Thread: Generac 7500
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Fred McKenzie Fred McKenzie is offline
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Default Generac 7500

In article om,
wrote:

Do I need to run the generator to flash the fields? I'm
thinking I disconnect the leads from the volage regulator @ the brushes
so I don't burn it out and take a 12v battery, connect the ground to
the chassis and the positive to one of the brushes for a second and
then do the other brush.


Ellombris-

NO. When the field needs to be flashed there is no output at all. If
there is ANY residual magnetism, there will be output, and almost
instantly it will build up to full value when you start the generator.

Something else is causing your problem.

Could it be the Idle Control switch is set to the "ON" position? That
would give your symptoms until you connect a load to the generator
output. If you connect a light bulb to the generator, does it light to
full brightness, or barely at all?

The diodes that rectify field current are in the module you replaced.
Unless it has an open diode, it is unlikely to be the problem.

When you installed the module, could you have connected the wires to the
brush assembly backwards? According to the Clymer manual, the White
wire connects to the positive brush, which is the one closest to the
bearing.

Fred