SEAL 5435859 - Caterpillar

Removal Procedure
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
(A)     8S-7640     Stand     2    
8S-7611 Tube Assembly     2    
8S-7615 Pin     2    
(B)     138-7574     Link Bracket     1    Start By:
Separate the track. Refer to Disassembly and Assembly, "Track - Separate" in this manual.
Illustration 1 g00489826
Note: Adjust the height of Tooling (A) so that there is sufficient clearance between the sprocket and the track for the removal of the sprocket from the final drive.
Lift the side of the machine in order to install Tooling (A) under the frame, as shown.
Illustration 2 g00708732
Remove bolts (1) that hold sprocket (2) to the final drive.
Illustration 3 g00708688
Note: Use several washers between Tooling (B) and the sprocket. This will prevent damage to the sprocket.
Fasten Tooling (B ) and a hoist with a bolt, washers, and a nut to sprocket (2), as shown.
Remove sprocket (2) .
For Type "A" excavators, the weight of the sprocket is 41 kg (90 lb).
For Type "B" excavators, the weight of the sprocket is 36 kg (80 lb).Installation Procedure
Table 2
Required Tools    
Tool     Part Number     Part Description     Qty    
(A)     8S-7640     Stand     2    
8S-7611 Tube Assembly     2    
8S-7615 Pin     2    
(B)     138-7574     Link Bracket     1    
Thoroughly clean the mating surfaces of the sprocket and the final drive prior to installing the sprocket.
Illustration 4 g00708688
Note: Use several washers between Tooling (B) and the sprocket. This will prevent damage to the sprocket.
Fasten Tooling (B) and a hoist to sprocket (2) with a nut, washers, and a bolt.
Put the sprocket in position on the final drive.
Illustration 5 g00708732
Install bolts (1) that secure the sprocket to the final drive.
Tighten the bolts in a crisscross pattern. Tighten the bolts to a torque of 530 70 N m (395 50 lb ft).
Illustration 6 g00489826
Raise the machine. Remove Tooling (A) from the frame.End By: Connect the track assembly. Refer to Disassembly and Assembly, "Track - Connect" in this manual.