Name: Rotax 912 ULS 3
Brand: Rotax
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page 44

May 01/2007

Effectivity: 912 Series

Edition 1 / Rev. 0

d04053

INSTALLATION MANUAL

BRP-Rotax

09153

Fig. 18

Fig. 17

- muffler assy.

See Fig. 17.

Material/thickness of the exhaust components:

X 6CrNiTi 189 (1.4541) (stainless) a= 1 mm (0.039 in.)

09159

- exhaust elbow (tailpipe)

See Fig. 18.

Material/thickness of the exhaust components:

X 5CrNi 189 (1.4301) (stainless) a= 1 mm (0.039 in.)

1 Table of Contents3
2 Index7
3 Preface9
- Remarks9
- Engine Serial Number9
- ROTAX Authorized Distributors for Aircraft Engines9
4 Safety11
- Repeating Symbols11
- Safety Information11
- Instruction13
- Technical Documentation14
5 List of the Effective17
6 Table of Amendments19
7 Description of Design21
- Designation of Type21
- Standard Engine Design21
- Auxiliary Equipment22
- Engine Components, Engine Views, Definition of Main Axes24
8 Technical Data27
- Operating Limits27
- Installation Dimensions28
- Weight28
- Centre of Gravity of Engine and Standard Equipment29
- Moments of Inertia29
9 Preparations for Engine Installation31
- Transport31
- State of Delivery31
- Engine Preservation31
- Protective Covering32
10 Engine Suspension and Position33
- Definition of Attachment Points34
- Permissible Fitting Positions35
- General Directives for Engine Suspension38
11 Exhaust System39
- Requirements on the Exhaust System40
- Operating Limits41
- General Directives for Exhaust-System42
- Data for Optional Components of Exhaust System43
12 Cooling System47
- Description of the System47
- Operating Limits48
  - BRP-Rotax48
- Coolant Types49
- Check Cooling System - Efficiency of the Cooling System50
  - 1) Measurement of Cylinder Head Temperature and Exit Temperature50
- Determination of Operating Limits, Coolant and Necessary Modification on Radiator Installation52
- Requirements on the Cooling System54
- Size and Position of Connections55
- Water Inlet Bend57
- Feasible Location of Radiator58
- Overflow Bottle59
- General Directives for the Cooling System61
- Coolant Capacity63
- Cooling Air Ducting63
  - 1)General Directives for Ducting of the Cooling Air64
- Data for Optional Components of Cooling System65
13 Lubrication System67
- Description of the System67
- Limits of Operation68
- Checking of the Lubrication System69
  - 1) Measuring of the Vacuum69
  - 2) Measuring of the Pressure in the Crankcase70
- Requirements on the Oil- and Venting Lines71
- Connecting Dimensions and Location of Connections72
  - 1) Oil Circuit (Engine)72
  - 2) Oil Tank75
- Feasible Position and Location of the Oil Tank76
- Feasible Position and Location of the Oil Cooler77
- General Notes on Oil Cooler77
- Filling Capacity77
- Purging of Lubrication System78
- Inspection for Correct Priming of Hydraulic Valve Tappets79
- Replacement of Components80
- Data for Optional Components of Oil System81
14 Fuel System83
- Description of System83
- Operating Limits85
- Requirements of the Fuel System86
- Connecting Dimensions, Location of Joints and Directives for Installation87
15 Carburetor91
- Requirements on the Carburetor91
  - 1) Drainage Piping on Airbox and Drip Trays92
- Connections for Bowden-Cable Actuation and Limit Load94
- Requirements on Cable Actuation96
- Requirements on the Throttle Lever97
16 Air Intake System99
- Operating Limits99
- Requirements on the Air Intake System100
- Data for Optional Components of Air Intake System104
17 Electric System107
- Requirements on Circuit Wiring107
  - 1) Electromagnetic Compatibility (EMC/EMI)108
- Wiring Diagram108
- Technical Data and Connection of the Electric Components110
18 Propeller Drive121
- Technical Data121
19 Vacuum Pump123
- Technical Data123
20 Hydraulic Governor for Constant Speed Propeller125
- Technical Data125
21 Connections for Instrumentation127
- Sensor for Cylinder Head Temperature127
- Sensor for Oil Temperature128
- Oil Pressure Sensor129
- Mechanical Rev Counter (Tach Drive)130
- Monitoring of the Intake Manifold Pressure131
- Air Temperature in the Airbox (Optional)132
22 Preparations for Trial Run of Engine133

Rotax 912 ULS 3 Installation Manual

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Brand	Rotax
Model	912 ULS 3
Category	Engine
Language	English