29. Friction Fuze SF 6 (Druckzünder SF 6; D.Z. SF 6; also Bossezünder)

a. Description. The friction fuze SF 6 (fig. 34) is an instantaneous, chemical type using friction action to produce a flash. It is housed in a cylindrical plastic case, threaded at the base. A hemispherical aluminum hood containing a chemical compound is crimped to the top of the plastic case. A dome-shaped glass cap encloses the aluminum hood and is held to the plastic case by a rubber seal. There is no safety device. When the fuze is shipped it has a plastic shipping cap screwed onto its base. The fuze is 1 1/4 inches high and 1/2 inch in diameter with the shipping cap attached.

b. Employment. This fuze was developed near the end of World War II for use in the anti-personnel glass mine (par. 97) and in improvised antipersonnel mines, particularly those laid under water along beaches and at fording points in rivers.

c. Functioning. A pressure of about 26 pounds on the glass cap crushes it and the alumi-num hood. This causes the highly sensitive chemical compound  to ignite, creating a flame and firing the detonator.

d. Installing and Arming.

(1)

Unscrew the plastic shipping cap and insert a detonator into the base ot the fuze.

(2)

Screw the fuze into a mine or charge, being careful to exert no pressure on the glass cap.

e. Neutralizing.

(1)

Holding the fuze at the base, unscrew it from the mine or charge.

(2)

Remove the detonator form the fuze.

f. Packing. Twenty-five fuzes are packed in a special container. Four container are pac-ked in a wooden box. The detonators are issued separately.

Figure 34. Friction fuze SF 6.