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how to check generator
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gunz
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PostPosted: Tue Dec 20, 2011 1:06 pm    Post subject: how to check generator Reply with quote

is there a way to check a generator to make sure it works.
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SoCalJes
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PostPosted: Tue Dec 20, 2011 1:11 pm    Post subject: Reply with quote

When you say "Check" do you mean if its operational or the charging capacity?

For operation, a standard volt meter or a 12 or 6 volt drop light depending on your generator and spin it with your hand.

For charging capacity your better off taking to local auto parts where they can check on machine.
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pikeman48
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PostPosted: Tue Dec 20, 2011 2:30 pm    Post subject: Reply with quote

disconnect generator,take belt off,ground the case, and put 12v on the field terminal. A good generator will spin just like a motor. If it does, the generator is good,if it doesn't,it ain't.
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gunz
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PostPosted: Tue Dec 20, 2011 2:54 pm    Post subject: Reply with quote

ok ill try that with the ones i got thanks. Witch one is the field terminal.
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pikeman48
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PostPosted: Tue Dec 20, 2011 3:36 pm    Post subject: Reply with quote

The terminal marked D+ is the output, the terminal marked DF is field.
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if it has wheels or tits,it will make your life difficult!!
1962 type 1-gone,but not forgotten
1971 type 1 vert-sold
sand rail-stripped and scrapped
1968 Empi Sportster
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SoCalJes
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PostPosted: Tue Dec 20, 2011 3:53 pm    Post subject: Reply with quote

Out of cuiosity, could you let me know which direction it spins?
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Jesse
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Altema
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PostPosted: Tue Dec 20, 2011 5:18 pm    Post subject: Reply with quote

SoCalJes wrote:
Out of cuiosity, could you let me know which direction it spins?
Mine spun clockwise (same as normal rotation) when I polarized it.

Paul
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Dale M.
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PostPosted: Tue Dec 20, 2011 5:29 pm    Post subject: Reply with quote

Probably most accurate test of generator AND regulator...

Generator/Regulator Test!

Disconnect all wires from Generator. (tag them so you get them back right)

Connect a test light ( 6 or 12 volt what ever is appropriate) on generator to the "D+" terminal ... Ground other side of light.

Ground "DF" or "Field" on generator.

Start engine... If light comes on and brightness increases as engine rpm comes up your REGULATOR is bad ( generator works ) Caution over revving engine to fast will cause light to burn out.

IF light stays dark ( does not light ) , check test setup again to be sure its right... If you rev engine up and light still does not light GENERATOR is bad.

People with experience using a VOLT-OHM meter could use the meter instead of light... look for VOLTAGE increase..


Dale
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All suggestions and advice are purely my own opinion. You are free to ignore them if you wish ...
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