VALVE AS-CHECK 2143403 - Caterpillar

Removal Procedure
Table 1
Required Tools    
Tool    Part Number    Part Description    Qty    
A     5P-4204     Wrench     1    Start By:
Remove the tandem drive housings. Refer to Disassembly and Assembly, "Tandem and Cover - Remove and Install" for the correct procedure.
Illustration 1 g00621016
Remove bolt (1), the washer, and the lock from nut (2) .
Illustration 2 g00621019
Use Tooling (A) in order to remove nut (2) from the drive shaft.
Illustration 3 g00621021
Remove sprocket (3) and sprocket (4) from the drive shaft. The weight of each sprocket is 15 kg (33 lb) for 12H and 140H motor graders and 23 kg (51 lb) for the 160H motor grader.Installation Procedure
Illustration 4 g00621021
Position sprocket (3) on the drive shaft. Ensure that the hub of sprocket (3) is facing away from the final drives.
Position sprocket (4) on the drive shaft. Ensure that the hub of the sprocket (4) is facing toward the hub of sprocket (3) .
Illustration 5 g00621019
Illustration 6 g00637191
Install nut (2) that holds sprocket (4) and sprocket (3) on the drive shaft.
Use Tooling (A) in order to tighten nut (2) (not shown) to the proper torque. Use the following procedure.
Rotate the shaft and rap the sprockets while you tighten nut (2). This will preload the bearings. Tighten nut (2) to a torque of 12 1 N m (106 9 lb in).
In order to check that the bearings are fully seated, reverse the direction of nut (2) for one locking position and rap the sprockets.
Tighten nut (2) to a final rolling torque of 4 1 N m (35 9 lb in) above seal drag.
Install bolt (1), the washer, and the lock on nut (2) .End By: Install the tandem drive housings. Refer to Disassembly and Assembly, "Tandem and Cover - Remove and Install" for the correct procedure.