers and bearings from spider. 20. Remove side gear (34) from housing. 21. Remove thrust plate (35) from housing. 22. Remove bearing cone (36) from differential case with tooling (D). 23. Turn differential housing over with the input end up. Remove bolts and lock tabs from retainer (37). Install two 1/2"-13 NC forcing screws into retainer (37) and remove it from pinion bearing. Remove and inspect O-ring seal (39). Make a replacement if necessary. Remove shims (38). 24. Remove outer bearing cup (40) from retainer with tooling (E). 25. Remove seal from retainer with tooling (F). 26. Remove pinion assembly (41). Remove bearing cup (42) from carrier housing. 27. Remove seal ring from pinion assembly. 28. Remove large pinion bearing cone with tooling (G). 29. Remove smaller pinion bearing cone with tooling (H). 30. Remove air hose assembly (43).Assemble Differential
1. Install the air hose assembly on the carrier housing. 2. Lower temperature of pinion bearing cup. Install the cup into carrier housing with tooling (A). 3. Heat pinion bearing cone (4) to a temperature of 275°F (135°C) and install them on pinion (5). Install seal ring (3) on pinion. Install pinion assembly into carrier housing. Lower the temperature of bearing race for retainer (1). Install race in retainer. Install a new O-ring seal (2) on retainer. Install shims (6). Install retainer and the bolts that hold it. Do not install seal in retainer until after preload adjustment has been made. 4. Use shims as necessary behind retainer to put enough preload on the pinion bearing so the torque needed to turn the pinion is 20 5 lb.in. (2.3 0.6 N m). Use tooling (B) to turn the pinion slowly while the adjustment is made. After adjustment is made remove the retainer