TM-9-6015 Aiming Post Lights M14, M41 and M43 Download
Page 11 of 54
Table I. Aiming Post Lights and Associated Aiming Posts Aiming post light Aiming post M14 . . . . . . . M41 . . . . . . . . . . . . M4,M6, M7, M8, M9, and M10. M43 . . . . . . . . . . . Square Aiming Stakes, Chemical Warfare Service. M1 and M1A1. which the unit operates. Each is equipped with a colored filter or filters and incorporates a clamp for mounting on the aiming post. Note. Batteries used in aiming post lights are issued by the Signal Corps. The batteries are not considered as part of the equipment and should not be stored, packed, or shipped in aiming post lights. (1) Figure 4 illustrates the major components of aiming post light M14. The case holds two dry cell batteries similar in type to those used in ordinary flashlights. Each battery enters from opposite ends of the case and is held in position by spring pressure from a cap. The lamp screws into a contact located on the reflector which fits into the case. The window is threaded internally to receive a filter assembly which may be either red or green. The purpose in supplying interchangeable green and red filter is to distinguish between far and near aiming posts during operation. Previously, only one red or green filter was required to make a complete aiming post light. However, this has been changed and future supply of aiming post light M14 will include both a green and red filter. One filter will be mounted in the light and the other included in the aiming post light package. A reflector shade fits over the filter and lamp. During opera- tion, the aiming post light mounts on the aiming post by means of a bracket fixed to the case and the light is turned on or off by means of a toggle switch. (2) Aiming post light M41 (fig. 5) utilizes the same basic major components in its system as the aiming post light M14, with the exception described in paragraph 5. Note that this light utilizes only one dry cell battery and is supplied with one filter only. (3) Aiming post light M43 (fig. 6) is identical in operation to aiming post light M14, described in (1) above. It utilizes the same major components and has the same appearance and construction with the exceptions listed in paragraph 5. Note that this light is provided with a disk which fits between the glass window filter. The disk has a small round hole in its center that provides the sole means for passage of light from the lamp to the filter. 5