Lycoming IO-390-D Series Maintenance Manual page 26

IO-390-D Series Engine Maintenance Manual
IO-390-D Series Engine Maintenance Manual
For additional publication information, look on Lycoming's website (Lycoming.com) or speak to
Lycoming Engines by telephone: U.S. and Canada toll free: +1(800) 258-3279; or Direct: +1 (570)
323-6181.
Applicable information from Lycoming Engines' Service Bulletins, Service Instructions, and Service
Letters are included in this manual at the time of publication. Any new service information will be
included in the next update of the manual.
Reminder: Unless otherwise specified, Lycoming Engines' service documents (which have a later
date than this manual) override procedures in this manual.
For reference, the Service Document List at the front of this manual shows the editions of the service
documents referenced or included in this manual.
List of Publications
Refer to the latest revision of Service Letter No. L114 for a list of Lycoming Engines' publications.
Environmental Compliance
Lycoming Engines recommends that engine owners and engine service personnel be in compliance
with all federal, state, and local environmental regulations when solvents, paint, fuel, oil, chemicals,
or other consumables are used in engine service.
Simplified Technical English
The text in the manual is written in the form of Simplified Technical English in compliance with
FAA requirements and to make translation into other languages easier.
Format
Chapters in this manual are identified in Air Transport Association (ATA) format.
Figures
Figures in this manual are for illustration purposes only. Figures always start as Figure 1 in each
chapter.
Tables and Checklists
Tables in this manual are used to display detailed information in an organized format. Tables always
start as Table 1 in each chapter. Checklists are used to display a list of tasks to be completed as part
of a specific procedure. Checklists are not numbered because they are used as a reference tool
contained within the procedure.
Copyright
This publication is a copyrighted work. All rights reserved by Lycoming Engines. Content in this
manual cannot be changed or released as a reprint, electronic media output, or web communiqué
without written permission from Lycoming Engines.
Feedback
To supply comments, suggestions, or corrections to this manual, either make a call to customer
service or use the Lycoming.com website.
Manual Revisions
Lycoming Engines constantly examines our manuals to provide our customers the most complete
and up-to-date information for operating and maintaining our engines. Revisions to this manual will
be published as necessary.
Introduction © 2020 Avco Corporation. All Rights Reserved
Page xxiv March 2020