CORE AS-HYDRAULIC OIL COOLER 3803496 - Caterpillar

Removal Procedure
Start By:
Remove the water pump. Refer to Disassembly and Assembly, "Water Pump - Remove".
Remove the exhaust manifold. Refer to Disassembly and Assembly, "Exhaust Manifold- Remove and Install".
Remove the valve mechanism cover. Refer to Disassembly and Assembly, "Valve Mechanism Cover - Remove and Install".
Remove the rocker shaft and the pushrods. Refer to Disassembly and Assembly, "Rocker Shaft and Pushrod - Remove".
Remove fuel injection lines. Refer to Disassembly and Assembly, "Fuel Injection Lines - Remove and Install".
Remove the fuel injection nozzles. Refer to Disassembly and Assembly, "Fuel Injection Nozzles - Remove".
Remove the oil line. Refer to Disassembly and Assembly, "Engine Oil Line - Remove and Install".
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
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, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Illustration 1 g00828137
Illustration 2 g00828140
Gradually loosen cylinder head bolts (1) in the reverse order that is shown above. This will help prevent distortion of cylinder head (2) .Note: Do not use a pry bar to separate cylinder head (2) from cylinder block (3). Use a rubber mallet to loosen the cylinder head from the cylinder block.
Attach a suitable lifting device to cylinder head (2). Carefully lift cylinder head (2) off cylinder block (3). Remove the gasket off cylinder block (3) .
Place the cylinder head on a surface that will not scratch the face of the cylinder head.