DISTRIBUTION AR 4216031 - Caterpillar

At operating temperature, the engine coolant is hot and under pressure. Steam can cause personal injury. Drain the coolant only after the engine has been stopped and the fill cap is cool enough to touch with your bare hand. Remove the fill cap from the radiator slowly to relieve pressure. Cooling system conditioner contains alkali. Avoid contact with the skin and eyes to avoid personal injury.
1. Remove the coolant from the engine. See the Operation & Maintenance Manual for the correct draining procedure. Some of the engine compartment components have been removed for better photo illustration: 2. Disconnect tube assembly (1) from the engine oil cooler.3. Disconnect tube assembly (5) from the engine oil cooler.4. Remove six bolts (4) and washers that hold the plate to the engine oil cooler. Remove the gasket with the plate.5. Remove thirteen bolts (3) and washers that hold the engine oil cooler to the cylinder block. Remove the engine oil cooler base and gasket. 6. Remove plug (2), valve spring (6) and bypass valve (7) from the engine oil cooler base. 7. Remove engine oil cooler (8) and gasket from the cylinder block. Remove the two O-ring seals from the cylinder block. The following steps are for the installation of the engine oil cooler.8. Check the condition of the all O-ring seals and gaskets used in the installation of the engine oil cooler. If any of the parts are damaged, use new parts for replacement.9. Put the two O-ring seals in position in the cylinder block. Put the gasket and engine oil cooler (8) in position in the cylinder block.10. Install the O-ring seal on plug (2).11. Apply clean engine oil on the components of the engine oil cooler bypass valve. Install engine oil cooler bypass valve (7), valve spring (6) and plug (2) in the engine oil cooler base.12. Put the gasket and engine oil cooler base in position over the engine oil cooler. Install thirteen bolts (3) and washers that hold the engine oil cooler to the cylinder block.13. Connect tube assembly (1) to the engine oil cooler.14. Install six bolts (4) and washers that hold plate to the engine oil cooler.15. Connect tube assembly (5) to the engine oil cooler.16. Fill the cooling system. Refer to the "Operation & Maintenance Manual" for the proper procedure to fill the cooling system.