TM 9-1375-213-12
reel and tape down the free end. Repack firing
2. Straighten pivot pin(s) if neces-
device in original manner.
sary
f. Misfire Procedure.
3. If necessary, reset switch,
WARNING
4. If a coupling base was used,
MISFIRED FIRING DEVICES ARE
obtain a replacement if necessary (see note).
DANGEROUS
Coupling body may be reused.
EXTREMELY
BECAUSE THE DEVICE'S FIRING
NOTE
PIN OR PRESSURE OR RELEASE
If a coupling base was used, a blasting
PLATE COULD BE JAMMED AND
cap is crimped onto it. This assembly
COULD RELEASE AT THE LEAST
must not be stored with the rest of the
DISTURBANCE.
firing device or with any other type of
(1). In view of the above, the safest thing
quickly reused with a coupling base and
to do with a misfired M142 device with an
blasting cap the assembly may be
attached charge is to place another primed
retained (though stored safely away
charge next to the device's charge and fire it to
destroy the installation.
from other explosive items). If quick
reuse of the coupling base-blasting cap
WARNING
assembly is not anticipated, it should be
DO NOT DISTURB THE FIRING
destroyed. Moisture can enter blasting
D E V I C E WHEN PERFORMING
cap through the imperfect seal created
THE FOLLOWING PROCEDURE.
with coupling base by crimping and
cause a misfire of reuse.
(2) If a time blasting fuse is being used, and
is accessible, carefully cut the fuse being cer-
5. Store blasting cap removed
tain not to disturb the firing device, Move the
from coupling body with other blasting caps if
cut end of the fuse that is attached to the demoli-
reuse with firing device is anticipated.
tion charge, away from the cut end that is
with coupling body will squeeze flare on open
attached to the firing device. Deprime charge
end of cap and may make use with time blast-
ing fuse difficult, therefore it may be locally
and remove. The firing device may now be
destroyed if it is not to be reused with firing
safely disassembled since only the fuse will be
device.
lit if it is accidentally activate.
6. Assure all firing device compo-
(3) Beyond the above, misfires of M142 fir-
nents are present. Roll up tripwire on tests
in devices should be tended to by qualified
EOD personnel.
2-29. General
In addition to the operating procedures for
usual conditions, special instructions for opera-
tion and storage under unusual conditions -
extremes in temperature and weather condition
are to be observed when these conditions are