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 5-15 UNPACKING AND INSPECTION — CONTINUED b. Inspection of M712 Projectile Perform the following inspections immediately after the M712 projectile (3) is unpacked from its container (not shown). If an M712 projectile is found to be unserviceable as a result of damage or other defects as described below, repack the M712 projectile in its original container and return to battalion ammunition section. Attach a marking tag (item 38, Appx D) describing the defects. 1 Inspect the window (12) area of the nose cone (13) to make sure that it is clean and that there are no cracks, fogging, indications of moisture on the inside of the window, or other damage. Clean a dirty window using a clean rag (item 35, Appx D) or tissue. Reject an M712 projectile (3) as unserviceable for any of the following reasons. (a) Window (12) cannot be properly cleaned. (b) Window (12) shows signs of fogging or has moisture on the inside. (c) Window (12) is cracked, broken, or badly gouged. 2 Inspect code and time switches (14) for dirt. Numbers and index marks must be legible. Remove dirt using a clean rag (item 35, Appx D). Reject an M712 projectile (3) as unserviceable for any of the following reasons. (a) (b) (c) Missing or broken code and time switch (14) dials. Code and time switch (14) dials cannot be properly cleaned to make numbers and index marks legible. Code and time switches (14) cannot be rotated freely when the firing codes are being set into the M712 projectile (3). Turn code and time switches, using a screwdriver or the tang end of the Ml 8 fuze-setter wrench, to check that code and time switches turn. A click should occur at each number. 3 Reject an M712 projectile (3) as unserviceable if the obturator(15) has a crack or large gouge. 4 Inspect wing slots (16) and fin slots (17) to make sure there is no dirt, debris, or other foreign matter in the wing and fin slots. If debris is found, attempt to clean out the wing and fin slots. Reject as unserviceable if foreign material cannot be removed. 5-85