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Desert Aircraft DA 100 EFI, Owner'S Manual

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Desert Aircraft DA 100 EFI Owner'S Manual Download Page 6

DESERT AIRCRAFT OWNER’S MANUAL  HFEDCN0054 Rev G 

 

 

6 

This Document is not controlled when printed.  See HFE “Released Documents” folder on server for latest revision, 

or contact HFE International.

 

EFI Components and Descriptions 

 

Figure 1: Engine Control Module (ECM) 

 

Figure 2: ECM Input Harness from Receiver 

14 Pin ECM 
Connector 

Fuel Pump 

Throttle 
Command 

Tach 
Output 

Battery 

14 Pin 
Connector 
from Receiver 

24 Pin 
Connector to 
Engine 

Engine Vacuum 
Line 

Summary of Contents for DA 100 EFI

Page 1: ...DA 100 120 EFI Electronic Fuel Injected Engines OWNER S MANUAL ...

Page 2: ...proved Date A Initial Release T West 12 29 2015 D Gallaher 12 29 2015 B Added ECM Blink Signals T West 3 28 2016 D Gallaher 3 28 2016 C Added Throttle Kill UAV Instructions K Gratien 7 14 2016 T West 7 14 2016 D Updated Header K Gratien 3 28 2017 T West 3 28 2017 E Updated maintenance schedule table T West 11 3 2017 D Gallaher 11 3 2017 F Updated with Revision Table A Sanchez 12 14 2017 T West 12 ...

Page 3: ...contact HFE International Table of Contents Section Page 1 General Safety 4 2 Un Packing Your Engine 5 3 Getting Started 9 a Hardware Installation 10 b Transmitter Receiver Set Up 11 c Starting Engine 11 4 Maintenance 12 5 ECM Signal Data 13 a Blink Patterns 14 6 Technical Specifications 15 a Battery Recommendations 15 7 Warranty Information 16 8 Part Numbers 18 ...

Page 4: ...ould be established in which no person or object is allowed to enter Install a guard around the propeller when appropriate WARNING 1 Observe all safety precautions when working around the propeller 2 Exhaust contains poisonous carbon monoxide a colorless and odorless gas Breathing carbon monoxide can cause loss of consciousness and may lead to death 3 Never run your engine in an enclosed space Alw...

Page 5: ... assembly from the box Package Contents 1 Engine with Intake Assembly 2 Engine Control Unit ECM 3 Main Wire Harness 4 Owner s Manual 5 Optional Mufflers and Installation hardware 6 Fuel Pump ATTENTION Observe Precautions for Handling Electrostatic Sensitive Devices ESD The ECM and Throttle servo on this engine contain sensitive electronic hardware As a result this engine is packaged in electrostat...

Page 6: ...ts folder on server for latest revision or contact HFE International EFI Components and Descriptions Figure 1 Engine Control Module ECM Figure 2 ECM Input Harness from Receiver 14 Pin ECM Connector Fuel Pump Throttle Command Tach Output Battery 14 Pin Connector from Receiver 24 Pin Connector to Engine Engine Vacuum Line ...

Page 7: ... revision or contact HFE International Figure 3 Main Engine Harness Figure 4 Assembly Hardware Exhaust Gaskets Fuel line between fuel tank and fuel pump Vacuum line between ECM and engine Fuel line between engine and fuel pump Heat Shrink used to connect CHT sensor to wire harness 24 Pin ECM Connector Engine Connector Ignition Connector Crank Input ...

Page 8: ...d when printed See HFE Released Documents folder on server for latest revision or contact HFE International Figure 5 Fuel Pump Figure 6 Engine and Crank Harness Fuel Out to Engine Fuel In from Fuel Tank Fuel Connector Crank Position Sensor Connector 13 Pin Engine Harness Connector ...

Page 9: ...nents 3 Getting Started Engine Oil This engine was calibrated using Red Line 2 Stroke All Sport oil at a mix ratio of 40 1 This oil type and mix ratio should be maintained to ensure that the fuel injection system and engine operates as designed Oil Brand Red Line Oil Type 2 Stroke All Sport Mix Ratio 40 1 40 parts gasoline to one part oil Fuel Recommendations Throttle Servo Injector MAP Fitting Fu...

Page 10: ...d can be encapsulated in foam to isolate it from vibration if needed 2 Refer to the diagrams in section 2 for wire harness designations and connections 3 Install blue tube between the ECM and the manifold air pressure port on the throttle body 4 Install the gray tube from the fuel pump push to connect to the injector port on the throttle body Figure 8 Push to Connect Diagram Push tubing past locki...

Page 11: ...nition system thus stopping the operation of the engine 3 UAV Option Provide power to the enable line when power is removed ECM will remove power to both the injector and ignition system thus stopping the operation of the engine FUEL SYSTEM WARNINGS Do not connect the fuel port to the Manifold Air Pressure tube Do not exceed 15 PSI 1 bar of fuel pressure c Starting Your Engine for the First Time 1...

Page 12: ...hrottle for 15 seconds to verify that the air in the fuel system has been purged Reduce the engine speed to idle Starting Again After First Start Give the prop several aggressive flips the engine should start If the engine does not start increase throttle above 50 to clear possible flooded condition Give the prop several more aggressive flips 4 Maintenance Maintenance Schedule Item Before Each Fli...

Page 13: ...K PWR 5V power supply output from the Engine Control Unit for the crank sensor 13 SERVO GND Throttle servo ground 14 CRANK GND Crank sensor ground 15 SERVO SIGNAL Throttle position with logic level output A Pulse Width Modulated PWM signal at nominally 100Hz with ON time ranging from 900µs to 2100µs corresponding to throttle position This pin has an 8mA draw 16 CRANK SIGNAL 5V logic level digital ...

Page 14: ...lse Width Modulated PWM signal at nominally 50Hz with ON time ranging from 900µs to 2100µs corresponding to throttle position 0 to 100 This pin has an 8mA draw 10 GND Throttle input ground reference 11 ENABLE Special feature available on request Engine enable signal from AP A 5 volt signal present to enable UAV option only This pin has an 8mA draw 10k pull down resistor 12 GND Enable ground refere...

Page 15: ...ts M5x16mm 70 in lbs Aluminum cylinder base bolts M5x16mm 60 in lbs Steel cylinder base bolts M5x16mm 95 in lbs Air Filter Cap nuts M5x75mm 10 in lbs Steel motor mount bolts M6x16mm 120 in lbs Caution Care must be taken to not over tighten the TBI mounting bolts Over tightening can distort and damage the injected molded reed valve parts rubber gaskets and throttle body a Battery Recommendations An...

Page 16: ...tem are covered with a 3 year warranty by Desert Aircraft starting from the date of purchase This warranty covers defects in workmanship and materials only Do not disassemble the motor or ignition system Disassembly of the motor or ignition system can void the warranty on that item Any modifications to the motor or the ignition system other than those authorized by Desert Aircraft will void this w...

Page 17: ... the ECM or Throttle Body assembly Disassembly of the ECM or Throttle Body assembly will void the warranty on that item Any modifications to the ECM or Throttle Body assembly other than those authorized by Desert Aircraft will void this warranty This warranty does not cover the following Shipping expenses to and from Desert Aircraft for warranty service Damage caused by improper handling operation...

Page 18: ...IRCRAFT OWNER S MANUAL HFEDCN0054 Rev G 18 This Document is not controlled when printed See HFE Released Documents folder on server for latest revision or contact HFE International 8 Part Numbers Compact Parts ...

Page 19: ...8 8 SS 1 9 DA120EFI 20 20MM INJECTOR ASSEMBLY 1 10 DA120EFI 21 LINKAGE LARGE 20MM 1 10 1 DA120EFI 22 20MM THROTTLE HORN 1 10 2 DA120EFI 23 20 25MM MAIN LINK 1 10 3 DA120EFI 24 SERVO ARM MODIFIED 1 10 4 DA120EFI 25 PHMS 2 56 X 7 32 18 8 SS 2 10 5 DA120EFI 26 SS BALL BEARING 3 16 OD 2 11 DA120EFI 27 VELOCITY STACK WITH MAT 1 11 1 DA120EFI 28 20MM VELOCITY STACK 1 11 2 DA120EFI 29 DA MAT SENSOR 1 12 ...

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