Description
This fuze was designed specifically for use in the PMZ-40 dual-purpose mine.
This fuze is an instantaneous, mechanical, pressure type containing a spring-loaded striker with a ball release. It is made of aluminum alloy and is cylindrical in shape. It measures about 3 1/4 inches in height and 1 1/2 inches in diameter and weighs about 12 ounces. A spring-loaded striker is held by two striker-retaining balls to a hollow plunger, the upper end of which projects through the top of the fuze in the form of a square plunger bolt. A hemispherical, soft sheet-metal head is soldered to the fuze and to the plunger bolt. One horizontal recess and two vertical recesses are provided in the fuze housing for entry of the striker-retaining balls. A metal encased booster charge is screwed on the base of the fuze as a part of the fuze. The fuze has no safety device.
Functioning
Pressure of about 150 pounds on the pressure bolt crushes the soft sheet-metal head, depressing the plunger and striker until the striker-retaining balls release the striker by escaping into the horizontal recess.
Turning the pressure bolt results in the escape of the striker-retaining balls into the vertical recesses, thus releasing the striker.
See Also
Landmine, Multipurpose, PMZ-40
Source(s)
TM 5-280, Foreign Mine Warfare Equipment (chg 1, 1971)
TM 5-223A, Soviet Mine Warfare Equipment (1951)
