Water Temperature Regulator - Remove and Install
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| NOTICE |
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Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. |
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| 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 to a level below the water temperature regulator 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 g01232059 Typical example - Remove the setscrews (2) that hold the water temperature regulator housing (1) in position on the cylinder head. Remove the water temperature regulator housing. Remove the O-ring seal from the water temperature regulator housing. Discard the O-ring.
- Refer to Testing and Adjusting, "Water Temperature Regulator - Test" for the correct procedure on testing the water temperature regulator. If necessary, replace the water temperature regulator.
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| Required Tools | |||
| Tool | Part Number | Part Description | Qty |
| A | 207-1601 | Rubber Lubricant | 1 |
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| NOTICE |
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Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. |
- Clean the water temperature regulator housing.
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Illustration 2 g01232059 Typical example - Install a new O-ring seal on the water temperature regulator housing (1). Lubricate the O-ring seal with Tooling (A). Position the water temperature regulator housing on the cylinder head.
- Install the setscrews (2) that fasten water temperature regulator housing (1) to the cylinder head.
- Install the upper radiator hose and tighten the hose clamps. Refer to the Torque Specifications Manual for the correct torque.
- Fill the cooling system to the proper level. Refer to the Operation and Maintenance Manual, "Refill Capacities" for further information.
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