Exact adjustment of headlights can be carried out only with use of the special equipment. On
fig. 15.39
the type of the back party of the case of a headlight with the regulators 1 located on it, 4 lights of headlights is given. The stream of light is regulated from above through the openings provided in the top forward cross-piece of a body, by rotation of the corresponding regulators
(fig. 15.40 and 15.41)
.