have point of copper electrode as near the center of reflector as
possible with carbons as near the center of the chimney holes as you can
set them. Third, have the locomotive on straight track. Now move the
base of the lamp around until you get a parallel beam of white light
straight down the center of the track, then tighten the lamp down.

4. Q. If the light throws shadows upon the track, is it properly
focused?

A. No.

5. Q. If the light is properly focused, that is, if the rays are leaving
the reflector in parallel lines, but the light does not strike the
center of the track, what should be done?

A. When the light rays are thrown out in parallel lines and they do not
strike the center of the track, it denotes that the headlight case is
not set straight with the engine, and the entire case on base board must
be shifted until the shaft of light strikes the track as desired.

6. Q. What can you do to insure a good and unfailing light for the
entire trip?

A. By carefully inspecting the entire equipment before departing on each
trip, and know that there are no wires with insulation charred or worn
off, that all screws and connections are tight, commutator clean and
brushes set in brush holder in proper manner. Carbon in lamp of
sufficient length to complete trip, and that the carbon will feed
through the clutch freely and rests central over the copper electrode.
Copper electrode cleaned off, oil in both bearings and see that steam