TM-9-1240-400-34&P Technical Manual for M109 Telescopes and Mounts Download
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TM 9-1240-400-34&P CHAPTER 1 INTRODUCTION Section I. GENERAL INFORMATION 1-1. SCOPE. a. Type of Manual. Direct and general support maintenance. b. Model Numbers and Equipment Names: (1) M115 Panoramic Telescope (2) M138 Telescope Mount (3) M137 Telescope Mount (4) M139 Telescope Elbow c. Purpose of Equipment. (1) M115 Panoramic Telescope is used on M11 OA2 self-propelled howitzer for direct or indirect sighting as part of a two-sight, two-man system. (2) M138 Telescope Mount adapts M139 elbow telescope to M110A2 self-propelled howitzer and provides adjustments in elevation and deflection (azimuth). (3) M137 Telescope Mount adapts M115 panoramic telescope to M11 OA2 self-propelled howitzer and provides adjustments in elevation and cant (cross- level). (4) M139 Telescope Elbow is used to lay the M11 OA2 self-propelled howitzer in elevation and deflection for direct fire operation. 1-2. MAINTENANCE FORMS, RECORDS, AND REPORTS. Department of the Army forms and procedures used for equipment maintenance will be prescribed by DA PAM 738-750. The Army Maintenance Management System (TAMMS). 1-3. DESTRUCTION OF ARMY MATERIEL TO PREVENT ENEMY USE. Fire control instruments must be destroyed in a way that same essential parts, on like equipment, cannot be used to construct one complete unit from damaged ones. Refer to TM 750-244-6. 1-4. PREPARATION FOR STORAGE OR SHIPMENT. Administrative storage is restricted to 90 days and must not be extended. Refer to TM 9-2350-304-20-2 and SB 740-95-700, Storage Serviceability Standards for ARRCOM Materiel for Fire Control Items, for detailed instructions on administrative storage. 1-5. OFFICIAL NOMENCLATURE, NAMES, AND DESIGNATIONS. Shortened nomenclature is used in this manual to make procedures easier for you to read. A cross-reference between the shortened nomenclature and its official nomenclature is shown in the following table. Nomenclature Cross-Reference List Manual Official Nomanclature Nomenclature Bracket Angle bracket Cap Air valve cap Setscrew Socket wrench attachment Cover Riveted door Eccentric Control cam Eccentric ring Optical element holder Elevation knob Knob assembly Elevation level Fire control vial tube level 1-1