FILM 6V3680 - Caterpillar

Removal Procedure
Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact skin.
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.
Note: Install caps and plugs on all openings in order to prevent dirt or debris from entering the system. Cleanliness is an important factor. Before the removal procedure, the exterior of the component should be thoroughly cleaned. This will prevent dirt from entering the internal mechanism.
Position a suitable container below the engine oil cooler in order to contain the oil for storage or for disposal.
Illustration 1 g00709572
Disconnect hose assembly (2) from engine oil cooler bypass valve (1) .Note: Hose assembly (2) is only installed on machines that are equipped with an engine prelubrication system.
Illustration 2 g00709573
Remove three bolts (3) that hold engine oil cooler bypass valve (1) to the engine oil cooler. Remove engine oil cooler bypass valve (1) from the machine.
Sudden release of spring force can cause injury.To prevent the possibility of injury, follow the procedure to relieve the spring pressure.
Illustration 3 g00652686
Hold cover (8) in position on cooler bypass elbow (4). Slowly loosen the two bolts (not shown) that hold cover (8) in place. Loosen each bolt by one revolution before you loosen the other bolt. Remove the two bolts (not shown) and the washers.
Remove cover (8), spring (7), and bypass valve (6) from elbow (4). Remove O-ring seal (5) from elbow (4) .Installation Procedure
Note: Check all of the O-ring seals and the components for wear or for damage. Replace the components, if necessary. Lubricate all of the O-ring seals lightly with the lubricant that is being sealed. Clean all of the components with a cloth that is free of loose material (lint).
Illustration 4 g00652686
Install bypass valve (6) and spring (7) in cooler bypass elbow (4). Install O-ring seal (5) on elbow (4) .
Improper assembly of parts that are spring loaded can cause bodily injury.To prevent possible injury, follow the established assembly procedure and wear protective equipment.
Position cover (8) on elbow (4). Install the two bolts (not shown) and the washers that hold cover (8) in position. Tighten the bolts evenly.
Illustration 5 g00709573
Position engine oil cooler bypass valve (1) on the engine oil cooler, as shown. Install three bolts (3) that hold engine oil cooler bypass valve (1) to the engine oil cooler.
Illustration 6 g00709572
Connect hose assembly (2) to engine oil cooler bypass valve (1) .Note: Hose assembly (2) is only installed on machines that are equipped with an engine prelubrication system.
Check the level of the engine oil. Refer to Operation and Maintenance Manual, "Engine Oil Level - Check".