PISTON 3644382 - Caterpillar

Assembly Procedure
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.
Check the condition of all O-ring seals. If any seals are worn or damaged, use new parts for replacement.
Put clean hydraulic oil on all internal surfaces during assembly.
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Install three plugs (13) .
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Install two springs (11), two check valves (12) and two plugs (10) .
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Install electrical sensor (9) .
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Install valve (8) in diverter valve (1). Tighten valve (8) to a torque of 60 4 N m (45 3 lb ft).
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Install spool (5), shims (6) and two springs (7) in the diverter valve.
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Install O-ring (4), housing (3) and the two bolts, as shown.Note: The other two bolts are installed during the installation procedure.
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Install relief valve (2) in secondary steering diverter valve (1). Tighten the relief valve to a torque of 65 5 N m (48 4 lb ft).End By: Install the secondary steering diverter valve. Refer to Disassembly and Assembly, "Diverter Valve (Secondary Steering) - Install".