25. S-mine Fuze 35 (S-Minenzünder 35; S.Mi.Z. 35)

a. Description. The s-mine fuze (fig. 29) is an instantaneous, mechanical type, 3 3/4 in-ches long by 3/4 inches in diameter. A round case of aluminum, steel, or bakelite con-tains a spring-loaded striker held by two steel striker-retaining balls and a safety pin. The fuze has a plunger which has three removable pressure prongs projecting from it. This fuze does not have a standard threaded base, since it is designed to be screwed onto the threaded fuze post on the top of an S-mine 35 (par. 85). The percussion cap may be unscrewed from the fuze.

b. Employment. This fuze is the standard German pressure fuze for the anti-personnel S- mine 35. The mine is usually buried with only the tips of the pressure prongs of the fuze above the surface of the ground. This fuze was also often used with other antipersonnel mines, such as the ski mine (par. 107) and the German-adopted Finnish ice mine (par. 101).

c. Functioning.

(1)

With the safety pin removed, pressure of about 15 pounds on the pressure prongs overcomes the restistance in the plunger spring and depresses the plunger.

(2)

This action permits the two striker-retaining balls to be forced outward into the lower space, releasing the spring-loaded striker.

(3)

The released striker, driven by the striker spring, fires the percussion cap and the detonator.

d. Installing and Arming.

(1)

Screw the fuze onto the mine.

(2)

Place the mine in the ground.

(3)

Unscrew the retaining nut from the end of the safety pin and withdraw the safety pin.

e. Neutralizing.

(1)

Insert a nail or wire or the original safety pin in the safety-pin hole.

(2)

Remove the fuze from the mine.

(3)

Unscrew the percussion cap.

f. Packing. Three or six fuzes are packed in a tin box with a descriptive label on the lid.

Note. Before reuse, check the fuze by testing the safety pin to see if it can be with-drawn and look at the percussion cap to see if it has been fired. Do not test the fuze by firing. This fuze cannot be recocked without the aid of special tools.

Figure 29. S-mine fuze 35.