SHAFT 1F9491 - Caterpillar

Remove Sprockets
Start By:a. separation of tracks1. Remove the oil from the final drive housing. 2. Remove bolts (1) and locknut (2). 3. Remove nut (3) from the sprocket shaft. 4. Install tooling (A) as shown. Make sure there is .250 in. (6.35 mm) clearance between 6F8343 Adapter (5) and sprocket (4). Fasten a hoist to tooling (A). Loosen sprocket (4) from the sprocket shaft.
Do not remove 6F8343 Adapter (5) or the sprocket can fall when the tooling is removed.
5. Remove tooling (A) except for 6F8343 Adapter (5). Fasten a hoist to the sprocket as shown. Remove 6F8343 Adapter (5) from the sprocket shaft. 6. Remove sprocket (4). The weight is 52 kg (115 lb.). 7. Remove gasket (6) from the sprocket. 8. Remove outer half of Duo-Cone seal (7) from the sprocket. 9. Remove inner half of Duo-Cone seal (8) from the retainer.Install Sprockets
See Installation Of Duo-Cone Floating Seals before installing any of the Duo-Cone Seals.
1. Install the inner half of the Duo-Cone seal with tool (A) in the retainer. 2. Install the outer half of the Duo-Cone seal with tool (A) in the sprocket.
The splines in the sprocket and shaft must be clean and free from burrs.
3. Fasten a hoist to the sprocket. Put sprocket (1) in position on the sprocket shaft. 4. Install tooling (B) and fasten a hoist. Use tooling (B) to install the sprocket on the sprocket shaft with a force of 311 to 355 kN (35 to 40 ton). 5. Use tooling (C) to check the distance from the shoulder of the sprocket shaft to the face of the sprocket. The distance must be 3.00 0.8 mm (118 .03 in.). 6. Install gasket (2). 7. Install the nut that holds the sprocket on the sprocket shaft. Tighten the nut to a torque of 334 33 N m (243 24 lb. ft.). 8. Put 7M7260 Liquid Gasket Material between locknut (4) and the sprocket face. Install locknut (4). If the bolt holes do not make an alignment with the holes in the sprocket, turn nut (3) clockwise only to install locknut (4).9. Fill the final drive housing with oil to the correct level. See MAINTENANCE GUIDE.End By:a. connection of tracks