: Ammeter Problem

Dwight Tuttle · Jul 5, 2012

First of all, I want to thank all those who tried to help me last week. Now the real problem. A friend brought his used ammeter and it did not show a charge. We double checked everything. I got an idea. He watched the ammeter and I overrode the governor and increased the engine RPM, a couple of seconds. The ammeter showed a charged. So the generator will only charge at a higher RPM, then a motor that has under a 1000 RPM. I know I can go to a smaller pulley, that I rather not do. If I took the band off, loosen the brush and moved it up, would that solve the problem, or is there something else, I could do, that is better. Dwight in NM

JMOR · Jul 6, 2012

(quoted from post at 23:20:21 07/05/12) First of all, I want to thank all those who tried to help me last week. Now the real problem. A friend brought his used ammeter and it did not show a charge. We double checked everything. I got an idea. He watched the ammeter and I overrode the governor and increased the engine RPM, a couple of seconds. The ammeter showed a charged. So the generator will only charge at a higher RPM, then a motor that has under a 1000 RPM. I know I can go to a smaller pulley, that I rather not do. If I took the band off, loosen the brush and moved it up, would that solve the problem, or is there something else, I could do, that is better. Dwight in NM

n generators, with movable 3rd brush, that is your output current adjustment, sooooo, if yours is too low, adjust it for an increase.

John T · Jul 6, 2012

The faster a generator spins or the more current you pump through its field windings, the more it produces. Therefore, yes a smaller pulley will make it spin faster and/or if its a three brush unit the closer you move the adjustable third brush to the fixed brush beside it, the more field current and more output........

John T
John Ts Troubleshooting

: Ammeter Problem

Dwight Tuttle

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JMOR

Well-known Member

John T

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