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Spare fault sp 1 upon start - caterpillar 3516b generator

Posted by Anonymous on

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6ya6ya
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Posted on Jan 02, 2017

rwooley
  • 100 Answers

SOURCE: my problem is voltage fluctuation, after starting generator the voltage is 380v and become 150v then goes up to 410v

I am sure the problem is the adjustment of the voltage regulator.
There are 3or4 small adjustable "pots" on the circuit board of the regulator.
You must connect an analoge volt meter to the output of the generator for this adjustment. Adigital will not work in this case. You will need to adjust the "IR" compensation pot as necessary to stabalize the voltage. This adjustment will surely change the voltage also. As you change the IR you will need to change the voltage too.
Let us know if you need more help.You may need to get the info sheet for your regulator if the pots are not cleasly marked.
Robert

Posted on May 16, 2012

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