SEAL-BACKUP 2331892 - Caterpillar

Removal Procedure
Start By:
Install the wheel chocks. Refer to Disassembly and Assembly, "Wheel Chocks - Remove and Install".
Illustration 1 g00506572Note: The following procedure illustrates the removal and installation of charging valve (1) from right rear suspension cylinder (2). This procedure can be used for the removal of the charging valve from the left rear suspension cylinder.Note: Cleanliness is an important factor. Before the removal procedure, the exterior of the component should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism.
Illustration 2 g00506576
Install blocking between frame assembly (3) and A-frame (4), before the nitrogen charge is released from suspension cylinder (2). The blocking is used in order to support the weight of frame assembly (3).
Release all nitrogen pressure from suspension cylinder (2). Refer to Suspension Cylinder Systems Operation/Testing and Adjusting, SENR1496, "Suspension Cylinder (Rear) - Purge and Charge" for the correct procedure.
Illustration 3 g00506579
Remove two bolts (5) and the washers. Remove guard (6).
Illustration 4 g00506604
Remove bolt (9), the washer, and the clip.
Disconnect wire harness (8) from payload pressure sensor (7) at the electrical connection.
Illustration 5 g00506610
Remove four bolts (10). Remove charging valve (1) and payload pressure sensor (7) from suspension cylinder (2) as a unit.
Plug the pressure ports on suspension cylinder (2). This helps to prevent fluid loss and this helps to prevent contaminants from entering the system.