DEPARTMENT OF THE ARMY TECHNICAL BULLETIN

TB 55-6605-262-24

DEPARTMENT OF THE ARMY TECHNICAL BULLETIN

Calibration, GS Maintenance, and Troubleshooting Instructions

For

Remote Magnetic Heading System (RMHS)

Magnetic Compass

MK 27, Mod 0 Gyrocompass System

MK 27, Mod 1 Gyrocompass System

Headquarters, Department of the Army, Washington, D. C.

26 October 1979

REPORTING ERRORS AND RECOMMENDING IMPROVEMENTS

You can help improve this manual. If you find any mistake or if you know of a way to

improve the procedures,

please let us know.

Mail your letter,

DA Form 2028

(Recommended Changes to Publications and Blank Forms), or DA Form 2028-2 located in

the back of this manual direct to: Commander, U. S. Army Troop Support & Aviation

Materiel Readiness Command, ATTN: DRSTS-MTPS, 4300 Goodfellow Boulevard, St.

Louis, MO 63120. A reply will be furnished directly to you.

Table of Contents

Paragraph

Page

SECTION I. INTRODUCTION

Purpose. ................................................................................

Scope ....................................................................................

II. CALIBRATION OF COMPASS SYSTEMS

Calibration Instructions for Magnetic Compass ......................

Calibration Instructions for RMHS ..........................................

Calibration Instructions for Gyrocompass MK 27, Mod 1, Mod 0

III. GS MAINTENANCE INSTRUCTIONS

Maintenance Instructions for Magnetic Compass .................

Maintenance Instructions for RMHS ......................................

Maintenance Instructions for MK 27, Mod 1 and Mod 0 Gyro-

compasses by General Support Maintenance ........................

Maintenance Instructions for MK 27, Mod 1 and Mod 0 Gyro-

compasses by General Support Maintenance . .....................

IV. TROUBLESHOOTING INSTRUCTIONS

Troubleshooting Instructions for Magnetic Compass ..............

Troubleshooting Instructions for RMHS .................................