CHANGE No. 105-MM HOWITZER, M101-SERIES, TOWED FM 6-V5, 26 February 1963, is changed as follows: Page 38d is superseded as follows: d. Rarvge Quadrant Adjustment. (1) Öenter the cross-level bubble. (2) Check the angle of site scale. It should read 3(300). If the angle of site scale does not read 3(300), loosen the cwo screws on the scale and move the digit 3 into coincidence with the index. Tighten the screws and reoheck. (3) CheckXthe angle of site micrometer scale. It should read zero and the knob should be locked. If the angle of is not locked with the scale reading zero, see G 8, TM 9-325. (4) With the elevation knob, center the longi- tudinal-level bubbleX (5) Check the elevation scale. It should read zero. If the elevation shale does not read zero, loosen the two screws on the moveable index and slip the index so that it is in Coincidence with the zero.
DesignationFM 6-75
EditionFeb 1963
StatusSuperseded
Pages145
FunctionFires
CollectionHistoric
Public domain (U.S. Government work)