Re: Mis-marked generator??

Posted by Bob M on October 27, 2008 at 17:46:21 from (74.74.142.17):

In Reply to: Mis-marked generator?? posted by Dr. Bert on October 27, 2008 at 16:11:10:

Dr. Bert - A quick way to determine which generator terminal is which is to use an ohmmeter - either a VOM or DMM:

First disconnect the wiring from both generator terminals. Set the meter to the lowest resistance range, ground/hold one ohmmeter probe to the generator frame then touch the other probe each generator terminal in turn. The terminal reading almost zero resistance (usually 0.1 ohm or less) will be the A (armature). The other terminal will measure between about 1.5 and 4 ohms - it will be the F (field).

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Presuming the C has its original 3 brush generator, maximum current output can be changed by adjusting the 3rd (movable) brush position. The closer the 3rd brush is to the nearest fixed brush the more amps the generator will produce.

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