TM-9-2350-311-34-1
HULL, POWERPLANT, DRIVE CONTROLS, TRACKS, SUSPENSION, AND ASSOCIATED COMPONENTS: HOWITZER, MEDIUM, SELF-PROPELLED, 155MM
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL
SEPTEMBER 1994
TM-9-2350-311-34-1 - Page 19 of 352
TM 9-2350-311-34-1
SECTION 1. GENERAL INFORMATION
1-1 SCOPE
This manual contains instructions for direct support and general support maintenance of the Ml 09A2/M109A3/M1 09A4/
Ml 09A5 Howitzer’s hull, powerplant, drive controls, tracks, suspension, and other hull-related components.
1-2 MAINTENANCE FORMS, RECORDS, AND REPORTS
Department of the Army forms and procedures used for equipment maintenance will be those prescribed by (as
applicable) DA PAM 738-750, The Army Maintenance Management System (TAMMS); DA PAM 738-751, Functional
Users Manual for The Army Maintenance Management System — Aviation (TAMMS-A); or AR 700-138, Army Logistics
Readiness and Sustainability.
Accidents involving injury to personnel or damage to materiel will be reported on DA Form 285, US Army Accident
Investigation Report, in accordance with AR 385-40. Explosive ammunition malfunctions will be reported in accordance
with AR 75-1.
1-3 DESTRUCTION OF ARMY MATERIEL TO PREVENT ENEMY USE
Destruction of the vehicle, armament, and equipment, when subject to capture or abandonment in a combat zone, will
be undertaken by the using army only when the unit commander decides such action is necessary in accordance with
orders of, or policy established by, the Army commander.
Read TM 750-244-6, Procedures for Destruction of Tank-Automotive Equipment to Prevent Enemy Use, for information
on destruction of all mechanical equipment. In general, destruction of essential components, followed by burning, will
usually be sufficient to render the vehicle, armament, and equipment useless. Time is usually critical.
Materiel must be damaged so that it cannot be restored to usable condition by either repair or cannibalization. If a lack
of time or personnel prevents destruction of all parts, give priority to destruction of parts hardest to replace. It is important
that the same parts be destroyed on all vehicles to prevent construction of one complete vehicle from several damaged
ones.
All items of sighting and fire control instruments and equipment, especially telescopes, gunner's quadrants, and ‘
binoculars, are costly and difficult to replace. They should be conserved whenever possible. If you cannot carry them
with you, destroy them by smashing with your sledgehammer, pick, or mattock. Throw the pieces in all directions.
When time is short, a method of destroying the equipment with materials at hand is as follows:
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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.
1-5
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