TM 9-1375-213-12
assembly, into threaded cap well of each demoli-
2. Remove pellet sleeve cover from fir-
ing mechanism.
tion charge. An alternative method is to connect
3. Unscrew slotted sleeve plug from
blasting cap to charge with a suitable length of
pellet sleeve.
detonating cord.
10. Wire or tie device to demolition
4. Inspect interior of pellet sleeve to in-
sure that safety cotter pin is holding spacer in
charge and make sure diaphragm is free of ob-
place.
structions and is clearly exposed.
5. Depending on delay required, insert
11. Emplace demolition charges.
a blue (3 1/2 minutes) or yellow (7 minutes)
12. Remove pellet sleeve covers from pel-
delay pellet.
let sleeves and start timing.
13. Remove safety cotter pin.
6. Reinstall slotted sleeve plug in pellet
sleeve to secure pellet.
14. Evacuate danger area within 1/2 the
arming time as observed in test ((a) above).
7. Reinstall pellet sleeve cover.
15. Wait full interval of arming time be-
8. Remove base plug (shipping plug).
fore firing initiating charge.
Carefully screw in coupling base and blasting
cap assembly with its associated gasket into fir-
(2) in. air.
ing mechanism to form a watertight joint.
(a) Firing pin release spring test. W h e n
9. Screw concussion detonator, which
concussion detonator is used in air, no salt delay
includes attached coupling base and blasting cap
pellet is used. In this case, when safety cotter
Change 1