l be no
light shown either at the arc or cab lamps, and the carbon point and cab
lights will only show a dull red or go entirely out.

35. Q. How will the equipment act when the circuit is broken, either by
a broken disconnected wire or a burned-out carbon?

A. With a broken circuit the engine will run noiselessly and fast with
very little steam blowing at exhaust and no light will be seen at the
arc or on cab lights.

36. Q. If the insulation on the cab wires is worn off until your two
wires can come together either directly or through the medium of some
metallic substance, what would occur?

A. A short circuit would result that would put out all of your lights.

37. Q. What should be done?

A. Wrap the exposed wire, if you can locate it, with a piece of waste,
or if you cannot locate the short circuit, disconnect one of your cab
wires from the dynamo. This would give you the benefit of the arc lamp
and you can look for the trouble at your leisure.

38. Q. If the light goes out when steam drops back fifteen to twenty
pounds, what is the trouble?

A. Either one of the governor valves is stuck shut, short bushing No. 18
in engine cab is worn badly, allowing wheel to drop away from the
governor stand so steam passes around wheel to exhaust, or governor
springs are too weak.

39. Q. In this case what should be done?

A. Report of the action of the dynamo should be made upon the work book
at the terminal.

40. Q. If clutch rod No. 78-B should break while on the road, what could
be done to get use of the lamp?

A. A piece of wire could be used by fastening one end around the end of
top lever No. 59, the other end being attached to clutch through eye.

41. Q. If you should lose the clothespin holder or top carbon clutch,
what could be done to get the light?

A. Would fasten a wire around the carbon and top holder to keep carbon
in line, being careful not to get the wire either too tight or too
loose.

42. Q. If you should lose the iron armature No. 64 in solenoid, what
could be done to get use of light?

A. Would use a common iron bolt and suspend same by wire in magnet.

43. Q. What would be the result if any of the levers of the lamp should
bind?

A. All levers of the lamp must work absolutely free and must not drag,
for if they are not perfectly free the carbon cannot feed properly.

=Pyle-National Electric Incandescent Headlight=

44. Q. What is meant by an incandescent headlight equipment?