Removal Procedure
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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 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. |
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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 cooling system pressure cap slowly to relieve pressure only when engine is stopped and cooling system pressure 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 Coolant Additive contains alkali. Avoid contact with skin and eyes. |
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- Drain the coolant from the cooling system into a suitable container for proper storage or for disposal. Refer to Operation and Maintenance Manual, "Capacities - Refill" for the capacity of the cooling system. Refer to Operation and Maintenance Manual, "Cooling System Coolant (DEAC) - Change" or Operation and Maintenance Manual, "Cooling System Extended Life Coolant - Change" for the proper draining procedure.
- Remove bolts (2). Remove clips (1) .
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| Illustration 1 | g01410716 |
- Loosen clamp (5). Disconnect hose (6). Remove bolts (3) and housing (4) .
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| Illustration 2 | g01410717 |
- Remove water temperature regulators (7) .
Note: The housing contains two water temperature regulators.
Installation Procedure
- Clean housing (4). Install a new gasket on water temperature regulator housing (4) .
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| Illustration 3 | g01410717 |
- Install water temperature regulators (7) .
Note: The housing contains two water temperature regulators.
- Position housing (4). Install bolts (3) .
- Install hose (6). Install clamp (5). Tighten clamp (5) to a torque of 11 ± 1 N·m (97 ± 9 lb in).
- Install clips (1). Install bolts (2) .
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| Illustration 4 | g01410716 |
- Fill the cooling system with coolant. Refer to Operation and Maintenance Manual, "Capacities - Refill" for the capacity of the cooling system. Refer to Operation and Maintenance Manual, "Cooling System Coolant (DEAC) - Change" or Operation and Maintenance Manual, "Cooling System Extended Life Coolant - Change" for the proper filling procedure.