TUBE AS 7N4489 - Caterpillar

Start By:
Remove the center drive shaft.
Remove the hitch drive shaft.
Personal injury or death can result from machine articulation or movement.Machine frames can move and a person can be crushed.Connect the steering frame lock link between the front and rear frames before working on machine.Do not disconnect the lock link until the machine is made operational and the commissioning procedure is completed.
Illustration 1 g00783213
Typical Example
View from the underside of the rear frame.
Remove bolts (1) in order to remove locking plate (2) from thrust flange (3) and bearing carrier (4).
Illustration 2 g00783214
Typical Example
Turn over locking plate (2) and position the dowels on locking plate (2) into the holes in thrust flange (3). Insert a suitable 3/4 inch breaker bar into the locking plate in order to turn the thrust flange counterclockwise and remove thrust flange (3) from bearing carrier (4).
Illustration 3 g00783315
View from the hitch area.
Remove bolt (5) and washer (6) in order to remove shaft yoke (7) and the O-ring seal from bearing carrier (8) and the hitch drive shaft. Note: If necessary, use Tooling (E) in order to remove shaft yoke (7).
Illustration 4 g00783219
Remove bolts (9) in order to disconnect bearing carrier (4) from the hitch tube. Install Tooling (A) into the threaded holes in bearing carrier (4) in order to force bearing carrier (4) from the hitch tube. Use two people in order to remove bearing carrier (4) and the hitch drive shaft from the machine. The weight of bearing carrier (4) and the hitch drive shaft is approximately 41 kg (91 lb).
Remove lip seal (10) from the bearing housing.
Illustration 5 g00783239
Remove bolt (11) and washer (12) in order to remove shaft yoke (13) and the O-ring seal from bearing carrier (4) and hitch drive shaft (14). Note: If necessary, use Tooling (E) in order to remove shaft yoke (13).
Illustration 6 g01196521
Use Tooling (B) in order to remove retaining ring (15). Remove bearing (16) and hitch drive shaft (14) from bearing carrier (4). Remove O-ring seal (17) from bearing carrier (4).
Illustration 7 g01196525
Use a suitable punch in order to remove lip seal (18) from bearing carrier (4).
Illustration 8 g01196527
Use a suitable press and Tooling (C) in order to remove bearing (16) from hitch drive shaft (14). Turn over hitch drive shaft (14). Repeat the procedure in order to remove the bearing that is located on the opposite end of hitch drive shaft (14).
Illustration 9 g00783741
Remove bolts (19) in order to disconnect bearing carrier (8) from the hitch tube. Install Tooling (D) into the threaded holes in bearing carrier (8) in order to force bearing carrier (8) from the hitch tube. Remove bearing carrier (8) from the machine.
Illustration 10 g00783742
Use a suitable punch in order to remove lip seal (20) from bearing carrier (8). Remove O-ring seal (21) from bearing carrier (8).