BRIDGE AS-INLET 4N5612 - Caterpillar

Table 1
Tools Needed Quantity
4C-6500 Digital Thermometer (1) 1
(1) A temperature indicator of known accuracy can also be used.Check the accuracy of the water temperature indicator and/or water temperature sensor if you find either of the following conditions:
The engine runs at a temperature that is too hot, but a normal temperature is indicated. A loss of coolant is found.
The engine runs at a normal temperature, but a hot temperature is indicated. No loss of coolant is found.
Personal injury can result from escaping fluid under pressure.If a pressure indication is shown on the indicator, push the release valve in order to relieve pressure before removing any hose from the radiator.
Making contact with a running engine can cause burns from hot parts and can cause injury from rotating parts.When working on an engine that is running, avoid contact with hot parts and rotating parts.
Install a probe for the test thermometer into a suitable location near the suspect indicator's water temperature sensor.
Start the engine. Run the engine until the temperature reaches the desired range according to the test thermometer.
Compare the reading on the water temperature indicator with the reading on the test thermometer. If the readings are within the tolerance for the range of the water temperature indicator, the indicator and the sensor are OK.If the readings are not within the tolerance for the range of the water temperature indicator, obtain a new indicator and/or a sensor.