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%  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 %. 

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% % % Figure 1: Engine Instruments %
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% 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.
Doc # 6.02.01 Page 3
Rev. 4 09 Jan 2003

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% Trouble-Shooting % 1. General
% The table below lists the defects you could have with the 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. % %

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Trouble  Possible Cause  Repair 
No indication on the engine indicators with the engine operating or with the ELECTRIC MASTER key switch set to ON.  INST 1 Circuit-breaker not set.  Make sure that the circuit-breaker for the engine instruments is set. 
　
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