SEAL-BACKUP 2331800 - Caterpillar

Removal Procedure
Start By:
Install the wheel chocks. Refer to Disassembly and Assembly, "Wheel Chock (Front and Rear) - Remove and Install".
Install the retaining cable. Refer to Disassembly and Assembly, "Truck Body Retaining Cable - Remove and Install".
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products.Dispose of all fluids according to local regulations and mandates.
Personal injury can result from hot oil or hot components.At operating temperature, oil is hot and under pressure. Hot oil can cause burns.Remove the fill cap only when the engine is stopped, and the fill cap is cool enough to touch with your bare hand.Do not allow hot oil or components to contact skin.
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.Note: Put identification marks on all hose assemblies, on all tube assemblies and on all wire harnesses for installation purposes. Plug all hose assemblies and all tube assemblies. This helps to prevent fluid loss and this helps to prevent contaminants from entering the system.
Illustration 1 g00505353
Drain the hydraulic oil from the hydraulic tank into a suitable container. The hydraulic tank contains approximately 420 L (111 US gal). Refer to Operation and Maintenance Manual, SEBU7173, "Hoist, Torque Converter and Brake Tank Oil - Change" for the correct procedure.
Position a suitable container under traction control valve (2) in order to contain hydraulic oil for storage or disposal.
Disconnect hose assemblies (1) and (3).
Illustration 2 g00505361
Disconnect the following wire harnesses from wire harness (4) at the electrical connections: (5), (6) and (7).
Illustration 3 g00505389
Remove bolt (10), the washer and the clip from traction control valve (2). Remove solenoid (9) from traction control valve (2).
Position wire harness (4) out of the way.
Remove brake retraction pressure sensor (8).
Illustration 4 g00505390
Disconnect hose assembly (11).
Illustration 5 g00505391
Disconnect hose assembly (12).
Illustration 6 g00505393
Disconnect hose assembly (13).
Illustration 7 g00505398
Remove brake retraction pressure sensor (14).
Illustration 8 g00505399
Remove the following fittings from traction control valve (2): (15), (16), (17), (18) and (19).
Remove bolt (21) and the washer. Remove solenoid (20) and remove traction control valve (2) from the frame assembly.