PUMP GP-HYDRAULIC 4T3229 - Caterpillar

Cleanliness is an important factor. Before assembly, all parts should be thoroughly cleaned in cleaning fluid. Allow the parts to air dry. Wiping cloths or rags should not be used to dry parts. Lint may be deposited on the parts which may cause later trouble. Inspect all parts. If any parts are worn or damaged, use new parts for replacement. 1. Use Tooling (A) to install the lip seal in valve body (2). Install the seal until it makes contact with the counterbore in the valve body and with the sealing lip facing in toward the valve body. Lubricate the lip of the seal with clean hydraulic oil.2. Check the condition of O-ring seal (6). If the seal is worn or damaged, use a new part for replacement. Install the O-ring seal on plug (3).3. Install spool (4), spring (5) and plug (3) in valve body (2), as shown. Install boot (1).End By:a. Install the steering neutralizer valve. Refer to Disassembly and Assembly, "Steering Neutralizer Valve - Install" for the machine that is being serviced.