TM-9-2350-311-20-2
HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5
TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL FOR CAB, ARMAMENT, SIGHTING AND FIRE CONTROL, ELEVATING AND TRAVERSING SYSTEMS AND ASSOCIATED COMPONENTS
DECEMBER 1993
TM-9-2350-311-20-2 - Page 35 of 828
TM 9–2350–311–20–2
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Change 2
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DESTRUCTION OF ARMY MATERIEL TO PREVENT ENEMY USE — CONTINUED
When time is short, a method of destroying the equipment with materiels at hand is as follows:
Retrieve or smash sighting and fire control equipment.
Load cannon with projectile and full powder charge. Attach a 50 foot (15.2 m) or longer lanyard to firing mechanism. Dis-
connect recoil cylinder lines and fire the weapon.
Take a sledgehammer and bend the end of the counter recoil buffer rod.
A second method is to close the breechblock and toss several thermite grenades down the cannon tube. Elevate the can-
non tube so that the grenades will fall against the breechblock. This will melt the breech and the powder chamber, causing
them to fuse together.
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PREPARATION FOR STORAGE OR SHIPMENT
Instructions on proper storage and shipment of the M109 self-propelled howitzer series are covered in Chapter 2, General
Cab Maintenance, of this manual.
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QUALITY ASSURANCE (QA)
No particular quality assurance manual pertains specifically to the M109 howitzer series.
Defective material received through the supply system should be reported on Product Quality Deficiency Report (QDR) SF 368.
Instructions for preparing QDRs are provided in AR 702–7, Reporting of Quality Deficiency Data. QDRs should be mailed di-
rectly to:
Commander
U.S. Army Armament Research, Development and Engineering Center
ATTN: AMSTA–AR–QAW–A (R)/Customer Feedback Center
Rock Island, IL
61299–7300
We will send you a reply.
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OFFICIAL NOMENCLATURE, NAMES, AND DESIGNATIONS
Nomenclature in this manual was chosen in accordance with the terms used for provisioning as they appear in the Repair
Parts and Special Tools List
(TM 9–2350–311–24P–2) and Maintenance Allocation Chart, Appendix B. A few tools and cab
components however are referred to by names more common than those in the RPSTL. In many cases the more common
name is a shorter name for the same component.
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