Engine Run-In Procedure - Engine Dynamometer (14-02) Section 14 - Engine Testing - Group 14 M11 Page 14-36 Caution: Shutting off the engine immediately after op- erating at full load will damage the turbocharger and internal components. Always allow the engine to cool before shutting it off. Remove the dynamometer load completely, and operate the engine at 700 to 900 RPM for 3 to 5 minutes. This period will allow the turbocharger and other components to cool. Shut off the engine. Make sure all instrumentation is removed before remov- ing the engine from the engine dynamometer.