TM-9-2350-311-10 M109 Operator's Manual for M109A2, M109A3, M109A4 and M109A5 Download
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TM 9--2350--311--10 Change 6 5--63 5--6 FUZE SETTING — CONTINUED f. Procedure Number 6, M762 and M767 Series Fuzes The M762 or M767 fuzes can be set either by hand or remotely by a weapon equipped with auto-set fire control system, as follows. CAUTION Do not activate M762 or M767 series fuzes unless they will be fired before 15 days elapse. Once activated, M762 or M767 series fuzes have a service life of approximately 15 days, before the battery runs down. Check if LCD is active to determine if M762 or M767 series fuze is still settleable. 1 Setting by hand. CAUTION If, after steps (a) and (b) are completed, the LCD display is blank or shows other displays than indicated, the M762 or M767 series fuze is considered unserviceable and should not be fired. NOTE The M762 or M767 series fuze ogive will rotate only clockwise (as viewed from nose end). If a desired digit was passed, continue rotating clockwise until the desired digit appears again. (a) Rotate ogive clockwise at least one quarter revolution to activate the battery. The liquid crystal display (LCD) window will display The M762A1/M767A1 fuze ogive can be rotated bi--directionally to provide quicker manual setting. The M762A1/M767A1 fuze ogive can be rotated bi--directionally to provide quicker manual setting A88 .8 indicating that all segments are operating as a visual safety check. (b) Depress the thumb operated cocking and selector button to clear the LCD display. The LCD window will display -- -- --. --, ensuring that no segments are stuck. (c) Depress the thumb operated cocking and selector button a second time; the LCD window will display 0 00.0. The cursor under the zero in the hundreds of seconds column indicates that this column is ready to be set. NOTE The hundreds of seconds column can display 0, 1 or A while the tens of seconds, seconds, and tenths of seconds columns each can display 0 through 9. (d) Each column is set independently. Depress and release the thumb operated cock and selector button as required to move the cursor to the desired column. At the desired column, keep the thumb operated cock and selector button depressed and rotate the ogive to select the desired digit or A. Release the thumb operated cock and selector button and depress again to move cursor to the next column to continue setting. (e) For PD, set the M762 or M767 fuze to A 98.0. Any other setting with A would result in a dud. (f) For the M762A1 or M767A1 fuzes, place the cursor in the hundreds digit and rotate the ogive until the _ (underline) is selected. At this point the fuze will be set to point detonating setting and the display will be “_ PD”.