Water Temperature Control Valve - Remove and Install
- Refer to Operation and Maintenance Manual, "System Pressure Release".
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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.
- Refer to Operation and Maintenance Manual, "Cooling System Coolant (ELC) - Change" for the correct draining and filling procedure.
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Illustration 1 g01961173 - Remove panel (1).
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Illustration 2 g01961179 - Remove bolts (2). Remove bolt (3) and bracket (4).
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Illustration 3 g02504376 Show/hide tableCooling system coolant additive contains alkali. To help prevent personal injury, avoid contact with the skin and the eyes. Do not drink cooling system coolant additive.
Show/hide tableNOTICE A large amount of coolant can remain in tube (6). Be prepared to collect any excess coolant in a suitable container.
- Remove bolts (5). Disconnect tube assembly (6).
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Illustration 4 g02073994 - Open the thermostatic valve to allow the coolant to drain from the bottom of the radiator. Remove bolts (7). Disconnect tube assembly (8).
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Illustration 5 g02073997 - Disconnect harness assembly (9).
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Illustration 6 g03498496 - Disconnect harness assembly (10) and remove the connecting hardware.
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Illustration 7 g02074004 - Attach a suitable lifting device onto thermostatic valve (11). The weight of thermostatic valve (11) is approximately
34 kg (75 lb) .Show/hide table
Illustration 8 g02074013 - Remove bolts (12). Remove thermostatic valve (11).
- Install thermostatic valve (11) in the reverse order of removal.
Caterpillar Information System:
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