31-20-00 31-20-00
Indicating Systems AIRCRAFT DA 40 Series AMM
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% Figure 2: Davtron M803 Digital Chronometer
Indicating Systems
AMM
Maintenance Practices
1. General
This Section tells you how to replace the digital chronometer. Refer to the equipment manufacturer's manuals for more data on the digital chronometer.
2. Remove/Install the Digital Chronometer
A. Remove the Digital Chronometer
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Detail Steps/Work Items Key Items/References
(1) Open the OAT-circuit breaker. Only for the Davtron M803.
(2) Remove the instrument panel cover. Refer to Section 25-10.
(3) Disconnect the electrical cable from the chronometer.
(4) Remove the screws which attach the chronometer to the instrument panel. Hold the chronometer.
(5) Move the chronometer out of the instrument panel and lift clear of the airplane.
Doc # 6.02.01 Page 201
Rev. 4 09 Jan 2003
31-20-00
AMM
B. Install the Digital Chronometer
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DA 40 Series
Detail Steps/Work Items Key Items/References
(1) Move the chronometer into its position in the instrument panel.
(2) Install the screws which attach the chronometer to the instrument panel.
(3) Connect the electrical cable to the rear of the chronometer.
(4) Do a test for correct OAT indication. S Close the OAT circuit-breaker. S Set the ALT/BAT switch (Lycoming version) or the ELECTRIC MASTER key switch (TAE version) to ON. S Read OAT indication. S Set the ALT/BAT switch (Lycoming version) or the ELECTRIC MASTER key switch (TAE version) to OFF. Davtron M803 only. The OAT indicator must indicate the ambient temperature ±1°.
(5) Astrotech LC2: S If necessary, set time and date. Davtron M803: S If necessary, set the time. Refer to equipment manufacturer's manuals, or to Supplement E1 to the Airplane Flight Manual. Refer to equipment manufacturer's manuals, or to Supplement E4 to the Airplane Flight Manual.
(6) Install the instrument panel cover. Refer to Section 25-10.
Page 202 Doc # 6.02.01 09 Jan 2003 Rev. 4
31-20-00
Indicating Systems
AMM
Section 31-50 % Central Warning System - Lycoming Engine
1. General
% The DA 40 with the Lycoming engine installed has warning, caution and status lights combined in a single annunciator panel. There are two variants of the annunciator panel ('DAI' and 'White Wire'). Only one variant is installed.
2. Description and Operation
A. DAI Annunciator Panel
(1) Warning, Caution and Status Lights
) OIL PR Red warning light indicating low oil pressure. An oil pressure transducer installed in the engine accessory housing operates the warning light when the oil pressure is less than 25 psi.
) FUEL PR Red warning light indicating low fuel pressure. A fuel pressure transducer installed in the fuel line between the engine driven fuel pump and the injector operates the warning light when the fuel pressure is less than 14 psi.
) L FUEL Amber caution light indicating low fuel level in the left fuel tank. A fuel level switch in the left fuel tank operates the caution light. The caution light starts to flash when the fuel level in the left fuel tank is low. It illuminates permanently when the fuel level (usable) in the left fuel tank falls below 3 US gal (±1 US gal).
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