TM 9-1345-203-12
Dual priming.
(c)
Stretch tripwire across a trail or other avenue of
(b)
approach, and securely attach firing device to
two firmly emplaced stakes at a distance of
1 Follow the instructions in (a)1 through 5
approximately 20 meters forward of mine (fig. 2-
above.
12, view B).
2 Make a ring main in accordance with instruc-
(3) For detonation cord procedure:
tions contained in FM 5-250.
NOTE
3 When emplaced one behind the other, the fore-
most mine (nearest enemy) must be fired first.
These components are not provided with the
M18A1 and are requisitioned separately.
f. Simultaneous Firing of More than One Mine.
Dual firing.
(a)
NOTE
1 Obtain two 10-meter (33 ft) lengths of detonat-
Mines may be set up for dual firing and/or dual
ing cord, four non-electric blasting caps M7,
priming, using standard demolition procedures
and two pull-type firing devices.
in FM 5-250.
2 Remove both shipping plug priming adapters
A system for firing simultaneously various numbers of
from mine. Push one end of each piece of det-
mines M18A1 can be set up using materials described below
onating cord through holes in the adapters.
and standard demolitions procedures in FM 5-250.
NOTE
(1) Electrical firing.
Push cord through holes far enough to allow
Materials required.
(a)
blasting caps to be crimped to the cords ends.
1 Cap, blasting: special, electric, M6.
3 Crimp end of each piece of detonating cord to a
blasting cap M7, using cap crimper M2. Pull
2 Blasting machine: M32, 10-cap capacity (or
excess of detonating cord through holes in
blasting machine: 50-cap capacity).
adapters so that blasting caps seat against the
bottom of the adapters.
3 Wire, No. 18 AWG, two-conductor, plastic-
covered or rubber-covered type.
4 Screw shipping plug priming adapters into det-
onator wells. Unwind detonating cord while
4 Wire, No. 20 AG, single conductor.
moving back to safe firing distance.
5 Reel unit RL39A.
5 Emplace mine and detonating cord as
instructed in e(1)(a) to (h) above, and as shown
Procedure. When using 10-cap (or 50-cap)
(b)
in figure 2-12.
capacity blasting machine M32, connect up to 10
(or 50) blasting caps in series, using a maximum
6 Attach a pull-type firing device (refer to FM 5-
of 500 feet of two-conductor, insulated No. 18
250) to free end of each piece of detonating
copper firing cable. Blasting caps M6 will be
cord, and attach a pull-wire or tripwire as
connected to mines M18A1 using shipping plug
instructed in e(1) or (2) above.
priming adapter. Standard demolition proce-
dures in FM 5-250 will be used in making all
electrical connections.
Change 4
2-23
