a. Description. The Tellermine fuze 42 (fig. 20) is an instantaneous, mechanical type. It consists of a cylindrical steel case containing a spring-loaded striker held by a shear pin through the end of the striker shaft, flush with the top of the fuze case. A percussion cap is built into the base of the fuze. The percussion-cap holder is threaded to receive the detonator. The fuze is 2 inches high and 7/8 of an inch in diameter.

b. Employment. The Tellermine fuze 42 is used in the Tellermine 35 (steel), 42, and 43.

Figure 20. Tellermine fuze 42.

c. Functioning. A pressure of about 495 pounds on the end of the striker shears the shear pin and release the spring-loaded striker against the percussion cap firing the de-tonator.

d. Installing and Arming. Screw the detonator-retaining collar, with the detonator, to the base of the fuze. The fuze has no safeties and is armed once the detonator is attached.

e. Neutralizing. Unscrew the detonator-retaining collar from the base of the fuze and re-move the detonator.

f. Packing. Six fuzes, with detonators attached, are packed in a long cardboard box with a descriptive label pasted on the lid.