Removal Procedure
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At operating temperature, the engine coolant is hot and under pressure. Steam can cause personal injury. Check the coolant level only after the engine has been stopped and the filler cap is cool enough to touch with the bare hand. Remove the filler cap slowly to relieve pressure. Cooling system conditioner contains alkali. Avoid contact with skin and eyes to prevent personal injury. |
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| NOTICE |
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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 machine. 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 in Caterpillar machines. Dispose of all fluids according to local regulations and mandates. |
- Drain the coolant level below the water temperature regulator.
- Loosen hose clamp (1) and disconnect hose (2) from cover (4) of the water regulator housing.
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| Illustration 1 | g00526763 |
- Remove two bolts (3) and the washers from cover (4) of the water regulator housing.
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| Illustration 2 | g00526764 |
- Remove cover (4) from the water regulator housing.
- Remove water temperature regulator (5) and gasket (6) from cover (4) .
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| Illustration 3 | g00526767 |
Installation Procedure
| NOTICE |
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Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. |
Note: Check the condition of the gasket. If the gasket is worn or damaged, use a new part for replacement.
- Clean the gasket sealing surface and remove all gasket material.
- Install water temperature regulator (5) and gasket (6) .
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If the water temperature regulator is installed incorrectly, it will cause the engine to overheat. |
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| Illustration 4 | g00526767 |
- Install cover (4) for the water regulator housing.
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| Illustration 5 | g00526764 |
- Install the washers and two bolts (3) in order to secure cover (4) of the water regulator housing.
- Reconnect hose (2) and tighten hose clamp (1) onto cover (4) of the water regulator housing.
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| Illustration 6 | g00526763 |
- Fill the cooling system to the correct level. Refer to the Operation and Maintenance Manual for the correct fluid and the correct filling procedure.