Figure 4-12. M2 weatherproof fuse igniter

TM 9-1300-277

weather conditions-even under water if it is properly

e. Igniters

waterproofed. A pull on the striker retaining pin causes

the striker to hit the primer, igniting the fuse. A sealing

(1) M2 weatherproof fuse igniter (fig. 4-12).

compound is applied between the fuse and the igniter to

This device is designed as a positive method of lighting

protect the open end of the fuse against moisture.

time blasting fuse. It operates effectively under all

Figure 4-12. M2 weatherproof fuse igniter.

(2) M60 weatherproof fuse igniter (fig. 4-13).

a. Priming adapter M1A4 (fig. 4-15). The M1A4

This device is designed to ignite time blasting fuse in all

priming adapter is used to secure an electric or

sorts of weather conditions and under water. The fuse is

nonelectric blasting cap in the threaded activator well of

inserted through a rubber sealing grommet and into a

a standard demolition charge. The adapter is made of

split collet which clutches the fuse when the end cap on

plastic and is externally threaded at one end so it can be

the igniter is tightened. A pull on the pull ring releases

screwed into the activator well. The bore in the non-

the striker assembly, allowing the firing pin to drive

threaded end is large enough to receive safety fuse or

against the primer, which ignites the fuse.

detonating cord (fig. 5-6). A blasting cap is held in

place by a shoulder formed where the bores meet. A

(3) Squib, electric, M1 (fig. 4-14). The squib

slot along the length of the adapter allows the insertion

is a small explosive initiating device used to ignite

of lead wires of an electric blasting cap.

pyrotechnic or incendiary compositions or black powder

when a source of electricity, such as a blasting machine

or battery, is available.

b. Clip, cord, detonating, M1 (fig. 4-16). The M1

detonating cord clip is a steel device used to hold

4-4. DEMOLITION ACCESSORIES

together two strands of detonating cord either parallel or

at right angles to each other. Connections are made

These accessories perform particular functions

more quickly with these clips than with knots.

in detonation systems or adapt components or charges

for disposal procedures.

Change 2

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