Garmin GRA 55 Maintenance Manual - Page 6

TABLE OF CONTENTS 1 INTRODUCTION ...1-1 1.1 Purpose ...1-1 1.2 Scope ...1-1 1.3 Document Control ...1-1 1.4 Permission to Use Certain Documents 1-1 1.5 Definitions ...1-1 1.6 Terminology ...1-2 1.7 Publications ...1-2 1.7.1 Applicability ...1-2 1.7.2 Definition of Abbreviations 1-2 1.7.3 Precautions ...1-2 1.7.4 Units of measurement 1-2 1.7.5 Referenced publications (or their later revisions 1-2 1.7.6 Retention ...1-2 2 SYSTEM DESCRIPTION ...2-1 2.1 Description of Alteration ...2-1 2.2 Block Diagram ...2-1 3 GRA 55/5500 CONTROL AND OPERATION 3-1 3.1 Control, Operating, and Testing Information 3-1 3.2 Downloading and Installing the GRA 55/5500 Retrofit Installation Tool 3-1 3.3 Using the GRA 55/5500 Retrofit Installation Tool 3-2 3.4 Installation Tool Pages ...3-2 3.4.1 Status Page ...3-3 3.4.2 Configuration Page 3-4 3.4.3 Software Page ...3-5 3.4.4 Diagnostics Page ...3-6 3.4.5 Utilities Page ...3-7 3.4.6 Zero-Foot Calibration 3-8 4 INSTRUCTIONS FOR CONTINUED AIRWORTHINESS 4-1 4.1 Servicing Information ...4-1 4.2 Periodic Maintenance ...4-1 4.3 Special Tools ...4-1 4.4 Maintenance Intervals ...4-2 5 TROUBLESHOOTING INFORMATION 5-1 5.1 GRA 55/5500 General Troubleshooting 5-1 6 REMOVAL AND REPLACEMENT INFORMATION 6-1 6.1 Unit Installation ...6-1 6.1.1 Installation Procedure 6-1 6.1.2 Removal Procedure 6-1 6.2 Rack Installation ...6-1 6.2.1 Installation Procedure 6-1 6.2.2 Removal Procedure 6-1 6.3 Antenna Installation ...6-1 190-01277-A3 Rev. 1 System Maintenance Manual GRA 55/5500 Bell 206 STC Page ii