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    9. Determine that the engine and exhaust jacket cooling water and high exhaust gas temperature (if equipped) sensors shut the engine down at the correct temperatures. A test method described below is offered for verifying that the sensors are calibrated to the correct temperature setting, or the sensors may be replaced with properly calibrated sensors.

    WARNING: EXHAUST PIPE AND SENSORS MAY BE HOT!  

    To test, unscrew the sensor from the exhaust manifold or pipe and install a pipe plug in its place. Start the engine and immerse the end of the temperature sensor into a container of heated and agitated water. The sensor must trip and shut down the engine before the temperature exceeds the equipment manufacturer's specified temperature setting.  

    10. Reinstall the temperature sensor(s).

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