TM-9-1240-401-34&P Technical Manual for M109 Telescopes and Mounts Download
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TM 9-1240-401-34&P I j. CHECKING CROSS-LEVEL MECHANISM KNOB RUNNING TORQUE 1 With torque wrench (Item 36, appx F) and adapter (8599917) (Item 6, appx F), rotate cross-level mechanism knob (1) one turn clockwise and one turn counteclockwise 2 Measure the torque required to turn cross-level mechanism knob (1). The torque must be between 3 and 6 pound-inches (0.33 and 0.67 N-m). If not, repair according to repair procedure (ref. para 4-13). k. CHECKING ELEVATION CORRECTION KNOB RUNNING TORQUE 1 With torque wrench (Item 36, appx F) and adapter (8599910) (Item 3, appx F), rotate elevation correc- tion knob (1) one turn clockwise and one turn coun- terclockwise. 2 Measure the torque required to turn elevation cor- rection knob (1). The torque must be between 2 and 4 pound-inches (0.23 and 0.45 N-m). If not, notify depot maintenance. l. CHECKING QUADRANT LEVEL KNOB RUNNING TORQUE 1 2 With torque wrench (Item 35, appx F) and adapter (8599910 for M145A1) (Item3, appxF) (8599911 for M145) (Item 4, appx F), rotate quadrant level knob (1) one turn clockwise and one turn counter- clockwise. Measure the torque required to turn quadrant level knob (1). The torque must be between 4 and 10 ounce-inches (0.028 and 0.071 N-m). If not, repair according to repair procedure (ref. para 4-13). 4-59