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I have a UST Model GG 1200 portable generator that I manage to get AC side working and need figure out if wiring for the bridge rectifier is right to get the DC side working. I have not been able to find wiring diagram to match colorcoded wiring with right connection on rectifier.

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: I have a UST GG5500 portable generator and it will

Check your circuit breakers to see if they are tripped or damaged. Then take a look in the end of alternator / generator at the field windings. Check for damage to the brushes, as well as the diode for continuity in 1 direction only. Look for damaged capacitor regulator. Replace as needed.

Posted on Jun 12, 2010

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SOURCE: wiring diagram for Generac engine on standby generator

here is a wiring diagram for that engine:

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Posted on Mar 13, 2009

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SOURCE: electrical wiring for kohler engine

Perhaps you would enjoy the entire service manual. Here it is: http://www.asberry.net/files/TP-2379.pdf


Posted on Apr 29, 2009

mamicheddy
  • 79 Answers

SOURCE: DOES ANYONE KNOW ALLGENERATOR WINDING RESISTANCES ?

5 Ohms at the rotor.
Disconnect all the stator wires and measure each one to ground, it should read opened.
Before disconnecting wires, mark which are hot and which are neutral. Measure between the hot neutral wires and some should read at least 0.5 ohms. You should have T1 and T2 reading 0.5 and T3 and T4 reading 0.5. T1 and T3 should read opened, T1 to T4 should read opened. Also, T2 to T3 should be opened and T2 to T4 opened.

Posted on May 07, 2009

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SOURCE: Same Problem, diodes fell out of bridge rectifier assembly

pulling to many amps,diodes could not handle amps so they failed.unit should have kicked its breaker before the diodes burned out.most units have their own breaker to protect the system.I would replace the control board first see how unit reacts,probly fine,if not the you go to next step.

Posted on Jun 27, 2009

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1 Answer

What spark plug is supposed to be in the UST 1200 1200 watt 79.5 CC generator


Pssst! We sell all the parts and spares for UST Generators on our website.

http://www.generatorguru.com/ust/

Need more advice? We have Generator Engineers happy to assist. Contact us, we are always happy to help!
http://www.generatorguru.com/ask-the-guru/

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Thanks for the video!I would expect you to have gotten a detailed instruction sheet, unless maybe this is not a correct replacement part.

The distributor should be able to help you I would think. You may consider returning it if they won't or if you find out it's not the right part for you.

I did a non-OEM replacement & upgrade on a 1972 Honda CB350K3, and I used a full-wave bridge rectifier that I bought at my local Radio Shack.

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GENERALLY, but not always, positive is red, and negative is black.
One easy way to find ground is by measuring between the wire under test and the frame or negative lead of the battery.

You may have to cut wires, and either solder it in directly or attach new connectors.

Any full-wave bridge rectifier has two AC inputs, which are interchangeable with each other. They go to your generator's output.

And you will have a positive output and a negative output, usually at opposite corners from each other.

Here is a schematic for a bridge rectifier:

httpstatic.electrotechonline.comimgcache111583523.jpg
The bridge will be marked, and typically the positive and negative are on opposite corners, and the other two corners are the AC inputs:


square_bridge_rectifier.jpg
Let us know if you need more help.

12_12_2012_12_58_55_am.jpg


12_12_2012_12_59_08_am.jpg

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Same Problem, diodes fell out of bridge rectifier assembly


pulling to many amps,diodes could not handle amps so they failed.unit should have kicked its breaker before the diodes burned out.most units have their own breaker to protect the system.I would replace the control board first see how unit reacts,probly fine,if not the you go to next step.

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