(1) Remove mine and arming wrench from
(2) Inspect mine for serviceability. Check for
cracks, dents, or other signs of damage.
If damaged, replace with new mine. Mark
and return damaged mine to supply.
(3) Using arming wrench M20 if necessary
plug counterclockwise; remove plug from
(4) Examine fuze well for foreign matter. If
present, remove. Water or dirt in fuze
well can result in duds.
(20) Fill in dirt around mine and pat down.
(5) Assure booster retainer is seated in fuze
well. If retainer is missing, replace mine
Because of tolerances permitted in
mine to supply.
manufacture, the pressure plate of
fuze M603 may extend too high,
making it difficult, if not impossible,
to turn knob on arming plug to
until fuze is to be emplaced.
ARMED position. Do not attempt to
force knob but, if necessary,
(6) For buried application, temporarily cover
fuze well with arming plug to keep it free
unscrew arming plug just enough to
of foreign matter. Prepare a hole in
allow knob to be turned freely. Never
ground 15 inches in diameter and 6
point setting knob to (21) Using
wrench M20, arm mine by turning
(7) Check bottom of hole to assure ground is
setting knob with pointer from SAFE
solid and provides firm, flat foundation for
through DANGER to ARMED.
mine to rest on. If ground is soft, mine
may tilt and lose effectiveness. In soft
ground, place board or flat object under
accordance with instructions in FM 20-32.
mine to provide firm foundation.
(23) A pressure of 350-750 pounds on
pressure plate will function the mine.
d. Laying and Aiming Fuze, Mine: M624.
THE M624 FUZE CANNOT BE
DEPLOYED BY THE M57 ANTITANK
MINE DISPENSER OR BY ANY
OTHER MECHANICAL MEANS. THE
DISPENSER WILL INITIATE THE