TM-9-2350-311-10 M109 Operator's Manual for M109A2, M109A3, M109A4 and M109A5 Download
Page 563 of 775
TM 9-2350-311-10 Change 4 5-35 5-2 AUTHORIZED MUNITIONS — CONTINUED 5-2.2 Authorized Fuzes — Continued j. M762 and M767 Series Electronic Time (ET) Fuze NOTE Once activated, the M762 and M767 series fuzes cannot be turned off. Therefore, the fuzes have approximately 15 days service life before the battery runs down and the LCD goes blank. 1 The M762 series fuze (14) and M767 series fuze (15) are powered by a reserve lithium battery. The battery is activated manually by rotating the ogive or remotely via inductive auto-set fire controls or a portable handheld inductive fuze auto-setter. An electronic subassembly contains integrated circuits that provide controls and logic for 199.9 seconds electronic timing and transmit a fire pulse signal for time function. A liquid crystal display (LCD) provides a visual readout of the fuze setting, as follows: (a) The column closest to the base end indicates time in hundreds of seconds (the triangle (◄) position is a nontime setting). The M762A1/M767A1 will have a blank space, a Ø or 1. (b) The second column away from base end indicates time in tens of seconds. (c) The third column away from base end indicates time in seconds. (d) The fourth column (closest to nose end) indicates time in tenths of seconds. 14 15