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(1)  Put the indicator panel in position in the instrument panel.  From the rear of the panel. Take care to correctly locate the mode buttons at the bottom of the indicator panel correctly. 
(2)  Connect the electrical connector to the rear of the indicator panel. 
(3)  Install instrument panel cover.  Refer to Section 31-10. 
(4)  Connect the airplane battery.  Refer to Section 24-31. 
(5)  Install the engine cowlings.  Refer to Section 71-12. 
(6)  Do a test of the indicator panel: S Set the ALT/BAT switch to ON. S Set the ALT/BAT switch to OFF.  The indicators must give the correct indications. 
(7)  Do an engine ground run-up and monitor the engine indicator gauge indications.  Refer to the DA 40 F Airplane Flight Manual. The indicators must give the relevant indications. 

3. Replace an Engine Indicator Gauge Sensor/Transducer
A. Replace the Oil Temperature Sensor
Detail Steps/Work Items  Key Items/References 
WARNING: MAKE SURE THE ENGINE IS SAFE BEFORE YOU DO ANY WORK ON IT. IF THE ENGINE STARTS THE PROPELLER CAN CAUSE INJURY OR DEATH. 
(1)  Make sure that the engine is safe: S The ignition switch is set to OFF. S Set the ALT/BAT switch to OFF. S The throttle is set to IDLE. S The mixture control is set to LEAN CUT-OFF. 

DA 40 Series AMM

DA 40 F

Detail Steps/Work Items  Key Items/References 
(2)  Remove the engine top-cowling.  Refer to Section 71-12. 
(3)  Disconnect the airplane battery.  Refer to Section 24-31. 
(4)  Disconnect the electrical cables from the temperature sensor: S Remove the nut and washer from the electrical connector. S Remove the cable eye-end from the connector. 
WARNING: DO NOT GET OIL ON YOU. OIL CAN CAUSE SKIN DISEASE. 
(5)  Replace the oil temperature sensor: S Remove the sensor. S Remove and discard the O-ring seal. S Install a new O-ring seal. S Install a new sensor.  On the engine accessory housing. 
(6)  Connect the electrical cable to the sensor: S Put the electrical cable eye-end in position on the connector. S Install the washer and nut onto the electrical connector. 
(7)  Connect the airplane battery.  Refer to Section 24-31. 
(8)  Install the engine cowlings.  Refer to Section 71-12. 
(9)  Do a test of the engine oil temperature indicating system: S Monitor the oil temperature indication. S Set the ALT/BAT switch to ON. Do an engine ground run-up. S Shut the engine down.  The indicator must show the likely ambient temperature of the oil. Refer to the DA 40 F Airplane Flight Manual. The oil temperature indicator must show the relevant temperature of the oil. 

DA 40 Series AMM

DA 40 F

Detail Steps/Work Items  Key Items/References 
(10)  Look for oil leaks from the sensor: S Remove the engine top-cowling. S Look for oil leaks from the sensor. S Install the engine top-cowling. 

B. Replace the Fuel Flow Sensor
Detail Steps/Work Items  Key Items/References 
WARNING: MAKE SURE THE ENGINE IS SAFE BEFORE YOU DO ANY WORK ON IT. IF THE ENGINE STARTS THE PROPELLER CAN CAUSE INJURY OR DEATH. 
(1)  Make sure that the engine is safe: S The ignition switch is set to OFF. S Set the ALT/BAT switch to OFF. S The throttle is set to IDLE. S The mixture control is set to LEAN CUT-OFF. S Set the fuel shut-off to SHUT-OFF. 
(2)  Remove the engine cowlings.  Refer to Section 71-12. 
(3)  Disconnect the airplane battery.  Refer to Section 24-31. 
(4)  Disconnect the electrical connector from the sensor.  Refer to Figure 3. 
WARNING: DO NOT GET FUEL ON YOU. FUEL CAN CAUSE SKIN DISEASE. WARNING: DO NOT ALLOW FIRE NEAR FUEL. FUEL BURNS AND CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT. 
　
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