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Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. |
| NOTICE |
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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 Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products. Dispose of all fluids according to local regulations and mandates. |
- Drain the coolant from the cooling system into a suitable container for storage or disposal.
- Loosen the hose clamp from the upper radiator hose and remove the upper radiator hose from the water temperature regulator housing.
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Illustration 1 g00634312 - Remove bolts (1) that hold cover (2) in position on the water temperature regulator housing.
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Illustration 2 g00634424 - Remove cover (2) and the gasket from water temperature regulator housing (4).
- Remove water temperature regulator (3) and the gasket from water temperature regulator housing (4). Note the position of the water temperature regulator in the water temperature regulator housing for installation.
Note: Refer to Systems Operation, Testing and Adjusting, "Water Temperature Regulator - Test" for the correct procedure on testing the water temperature regulator.
- Inspect the condition of the gasket. Replace the gasket, if necessary.
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Illustration 3 g00634424 - Install water temperature regulator (3) and the gasket into water temperature regulator housing (4). Make sure that the water temperature regulator is installed in the original position.
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Illustration 4 g00634312 - Install cover (2) on the water temperature regulator housing.
- Install bolts (1) that fasten cover (2) to the water temperature regulator housing.
- Install the upper radiator hose and fill the radiator to the correct level with coolant. Refer to the Operation and Maintenance Manual for the correct procedure.