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20 Sep 2007
(7) Connect the airplane battery. Refer to Section 24-31.
(8) Install the engine top cowling. Refer to Section 71-10.
(9) Do a test of the manifold pressure indicating
system:
S Monitor the manifold pressure indicator.
S Set the ALT/BAT switch to ON.
S Do an engine ground run-up.
The indicator must show the relevant
indication.
Refer to the DA 40 Airplane Flight
Manual. The manifold pressure
indicator must show the relevant
indications.
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Engine Indicating DA 40 Series
AMM
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DA 40 Series
AMM
Engine Indicating
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Section 77-41
Engine Integrated Instrument System - TAE 125 Diesel Engine
1. General
This Section tells you about the engine indicating system for airplanes with the TAE 125 Diesel engine
installed. Two instruments located in the right side of the instrument panel show all engine related
indications.
The engine control unit (ECU) provides most of the indications for the engine. Refer to Section 76-01
for data about the engine fuel control system. The engine instrumentation also shows airframe fuel
system data. Refer to Section 28-41 for data about the airframe parts of the system.
2. Description and Operation
Two instruments give all of the engine indications. The instruments are located in the right side of the
instrument panel. Each instrument has a combination of digital and analog (LED chain) displays.
The Compact Engine Display (CED; Figure 1, top) gives the following indications:
) Propeller RPM. This has a 4-character digital display and a linear analog display from 0 to 2500
RPM.
) Oil Pressure. This is a linear analog display from 2.6 to 6.5 bar.
) Oil Temperature. This is a linear analog display from 50 ºC to 140 ºC.
) Coolant Temperature. This is a linear analog display from 60 ºC to 105 ºC.
) Gearbox Temperature. This is a linear analog display from 0 ºC to 120 ºC.
) Load. This has a 4-character digital display and a linear analog display from 0 % to 100 %.
AIRCRAFT
Engine Indicating DA 40 Series
AMM
Page 2
20 Sep 2007 77-41-00 Doc # 6.02.01
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LEVEL
WATER
gal/h
°C
FLOW
FUEL
GENERATOR
0
-30
A
65
90
5
FUEL TEMP MAIN
FUEL 10
QUANTITY
0
MAIN
gal
14
15,5
-30
11 V
°C
VOLT
65
FUEL TEMP AUX
FUEL 10
QUANTITY
gal
AUX
0
14
5
1/min 2500
60 °C 105
°C 120
% 100
50
2.6
°C
bar 6.5
140
LOAD
CT
OT GT
OP
RPM
Figure 1: Engine Instruments
AIRCRAFT
DA 40 Series
AMM
Engine Indicating
Doc # 6.02.01
Rev. 5 77-41-00 Page 3
20 Sep 2007
The Auxiliary Engine Display (AED; Figure 1, bottom) gives the following indications:
) Water Level (Coolant). This is a low coolant level caution light (color: amber).
) Fuel Quantity Main. This is a circular analog display from 0 to 14 gal.
) Fuel Quantity Aux. This is a circular analog display from 0 to 14 gal.
) Fuel Temp Main. This is a linear analog display from -30 ºC to 65 ºC.
) Fuel Temp Aux. This is a linear analog display from -30 ºC to 65 ºC.
) Generator. This is a linear analog display from 0 to 90 ampères.
) Volts. This is a linear analog display from 11 to 15.5 volts.
) Fuel Flow. This is a 4-character digital display.
) Both digital and analog displays use groups of light-emitting diodes (LEDs).
A. Digital Displays
The RPM, load and fuel flow displays use the usual 7-segment LEDs.
B. Fuel Quantity Analog Displays
Each fuel quantity analog display has a group of 32 LEDs arranged in an arc. All but one of the
LEDs are green. The LED adjacent to the zero mark is red.
C. Linear Analog Displays
All of the linear analog displays use similar groups of 10 LEDs set in a horizontal line. Displays
showing pressure, temperature, current and voltage use combinations of red, yellow and green
LEDs. The colors have the usual meanings for instrument markings.
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Engine Indicating DA 40 Series
AMM
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DA 40 Series
AMM
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Trouble-Shooting
1. General
　
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