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Figure 2-18. Kit with firing circuit taped.
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TM-9-1375-213-12-1 Demolition Materials Demolition Kit Cratering: M180 NSN 1375-00-148-7159 and Training: M270 (Inert) NSN
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Section II. OPERATION OF MATERIEL USED IN CONJUNCTION WITH M180 DEMOLITION KIT
TM 9-1375-213-12-1
pull barrier bag together over all packing mate-
Table 2-1. Operator's Checklist-Continued
rials.
Operation
(5) Press as much air as possible out of barrier
Unpack each demolition circuit and place a plastic
bag tape bag closed.
bag over each rocket motor nozzle.
Connection of demolition circuits:
(6) Close container top and refasten wire loops
a. Insert electrical connector of each demoli-
along edge of container.
tion circuit into mating connector of each M57 fir-
(7) Mark exterior of wooden box to indicate it
ing device.
will be given priority of issue. If original shipping
b. Insert nonelectric blasting cap of each cir-
box is not being used, remark box with complete
cuit into capwell of each shaped charge and secure
with attached priming adapter M1A4.
information normally found on box (Chapter 1).
c. Interconnect the demolition circuits by tap-
ing all detonating cordblasting cap junctions to-
Table 2-1. Operator's Checklist
gether to form an explosive junction.
Connection of rocket motors:
Operation
No.
a. Remove continuity plugs from all interkit
SINGLE KIT
connectors except the fathest kit.
b. Remove firing lead plug from all firing cable
Unpack kit.
1.
Assemble and erect tripod.
connectors except the nearest kit.
2.
c. Starting from the farthest kit, connect the
After assuring that yellow-tagged safety plug is
3.
firing cable connector to the interkit connector of
tightly installed to its connector, unlatch pe-
the next kit.
ripheral clamp on warhead to remove protec-
tive disk and mount rocket motor. Rotate
Remove protective sheath from firing lead. Untwist
rocket motor so that continuity plug and safety
and separate conductors, and connect firing
plug are on top. Latch peripheral clamp to se-
lead to field firing lead.
Remove each yellow-tagged safety plug from rocket
cure motor to warhead.
4.
Lay field firing lead between kit location and firing
motor. Keep all safety plugs and continuity
location. Make splices, as necessary, and then
plugs and proceed to firing location.
check continuity of wire with galvanometers or
Check firing circuit using blasting galvanometers or
Test Set M51.
Test Set M51. Connect circuit to blasting ma-
5.
Unpack demolition circuit and place its plastic bag
chine. Assure firing area is clear, and actuate
machine to fire kits.
over rocket motor nozzle.
Remove protective sheath from firing lead. Untwist
6.
WIDELY SPACED KITS (2 TO 15)
and separate conductors, and connect firing
Determine deployment setup, assuring that there
lead to field firing lead.
is at least 25 feet (7.5 meters) between kits, and
Attach demolition circuit by connecting electrical
7.
mark target points.
connector to M57 firing device and securing
Conduct following operations for each kit:
nonelectric blasting cap in cap well of shaped
a. Unpack kit.
charge and secure with attached priming
b. Assemble and erect tripod.
adapter M1A4.
c. After assuring that a yellow-tagged safety
8.
Assure that continuity plug and firing lead plug
plug is tightly installed to its connector, unlatch
are tightly installed to their connectors.
peripheral clamp on warhead to remove protective
9.
Remove yellow-tagged safety plug from rocket mo-
disk and mount rocket motor. Rotate rocket motor
tor. Keep safety plug and proceed to firing lo-
so that continuity plug and yellow-tagged safety
cation.
plug are on top. Latch peripheral clamp to secure
10.
Check firing circuit using galvanometers or Test Set
motor to warhead.
M51. Connect circuit to blasting machine. As-
Lay field firing lead to the firing location from the
sure firing area is clear, and actuate machine
nearest kit making splices as necessary. Check
to fire kit.
continuity of wire with galvanometers or test
CLOSELY SPACED KITS (2, 3 OR 5)
set M51.
Refer to figure 2-2 to determine deployment setup,
Unpack demolition circuit and place a plastic bag
1.
and mark target points.
over each rocket motor nozzle.
Conduct following operations for each kit:
Attach each demolition circuit to its respective kit
2.
a. Unpack Kit.
by connecting electrical connector to M57 fir-
b. Assemble and erect tripod.
ing device and securing nonelectric blasting
c. After assuring that yellow-tagged safety
cap in cap well of shaped charge and secure
with attached priming adapter M1A4.
plug is tightly installed to its connector, unlatch
Connection of rocket motors:
peripheral clamp on warhead to remove protective
disks and mount rocket motor. Rotate rocket motor
a. Remove continuity plugs from all interkit
so that continuity plug and yellow-tagged safety
connectors except the farthest kit.
plug are on top. Latch peripheral clamp to secure
b. Remove firing lead plug from all firing cable
motor to warhead.
connectors except the nearest kit.
3.
Lay field firing lead to the firing location from the
c. Extend rocket motor firing cables. as nec-
nearest kit, making splices as necessary. Check
essary, by splicing one extension wire to black wire
continuity of wire with galvanometers or Test
of firing cable and the other extension wire to the
Set M51.
blue firing cable wires.
2-24

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