Usage:
Start By:
a. separation of tracks
b. remove pinion flanges
c. remove sprocket
1. Drain the oil from the final drive case.
2. Install tool (A) and fasten a hoist as shown. Remove twenty bolts and washers (1) (not shown) that hold the final drive cover to the steering clutch case. Install tool (C) on the end of the sprocket shaft.
3. Install two 3/8 " - 16 NC forcing screws (3) in the final drive cover. Tighten the forcing screws evenly and remove final drive (2) using bar inside tool (C) to keep unit balanced. The weight is 106 kg (235 lb).
4. Remove the race and roller assembly for the pinion shaft from the final drive cover. See the topic, Remove Sprocket Shaft Gear And Cover.
5. Remove pinion (4).
6. Remove bearing races (5) and (6) from pinion (4).
Typical Example
7. Remove six bolts (7) that hold bearing cage (8) to the steering clutch case.
NOTE: Bolts are used on newer models rather than studs.
Typical Example
8. Install two 3/8 " - 16 NC forcing screws (9). Tighten the forcing screws evenly and remove bearing cage (8).
NOTE: Bolts are used on newer models rather than studs.
9. Remove O-ring seal (11) and lip-type seal (10) from bearing cage (8).
10. Remove race and roller assembly (12) from bearing cage (8).
NOTE: The following steps are for installation of the final drive pinions.
11. Inspect all parts for damage and make replacements if needed.
12. Lower the temperature of race and roller assembly (12). Install race and roller assembly (12) in bearing cage (8).
13. Use tooling (B) and install lip-type seal in bearing cage (8) with the lip of the seal toward the final drive cover as shown. Put oil on the lip of the seal.
14. Install O-ring seal (11) on the bearing cage.
15. Put bearing cage (8) on the steering clutch case. Install the bolts that hold the bearing cage in place.
16. Heat bearing races (5) and (6) to a maximum temperature of 135° C (275° F). Install bearing races (5) and (6) on pinion (4).
17. Install pinion (4) in the bearing cage.
18. Install the race and roller assembly for the pinion shaft in the final drive cover. See the topic, Install Sprocket Shaft, Gear And Cover.
19. Put 6V6640 Liquid Gasket Material on the machined surfaces of the final drive cover and steering clutch case.
20. Install tool (A) and fasten a hoist to the final drive. Put the final drive in position on the steering clutch case. Remove tool (C).
21. Apply 9S3263 Thread Lock on the threads of bolts and washers that hold the final drive in place. Remove tool (A). Tighten bolts to a torque of 135 ± 15 N·m (100 ± 11 lb ft)
22. Fill the final drive with oil to the correct level. See the Operation And Maintenance Manual.
End By:
a. install pinion flanges
b. connection of tracks
c. install sprocket