circuit between the cutout and
the generator. (It is also possible that the failure of the generator
to build up was due to poor brush contact in the generator. The use of
the extra wire connected the generator directly to the battery, thus
magnetizing the generator fields and causing generator to build up. If
poor brush contact prevented the generator from building up, closing
the cutout by hand will often cause the generator to start charging.
If you can therefore cause the generator to build up by holding the
cutout points closed by hand, or by shorting across from the generator
terminal to the battery terminal of the cutout, it is probable that
the generator brushes are not making good contact). The cutout may be
tested by stopping the engine, replacing the battery (or ammeter) wire
on the cutout, and holding the end of the extra wire on the generator
terminal of the cutout. If a charging current is then obtained, the
cutout is 0. K. and the trouble is between the cutout and the
generator.

5. An excessive current is obtained. If a third brush generator is
used, look for loose or dirty connections in the charging line, dirty
cutout points, dirty commutator, dirty brushes (especially the brush,
or brushes, which is Dot connected to one end of the field winding),
brushes loose, brushes not well ground in, and any other conditions
which will cause a high resistance in the charging line. It is
characteristic of third brush generators that their current output
increases if there is an increase in resistance in the charging
circuit. If no troubles such as those enumerated above are found, the
third brush may need adjusting.

Generators using vibrating current or voltage regulators will give an
excessive output if the points need adjusting or if the regulating
resistance is short-circuited.

Generators using reversed series regulation will give an excessive
output if there is a short-circuit in the series field coils.

6. Low charging current is obtained. This may be due to adjustment of
the regulating device, to high resistance in the shunt field circuit
in case of a third brush generator. In case of generators using other
kinds of regulation, loose connections, dirty commutator and brushes,
etc., will cause low charging current.

7. Generator charges up to a certain speed and then stops charging.
The trouble is caused by some condition which causes the brushes to
break contact with the commutator, especially in the