FM 23-45 Basic Field Manual
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of the pintle (upper groove). The pintle latch is spring actuated and is seated in its housing on the
lower right surface of the tripod head.
d. A traversing dial graduated in major divisions of 100 mils and minor subdivisions of 25 mils,
from zero to 6,400 mils in a clockwise direction, is fitted to the tripod head by the flange of the
bronze pintle bushing. This dial is free to rotate but may be clamped in any desired position by the
traversing dial clamp. This clamp is actuated by the knurled head of the traversing dial clamp which
is located under the left lower surface of the tripod head. A zero index engraved on the left rear
quadrant of the pintle is utilized in conjunction with the traversing dial to establish or measure
horizontal angles.
e. The traversing bar provides a rear support for the mounted gun, the traversing block of the
elevating and traversing mechanism mating with the bar. An additional device for measuring or
establishing horizontal angles is incorporated in the scale engraved on the traversing bar. This scale
is divided into 100-mil major divisions and 5-mil minor subdivisions. It has a range of 444.5 mils to
the right and left.
Fig. 15.—Machine gun tripod M2.
