Question about Electrical Supplies
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Posted on Jan 02, 2017
SOURCE: I have an SDMO generating
Set the no load revs such that you get 51 Hz out of the generator, at 80% load this ought to give you something like 48.5 Hz with less than a 3% drop in output voltage. If not, you might have governor problems but I'd try servicing and adjusting it before replacing anything other than filters.
Posted on Dec 07, 2008
SOURCE: 10kw Generac shut down overspeed
Make sure that the throttle linkage is all there and not damaged/misadjusted, then get a manometer and check your inlet gas pressure. Gas pressure should be 8 inches of water column and stay there running or not.
Posted on Apr 06, 2009
I work on these every day. Its either gonna be the rotor or stater, the voltage regulator, but most likely its a bad stepper motor which is the throttle motor, or control board. Thats all that could be causing that so its one of those. If its the rotor or stater thats bad it causes the generator to RPM up because it thinks its not producing enough power due to that. I had the same problem with the same one we just fixed and it was the slip rings on the end of the rotor so bad rotor.
Posted on Jul 09, 2009
Troubleshooting advice above link.
Sometimes it is the head gasket, check, it can be, incorrect fuel mixture, far too lean, exhaust should be a light grey color. Check enough oil in sump. ensure free flow of air all around machine.
Posted on Mar 28, 2010
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