190-00498-01 Rev. A Garmin G1000 Pilot’s Guide for Cessna Nav III 3-5EIS3.2 LEAN DISPLAYNOTE: The pilot should follow the engine manufacturer’s recommended leaning procedures in the Pilot’sOperating Handbook (POH).The Lean Display is accessed by pressing the ENGINE Softkey followed by the LEAN Softkey and providesinformation for performing engine leaning. The engine gauge(s) and Fuel Quantity Indicator remain on the LeanDisplay and fuel flow is listed as a numeric readout. Exhaust gas (EGT) and cylinder head (CHT) temperatures forall cylinders are displayed graphically with numeric readouts for the selected cylinder. For turbocharged aircraft,the Turbine Inlet Temperature (TIT) Indicator is shown above the EGT Bar Graph.Accessing the EIS Lean Display:1) Press the ENGINE Softkey.2) Press the LEAN Softkey.3) To return to the default Engine Display, press the ENGINE or BACK Softkey.From the Lean Display, the pilot can utilize the CYL SLCT and ASSIST softkeys to obtain information aboutspecific cylinders. Pressing the CYL SLCT (Cylinder Select) Softkey cycles through the cylinders (i.e., changes thecylinder indicated on the bar graphs in light blue). This softkey is disabled when the ASSIST Softkey is pressedor when a cylinder experiences a caution or warning condition; the softkey remains disabled until the temperaturereturns to normal.Monitoring the desired cylinder’s EGT and CHT:From the Lean Display, press the CYL SLCT Softkey to cycle through each cylinder and view its EGT and CHT.The selected cylinder is shown in light blue.The ASSIST Softkey aids in the leaning process by identifying the peak of the first cylinder whose temperaturefalls. This cylinder’s bar on the EGT and CHT bar graphs is highlighted in cyan as the selected cylinder. If thetemperature of the peaked cylinder exceeds the peak value, the peak value is not updated. Monitoring of thecylinder continues until the ASSIST Softkey is pressed again which disables lean assist, and removes the peakblock from the bar graph and the temperature deviation from peak (∆PEAK). The system then returns to seekingthe hottest cylinder.
