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![]() ![]() TM 9-1240-375-34&P
DIRECT SUPPORT AND GENERAL SUPPORT
GENERAL INFORMATION
SCOPE
Type of Manual
Direct and general support maintenance.
Model Numbers and Equipment Names
1.
M17 Fire Control Quadrant/M17A1 Fire Control Quadrant.
2.
M18 Fire Control Quadrant/M18A1 Fire Control Quadrant.
3.
M171 Telescope and Quadrant Mount/M171A1 Telescope and Quadrant Mount.
4.
M172 Telescope and Quadrant Mount/M172A1 Telescope and Quadrant Mount.
5.
M137 Panoramic Telescope/M137A2 Panoramic Telescope/M137A3 Panoramic Telescope.
6.
M138 Elbow Telescope/M138A1 Elbow Telescope.
Purpose of Equipment
1.
M17/M17A1 Quadrant: Measures cannon elevation during one-person operation.
2.
M18/M18A1 Quadrant: Measures cannon elevation during two-person operation.
3.
M171/M171A1 Mount: Provides a mount for the M17/M17A1 quadrant and M137/M137A2/M137A3
telescope.
4.
M172/M172A1 Mount: Provides a mount for the M18/M18A1 quadrant and M138/M138A1 telescope.
5.
M137/M137A2/M137A3 Telescope: Provides a means of measuring horizontal direction in the
indirect fire operation.
6.
M138/M138A1 Telescope: Provides direction in the direct fire operation.
MAINTENANCE FORMS, RECORDS, AND REPORTS
Department of the Army forms and procedures used for equipment maintenance will be those prescribed by
DA PAM 738-750, Functional Users Manual for The Army Maintenance Management System (TAMMS).
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