TM-9-2350-311-20-1
HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5
TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL FOR HULL, POWERPLANT, DRIVE CONTROLS, TRACKS, SUSPENSION, AND ASSOCIATED COMPONENTS
AUGUST 1994
TM-9-2350-311-20-1 - Page 20 of 1275
TM 9-2350-311-20-1
1-3 DESTRUCTION OF ARMY MATERIEL TO PREVENT ENEMY USE — CONTINUED
When time is short, a method of destroying the equipment with materials at hand is as follows:
• Retrieve or smash the sighting and fire control equipment.
• Load the cannon with a projectile and a full powder charge. Attach a 50-ft (15.24-m) or longer lanyard to the
firing mechanism. Disconnect all recoil cylinders and fire the weapon.
• Take a sledgehammer and bend the end of the recoil system rods.
A second method is to close the breechblock, elevate the tube, and toss several thermite grenades down the tube.
Elevate the tube so that the grenades will fall against the breechblock. This will melt the breech and the powder chamber,
causing them to fuse together.
1-4 PREPARATION FOR SHIPMENT AND STORAGE
Basic requirements for administrative storage are covered in TM 9-2350-311-20-2.
1-5 QUALITY ASSURANCE (QA)
Not applicable.
1-6 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 (RPSTL) and Maintenance Allocation Chart (MAC) for unit maintenance. A few tools
and hull components are, however, 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.
OFFICIAL PROVISIONING NOMENCLATURE
MORE COMMON NAME
Ammunition rack
Cable
assembly
Gage rod
Intercommunications power harness
Intercommunications system
155mm, medium, self-propelled howitzer
Safety wire or nonelectrical wire
Socket head screw key
Ammo rack
Wiring harness
Dipstick
Intercom wiring harness
Intercom system
Howitzer
Lockwire
Hex key
1-6
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