41. General

The only German fuze to function by either pull, pressure, or tension release is the pull fuze 42 (par. 42). It was adapted from the Soviet MUV fuze described in TM 5-223A.

42. Pull Fuze 42 (Zugzünder 42; Z.Z. 42)

a. Description. The pull fuze 42 (fig. 44) is an instantaneous, mechanical type containing a spring-loaded striker. This fuze has either a bakelite, aluminum, or steel case 3 1/2 in-ches long and 1/2 inch in diameter. The striker is held in the cocked position by a winged striker-retaining pin which passes through the striker shaft, flush with the top of the fuze case. A trip-wire hole for anchoring a trip wire is located at the end of the striker shaft. The base of the fuze is threaded on the outside.

b. Employment. This fuze is used principally in the Schützenmine 42 (par. 92), the bar mine 43 (par 66), and the wooden-box mine 42 (par. 71). Other mines using this fuze are the Sprengriegel 8 kilogram (par. 67), the woodenbox mine V.B. (par. 72), the Schnell-mine A (par. 73), the Finnish ice mine (par. 101), the clay mines (par. 76 and 98), the shell mine (par. 81), the concrete stake mine (par. 87), and certain improvised mines and booby traps. In most of these mines the fuze operates by pressure on the mine lid or on a pressure board which pushes the striker-retaining pin out of the striker shaft of the fuze.

c. Functioning. This fuze will function under any one of the three following initiating for-ces:

(1)

Pressure. Pressure of from 6 to 11 pounds on the wings of the striker- retaining pin pushes the pin out of the striker shaft, releasing the spring-loaded striker against the percussion cap firing the detonator.

(2)

Pull. A pull of from 6 to 11 pounds on a trip wire attached to the trip-wire loop in the striker-retaining pin pulls out the pin and releases the striker against the per-cussion cap firing the detonator.

(3)

Tension release. With the striker-retaining pin removed, cutting or breaking a taut trip wire attached to the trip-wire hole in the striker shaft releases the striker against the percussion cap firing the detonator.

d. Installing and Arming.

(1)

Pressure. Screw the fuze, with detonator, into the mine or charge. The wings of the striker-retaining pin must be horizontal and below the striker shaft.

(2)

Pull. Screw the fuze, with detonator, into the mine or charge, and attach a slack trip wire to a stake or bush and the other end to the loop of the striker-retaining pin.

(3)

Tension release. Screw the fuze, with detonator, into the mine or charge. Attach a taut trip wire to a stake or bush and the other end to the hole in the end of the striker shaft. Then remove the striker-retaining pin with a 50-yard length of wire or rope from a sheltered position.

Note. When the fuze is to be used for pull or tension release, the mine or charge must be securely staked down.

e. Neutralizing.

Figure 44. Pull fuze 42.

(1)

When set for pressure. Unscrew the fuze from the mine, and remove the detonator from the fuze.

(2)

When set for pull. Cut the slack trip wire, unscrew the fuze from the mine, and re-move the detonator from the fuze.

(3)

When set for tension release. First insert a nail or wire into the hole for the striker-retaining pin. Then cut the taut trip wire and remove the detonator from the fuze.