Rotax 912 ULS 3 User manual


OPERATORS MANUAL
FOR ROTAX® ENGINE TYPE 912 SERIES
ROTAX® 912 ULS 3 WITH OPTIONS
part no.: 899374
Ref. No.: OM-912

Before starting the engine, read the Operators Manual, as it contains
important safety relevant information. Failure to do so may result in per-
sonal injuries including death. Consult the original equipment manufactur-
ers handbook for additional instructions!
WARNING
These technical data and the information embodied therein are the property of BRP-Powertrain
GmbH&Co KG, Austria, acc, BGBI 1984 no. 448, and shall not, without prior
written permission of BRP-Powertrain GmbH&Co KG, be disclosed in whole or in part to
third parties. This legend shall be included on any reproduction of these data, in whole
or in part. The Manual must remain with the engine/aircraft in case of sale.
Copyright 2010 © - all rights reserved.
ROTAX®is a trade mark of BRP-Powertrain GmbH&Co KG. In the following document the
short form of BRP-Powertrain GmbH&Co KG = BRP-Powertrain is used.
Other product names in this documentation are used purely for ease of identification
and may be trademarks of the respective company or owner.
Approval of translation has been done to best knowledge and judgement - in any case
the original text in german language is authoritative.

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Introduction
Foreword BRP-Powertrain provides “Instructions for Continued Airworthi-
ness”, which are based on the design, the tests and certification
of the engine and its components.
These instructions apply only to engines and components sup-
plied by BRP-Powertrain.
This Operators Manual contains important information about safe
operation of the engine, together with descriptions of the system
and its layout, technical data, operating media and the operational
limits of the engine.
The specified data apply only to the engine and not to specific ap-
plications in particular aircraft. The aircraft manufacturer’s Opera-
tors Manual is therefore definitive in terms of the operation of the
engine, as it contains all of the aircraft-specific instructions.
Chapter structure The structure of the Manual follows whenever it is applicable the
structure of the „GAMA Specification #1 for Pilot’s Operating
Handbook“. The Operators Manual is subdivided into following
chapters:
Subject Chapter
Introduction Chapter INTRO
List of effective pages Chapter LEP)
Table of amendments Chapter TOA)
General note Chapter 1)
Operating instructions Chapter 2)
Standard operation Chapter 3)
Abnormal operation Chapter 4)
Performance data Chapter 5)
Weights Chapter 6)
Description of systems Chapter 7)
Checks Chapter 8)
Supplements Chapter 9)

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NOTES

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LEP) List of effective pages
Chapter Page Date
cover page
INTRO INTRO-1
INTRO-2
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LEP LEP-1
LEP-2
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TOA TOA-1
TOA-2
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Chapter Page Date

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NOTES

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TOA) Table of amendments
Approval*
The technical content is approved under the authority
DOA No. EASA.21J.048.
Current
no.
chapter page date of
change
remark for
approval
date of
approval from
authorities
date of
issue
signature
01 to 9 all 04 01 2010 DOA*

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NOTES

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1) General note
Foreword Before operating the engine, carefully read this Operators Manu-
al. The Manual provides you with basic information on the safe op-
eration of the engine.
If any passages of the Manual are not clearly understood or in
case of any questions, please, contact an authorized Distributor or
Service Center for ROTAX aircraft engines.
We wish you much pleasure and satisfaction flying your aircraft
with this ROTAX engines.
Table of content This chapter of the Operators Manual contains general and safety
information concerning the operation of the aircraft engine.
Subject Page
General note page 1-1
Abbreviations and terms used in this Manual page 1-3
Safety page 1-4
Safety notice page 1-5
Technical documentation page 1-8
Standard version page 1-10
Type description page 1-11
Denomination of cylinders, Engine views page 1-12
Technical data page 1-14
Fuel consumption page 1-14
Direction of rotation page 1-14

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1.1) General note
Purpose The purpose of this Operators Manual is provided to familiarize
the owner/user of this aircraft engine with basic operating instruc-
tions and safety information.
Documentation For more detailed information regarding, maintenance, safety- or
flight operation, consult the documentation provided by the aircraft
manufacturer and/or dealer.
For additional information on engines, maintenance or parts, you
can also contact your nearest authorized ROTAX-aircraft engine
distributor (Chapter 9.2).
Engine serial num-
ber
When making inquiries or ordering parts, always indicate the en-
gine serial number, as the manufacturer makes modifications to
the engine for product improvement.
The engine serial number is located on the top of the crankcase,
magneto side. See Fig. 1.
Fig. 1 00334
Part Function
1 engine serial number
1
Cyl. 1 Cyl. 3
Cyl. 4
Cyl. 2