77-CONTENTS
Engine Indicating
AMM
CHAPTER 77
ENGINE INDICATING
% Section 77-00 % Engine Indicating - Lycoming Engine
1. General
% This Section tells you about the engine indicating system for airplanes with the Lycoming engine
% installed. The DA 40 has an integrated engine instrument which gives engine indications in a single display unit. The DA 40 also has an annunciator panel which has warning lights for low oil pressure and low fuel pressure. The transducers that provide the signals for the warning lights on the annunciator panel are installed in parallel with the fuel pressure and oil pressure transducers of the integrated engine display system. The maintenance practices for the annunciator panel transducers are similar to those of the integrated engine instrument.
Refer to the VM 1000 Owner's Manual for more data on the detailed operation and setting of the VM 1000 Integrated Engine Instrument. Refer to Chapter 92 for the Wiring Diagrams for all the electrical transducers and to Section 77-40 for the related maintenance practices.
The display system also has these other indicators for non-engine airplane systems:
) Fuel quantity.
) Electrical ammeter.
) Voltmeter.
Section 77-40 tells you about the engine indications. For more data on the indicator system refer to the equipment manufacturer's manual.
Refer to Section 28-40 for more data on the fuel quantity indicating system and refer to Section 24-30 for more data on the electrical current indicating system.
Note: Equipment which is certified for installation in the DA 40 is listed in Section 6.5 of the Airplane Flight Manual. Such equipment may be installed in accordance with the Airplane Maintenance Manual.
Any equipment which is not listed in Section 6.5 of the Airplane Flight Manual is called "Additional Equipment". The installation of Additional Equipment is a modification which must be handled in accordance with national regulations or a Service Bulletin.
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% Section 77-01 % Engine Instrumentation - 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 analogue displays.
% The top instrument is the Compact Engine Display (CED). It shows RPM, oil pressure, temperatures % and load.
% The bottom instrument is the Auxiliary Engine Display (AED). It shows fuel quantity, flow and % temperature. It also shows the electrical system current and voltage.
% Refer to Section 77-41 for data about the system.
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Section 77-40 % Integrated Engine Indication - Lycoming Engine
1. General
The DA 40 has an integrated engine-indication system. The integrated engine instrument (VM 1000) shows all the engine indications on a single display screen.
Figure 1 shows the location of the integrated engine instrument.
2. Description/Operation % A. integrated Engine Instrument % Figure 1 shows the VM 1000 integrated engine instrument. It is located in the instrument panel, see
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