AFTERCOOLER AS 2668538 - Caterpillar

Start By:a. separation of main frames1. Remove rear bottom guard from rear main frame. 2. Remove guard assembly (1) from frame. 3. Disconnect fuel lines (6) and brake lines (2) from block.4. Disconnect drive shaft (3) from winch. Remove guard assembly (4), block (5) and shims from the hitch assembly. 5. Remove rear differential drive shaft (7). 6. Bend the tabs on lock (10) and remove two bolts (8). Remove washer, O-ring seal and yoke (9). 7. Remove shims (11), retainer bolts (12) and warning plate (13). 8. Turn retaining ring (15) until the ring ends are on the bottom. Use tool (A) to remove it from its seat in the hitch assembly. The retainer can not be removed at this time. 9. Install tooling (B) and hoist on hitch assembly (16).10. Pull hitch assembly out far enough to remove retainer (14), retainer ring (15), shims and bearing cone. Remove hitch assembly from rear frame, The weight of the hitch assembly is 136 kg (300 lb). 11. Remove retaining ring (17) and lip type seal (18) with tooling (C). 12. Remove lip type seal (19). 13. If damaged remove inner bearing cup (20) from rear frame with a punch and harness. Remove outer bearing cup with tooling (D). 14. Remove shaft assembly (21) from hitch assembly with tooling (E). 15. Remove bearing cone (23) from shaft (21) with tooling (F). Remove seal (22) from shaft (21). 16. Remove bearing cone and spacer from the hitch with tooling (G) and a hoist. 17. Remove seal (24) from spacer. 18. Turn spacer over and remove O-ring seal (25). 19. Remove bearing cup (26) from the hitch with tooling (H). 20. Turn the hitch over and remove bearing cup (27) from hitch with tooling (J).Install Oscillating Hitch
1. Install bearing in hitch with tooling (A) with the bearing chamfer toward the outside. The dimension from the bottom of the bearing counterbore to the edge of bearing is 26.92 0.51 mm (1.06 .020 in). 2. Turn hitch assembly over and install bearing cup with tool (A). The lip of the seal must be away from bearing cone (3) when correctly installed. 3. Install lip type seal on spacer (1) as shown. 4. Install O-ring seal (2) in position on spacer. 5. Install spacer (1) in position on the hitch assembly and heat bearing cone (3) to a temperature of 135 ° C (275 ° F) and install in position on hitch. 6. Install seal (6) on shaft (4) with the sealing lip away from the bearing. Heat bearing (5) to a temperature of 135 ° C (275 ° F) and install in position on shaft (4). 7. Put shaft in position in hitch housing and heat bearing cone (7) to a temperature of 135 ° C (275 ° F). Install cone on shaft. 8. Install the spacer on top of bearing (7). Use two bolts 180 ° apart to install retainer (10) in position on housing.9. Install O-ring seal, original