Removal Procedure
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Personal injury can result from hot coolant, steam and alkali. At operating temperature, engine coolant is hot and under pressure. The radiator and all lines to heaters or the engine contain hot coolant or steam. Any contact can cause severe burns. Remove filler cap slowly to relieve pressure only when engine is stopped and radiator cap is cool enough to touch with your bare hand. Do not attempt to tighten hose connections when the coolant is hot, the hose can come off causing burns. Cooling System Conditioner contains alkali. Avoid contact with skin and eyes. |
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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 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 from the coolant system below the level of the water temperature regulator into a suitable container for proper storage or disposal.
- Loosen hose clamp (2). Remove hose (1) from elbow (4) of the water temperature regulator housing.
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| Illustration 1 | g01156686 |
- Remove bolts (3). Remove elbow (4) from the water temperature regulator housing.
- Remove water temperature regulator (6). Remove gasket (5) .
Note: Seal (7) does not exist on the 906.
Note: Visually check the configuration of the water temperature regulator for installation purposes. The pin must be facing outward. The water temperature regulator will not operate properly unless the water temperature regulator is installed in the correct position.
Note: Refer to the Operation and Maintenance Manual for information concerning the testing of the water temperature regulator.
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| Illustration 2 | g00730480 |
Typical example | |
Installation Procedure
- Clean the seat ofthe water temperature regulator housing and elbow (4).
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| Illustration 3 | g00730480 |
Typical example | |
- Put water temperature regulator (6) in position in the water temperature regulator housing. The pin in the water temperature regulator must be in the outward position.
- Install a new gasket (5) on elbow (4) of water temperature regulator housing (8). Tighten bolts to a torque of 22 N·m (16 lb ft).
- Install hose (1) on elbow (4). Secure hose (1) with hose clamp (2) .
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| Illustration 4 | g01156686 |
- Fill the radiator with coolant. Refer to the Operation and Maintenance Manual for the proper type and the proper quantity of coolant.