Lycoming TEO-540 Series Manuel utilisateur
© 2022 Avco Corporation. All Rights Reserved.
Field Service Tool User Manual
& Troubleshooting Guide
TEO-540 Series Engine Models
August 2022
Part No. SSP-122
Field Service Tool User Manual
& Troubleshooting Guide
Lycoming Part Number: SSP-122
Contact Us:
Mailing Address:
Lycoming Engines
652 Oliver Street
Williamsport, PA 17701 USA
Phone:
Factory
U.S. and Canada Toll Free:
Direct:
+1 (800) 258-3279
+1 (570) 323-6181
• +1 (877) 839-7878 (Toll Free)
• +1 (570) 327-7222
• Email Technicals[email protected]
Lycoming’s regular business hours are Monday through Friday from 8:00AM through 5:00PM
Eastern Time (-5 GMT).
Visit us Online: www.lycoming.com
The information in this User Manual and Troubleshooting Guide is intended for general use of the
FST as a diagnostic tool for TEO-540-Series engines. If available, refer to the model specific
engine maintenance manual when identifying faults for your engine. There could be differences in
the troubleshooting steps for some faults.
TEO-540-C1A Engine Maintenance Manual
© 2022 Avco Corporation. All Rights Reserved Record of Revisions
August 2022 Page i
Field Service Tool User Manual
RECORD OF REVISIONS
Revision
Revision
Date
Revision Description
Original
Original Release of Field Service Tool User Manual & Troubleshooting
Guide - SSP-122
TEO-540-C1A Engine Maintenance Manual
Record of Revisions © 2022 Avco Corporation. All Rights Reserved
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August 2022 Page iii
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SERVICE DOCUMENT LIST
NOTICE: The following is a list of service documents referenced in or incorporated into the
information in this publication. Always refer to the latest revision of any service
document for changes or additional information. Supplements to a service document
contain information relevant to the service document but not yet added to the service
document.
The latest revision of all service documents in this list can be downloaded from our
website https://www.lycoming.com/contact/knowledge-base/publications.
To narrow the search parameters and limit the number of returns, enter only the
numerical portion of the service document number in the Search box on the website.
For example, if you are looking for Service Letter L114BJ, just type in "114".
Number
Incorporation
Date
Subject
S.I. 1573
8/22
Lycoming TEO-540 Engine Series Engine Control Unit
(ECU) Assembly Cross-References
S.L. L114
8/22
Reciprocating Engine and Accessory Maintenance
Publications
TEO-540-C1A Engine Maintenance Manual
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TABLE OF CONTENTS
Section Page
Frontal __________________________________________________________________________
Record of Revisions .............................................................................................................................. i
Service Document List ....................................................................................................................... iii
Table of Contents ................................................................................................................................ v
Introduction ....................................................................................................................................... xii
Field Service Tool User Manual
—Field Service Tool Abbreviations and Acronyms ....................................................................... 1
—System Requirements .................................................................................................................. 3
—Software Installation ................................................................................................................... 5
—ECU to FST Connection ........................................................................................................... 13
—Access the Field Service Tool ................................................................................................... 15
— Start the FST Program .......................................................................................................... 15
— Home Tab ............................................................................................................................. 15
— Displaying ECU Active Data ............................................................................................... 17
— Uploading Fault History....................................................................................................... 18
— Clearing a Fault .................................................................................................................... 19
— Retrieving Data Logger Unit Information ........................................................................... 20
— Data Graphing ...................................................................................................................... 21
— Close the FST Program ........................................................................................................ 24
— Disconnect the ECU and FST .............................................................................................. 24
—Sending Data to Lycoming Technical Support ......................................................................... 25
—Sending Data ........................................................................................................................ 25
—Field Service Tool - Software Problems ................................................................................... 27
— Table 1 - Corrective Action Guide ....................................................................................... 27
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INTRODUCTION
Scope of this Publication
The Field Service Tool (FST) is a diagnostic software loaded on a laptop which is connected by
Controller Area Network (CAN) bus interface to the engine’s Electronic Engine Control System
(EECS). The EECS connects engine hardware with electronic controls to continuously monitor and
automatically adjust operating conditions such as ignition timing, fuel injection timing, and fuel
mixture.
The EECS is made up of:
• Engine Control Unit (ECU) - a dual channel unit which contains system processors, input
signal conditioning, output actuator drive stages, and aircraft communication interfaces. The
ECU monitors and controls engine operation and sends this information to the FST. The ECU
has a unique part number for each engine.
• Power Box - a dual channel unit which supplies regulated primary and secondary power over
to the EECS.
• Data Logger Unit (DLU or ADL) - (optional) a single channel unit that continuously collects
and records engine operating data (data history) and fault codes received from the ECU via
the CAN. The fault codes are used for engine diagnostics. The data history can show trends to
further help with engine diagnostics.
NOTICE: The ECU configuration and part number (P/N) are unique for each engine.
The ECU and POWER BOX are connected by two wiring harnesses, the engine harness and airframe
supplied interface harness. Two channels on the ECU communicate with each other through the
CAN. Each channel has input processing, a microprocessor and output processing which control the
engine independently of each other. Sensors connected to the engine harness send inputs to the ECU
to control the engine through output to the actuators. The actuators also are connected to the ECU by
the same wiring harnesses.
The CAN is the means to transmit data input and output, including fault codes, to and from the ECU
and FST to monitor and control the engine as well as to download data from the optional Data
Logger.
This publication contains instructions to:
• Install the FST software on a computer or laptop (or other display device)
• Operate the FST and associated navigation conventions for using the FST
• Access and display engine data
• Access, display, read, export, and clear engine fault codes
• Reset Time Limited Operation (TLO) and No Take-Off (NTO) indicators in the cockpit
avionics
• Download run time data, trip data, and data history from the Data Logger
• Display runtime data and active data logged by the field service tool
The “Troubleshooting Guide” found in the maintenance manual for each specific engine model,
contains recommended corrective action for the fault codes to remove the root cause which will
ultimately enable the fault code to be cleared. In some instances, multiple related fault codes can
display if they have a common or associated root cause. In these cases, a logic fault tree is given to
help isolate the root cause.
NOTICE: The FST is to be used only during servicing and maintenance and NOT during flight.
TEO-540-C1A Engine Maintenance Manual
List of Tables © 2022 Avco Corporation. All Rights Reserved
Page viii August 2022
Field Service Tool User Manual
Warning, Cautions, and Notices
Be sure to read and obey the Warnings, Cautions and Notices in this publication and in service
documents. Although Lycoming cannot know all possible hazards or damages, it makes a reasonable
effort to supply the best possible guidance and recommended practices for safe operation and
maintenance of its engines.
The table below defines the four types of safety advisory messages used in this publication per the
American National Standard and ANSI Z535-6-2006.
Safety Advisory Conventions
Advisory Word
Definition
DANGER:
Indicates a hazardous situation which, if not avoided, will result
in death or serious injury. This signal word is to be limited to the
most extreme situations.
WARNING
Indicates a hazardous situation which, if not avoided, could
result in death or serious injury.
CAUTION
Indicates a hazardous situation which, if not avoided, could
result in minor or moderate injury. It can also be used without
the safety alert symbol as an alternative to "NOTICE."
NOTICE:
The preferred signal word to address practices not related to
personal injury.
Simplified Technical English
The text in the publication is written in the form of Simplified Technical English in compliance with
FAA requirements and to make translation into other languages easier.
Figures
Figures in this publication are for conceptual illustrative purposes only. Figures always start as
Figure 1 in each chapter.
Copyright
This publication is a copyrighted work. All rights reserved by Lycoming Engines. Content in this
publication cannot be changed or released as a reprint, electronic media output, or web communiqué
without written permission from Lycoming Engines.
Supplemental Service Information
Refer to the latest revision of Service Letter No. L114 for a list of Lycoming publications available
for purchase.
Feedback
To supply comments, suggestions, or corrections to this publication, either call Lycoming Engines
Customer Service at the phone number in the front of this publication or use the Lycoming.com
website.
Publication Revisions
Lycoming Engines constantly examines our publications to provide our customers the most complete
and up-to-date information for operating and maintaining our engines. Revisions to this publication
will be published as necessary.
Table des matières
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