TM-9-2350-311-10
HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5
TECHNICAL MANUAL; OPERATOR’S MANUAL
NOVEMBER 1994
TM-9-2350-311-10 - Page 613 of 775
TM 9-2350-311-10
Change 4
5-77
5-12
MAINTENANCE — CONTINUED
h.
Excess Explosive Components — Continued
NOTE
Be sure ashes are completely burned.
(g)
When powder is through burning, be sure all flames are extinguished and no smoldering ashes
remain.
i.
Destroying MACS Charge Increments
1
Locate proper burning area. Area should be 164 feet (50 meters) from any combustible material.
2
Ensure proper firefighting equipment and personnel are present.
3
Prepare MACS propelling charge increments for field destruction:
(a)
Peel off both red Mylar covers, exposing igniter end bags.
(b)
Remove igniter bags from charge increment (locate ribbon tying bags together and cut, taking care
not to cut into bags).
(c)
Use one charge increment to make igniter trail. If one increment is cracked, break it open and use
propellant to make igniter trail.
(d)
If no charge increments are cracked, roll one charge increment on the ground, exerting a downward
pressure on the joint of the case base and case body. This should break the joint and the exposed
propellant can be poured out and used to make the igniter trail.
4
Lay out MACS propelling charge increments parallel to wind direction in 12-inch (30.48 centimeters) wide
column (columns of two increments) and lay the removed igniter bag components among the
increments.
5
Lay out an igniter trail at the downwind end of the line of increments by either breaking open one
increment of by suing a cracked or broken increment and making a trail of propellant at 90 degrees to the
increments. The igniter trail should be approximately 16.40 feet (5 meters) long and 2 inches (5.08
meters) wide.
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