LEVER 2H9172 - Caterpillar

Start By:a. remove sprocket hubs 1. Drain the oil from the final drive cover.2. Engage the brakes and remove locknut (1) with tool (A). 3. Install tool (B) on the end of the sprocket shaft. Install tool (C) and fasten a hoist.4. Remove nuts (2) and bolts (3) that hold the cover to the steering clutch case. 5. Install two 3/8" - 16 NC forcing screws (4). Tighten the forcing screws evenly and remove the sprocket shaft, gear and cover as a unit. Use bar (5) inside of tool (B) to keep the unit in balance when it is removed. The weight is 108 kg (240 lb.). 6. Remove sprocket shaft (6) and gear from cover (7) with tooling (D) and a press.7. Remove cover (7) from the press. The weight is 56 kg (125 lb.). Remove sprocket shaft (6) and gear from the press. The weight is 52 kg (115 lb.). 8. Remove retainer (8) and bearing cone (9) from the cover. 9. Remove O-ring seal (10) from retainer (8). 10. If a replacement is needed, remove bearing cup (11), spacer (12) and bearing cup (13) from the cover. Do not remove race and roller assembly (14) unless a replacement is needed. The bearing can be damaged when removed.11. Remove race and roller assembly (14) from the cover with tool (E). 12. Remove spacer (15) from the sprocket shaft (6).13. Remove nuts and bolts (16) that hold the sprocket shaft and gear together. Remove gear (17). 14. Remove bearing cone (18) from the sprocket shaft with tooling (F). 15. If a replacement is needed, remove bearing race (19) from the sprocket shaft. 16. Remove bearing cage (20) from the steering clutch case. Do not remove race and roller assembly (21) unless a replacement is needed. The bearing can be damaged when removed.17. Remove race and roller assembly (21) from bearing cage (20).Install Sprocket Shaft, Gear And Cover, As A Unit
1. Install race and roller assembly (21) in bearing cage (20) with tooling (G) and a press. 2. Install bearing cage (20) on the steering clutch case. 3. If bearing race (19) was removed, heat bearing race (19) to a maximum temperature of 135° C (275° F). Install bearing race (19) on the sprocket shaft. If necessary, use tooling (H) to install the bearing race. 4. Install bearing cone (18) on sprocket shaft (6) with tooling (I). Use a force of 98 to 240 kN (11 to 27 ton). 5. Install gear (17) on sprocket shaft (6). Install the bolts and nuts that hold the gear and sprocket shaft together. Tighten the nuts to a torque of 80 7 N m (60 5 lb.ft.). Turn the nuts an additional 120° 5°. Minimum torque must be 307 N m (230 lb.ft.). 6. Lower the temperature of bearing cups (13) and (11). Install bearing cup (13) spacer (12) and bearing cup (11) in the cover. 7. If the race and roller assembly was removed, install the race