Figure 2: Replace the Oil Temperature Sensor
AIRCRAFT DA 40 F
Figure 3: Fuel Flow Sensor Installation
DA 40 Series AMM
DA 40 F AIRCRAFT
LYCOMING LYCOMING
CHT Spade Connectors
Cylinder Head CHT Spade Connectors
CHT Probe
VIEW UNDER LEFT REAR CYLINDER HEAD SHOWN, OTHERS SIMILAR
Figure 4: CHT Probe Installation
AIRCRAFT DA 40 F
LYCOMING LYCOMING
EGT Spade Connectors
EGT Spade Connectors
EGT Probe
Worm-Drive Clamp
LEFT SIDE SHOWN RIGHT SIDE SIMILAR
Figure 5: EGT Probe Installation
DA 40 Series AMM
DA 40 F AIRCRAFT
Figure 6: Oil Pressure Sensor Installation
AIRCRAFT DA 40 F
Figure 7: Fuel Pressure Probe Installation
DA 40 Series AMM
DA 40 F
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DA 40 F
Trouble-Shooting
1. General
The table below lists the defects you could have with the integrated-engine-indication system. For more data on the system refer to the equipment manufacturer’s manual.
If you have the trouble detailed in the Trouble column read across to the Possible Cause column. Then do the repair given in the Repair column.
Trouble Possible Cause Repair
No indication on any of the No 24 volt supply to the Make sure that the circuit-
indicators with the engine integrated-engine-indication breaker for the engine
operating or with the ALT/BAT system. instruments is set. Do a
switch set to ON. Integrated-engine-indicator system indicator-panel inoperative. voltage test for 24 volts at pin 13 of connector J4 at the system data processing unit. If there is a 24 volt supply to the system then replace the indicator panel.
One of the indicators does not Sensor/Transducer defective. Do a test for continuity of the
indicate correctly. cables for the relevant sensor. If the cables are serviceable, then replace the sensor. Refer to Chapter 92 for the Wiring Diagrams.
DA 40 Series AMM
DA 40 F
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DA 40 F
Maintenance Practices
1. General
These maintenance practices tell you how to replace the integrated-engine-instrument panel. It also tells you how to replace the sensors and transducers for the engine indicators.
2. Remove/Install the Indicator Panel
A. Remove the Indicator Panel
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 The ALT/BAT switch is set to OFF. S The throttle is set to IDLE. S The mixture control is set to LEAN CUT-OFF.
(2) Remove the engine cowlings. Refer to Section 71-12.
(3) Disconnect the airplane battery. Refer to Section 24-31.
(4) Remove the instrument panel cover. Refer to Section 31-10.
(5) Disconnect the electrical connector from the display unit. At the rear of the display unit.
(6) Remove the 4 screws which attach the display unit to the instrument panel. From the front of the instrument panel. Hold the display unit!
(7) Move the display unit forward and clear of the instrument panel, then clear of the airplane.
DA 40 Series AMM
B. Install the Indicator Panel
DA 40 F
Detail Steps/Work Items Key Items/References 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：钻石40飞机维护手册 DA 40 SERIES AMM 6(79)
