The great guys at Flight Systems were VERY helpful with troubleshooting. Randy was “The Guy” to talk to about the system.
Their diagnostic troubleshooting information is the best and we sure appreciated their help. They have downloads of information and what things to test first, second, third etc. and using a voltmeter, you can diagnose what is wrong with your own generator before paying for costly repairs.
So after checking it all out, we found a shorted brown burnt spot in the control board, and a bubbled area on the voltage regulator. We think that our old batteries with the bad cells and the exploding expanded case on two of them ruined our generator somehow with a back surge of something or other. (we have all new batteries now)
We threw a new control board at it, then a new voltage regulator, then cleaning the slip rings, and replacing the brushes (plus the ceramic holder cracked so had to replace that too) … finally we came to the conclusion that it was only putting out 55 volts and not 120vac. That meant the half of windings on the rotor were bad. Sigh.
So that meant a removal of the generator, and take off the rotor and send it in to be completely rebuilt. We found a great guy down in Ohio, name of :
Okay.. back to the generator--- Now it’s a couple weeks later and we got the rotor rebuilt and back.. and the snow is gone!
All those pics were taken yesterday evening … now it’s Saturday morning and Steve finished up the connections. We attached the propane line, bled it, checked for leaks… double checked all our connections…. and hit the button!
Generator Muffler Replacement:
On day five years ago, when Steve went to start up the generator for a little exercise (plus he wanted to run our vacuum cleaner to do the lower compartment carpeting) it started up with big roar and a backfire BANG! What was up with that? The dogs almost went through the roof!
We shut it down immediately and went out to investigate. Yikes! It blew the back off the rusty muffler----- time for a replacement! Plus, Steve looked at the throttle linkage again which needed more lubricant. It had hung up once in January and he lubed it then, but it was still a little sticky. That is probably what caused the backfire.
Steve called around to various places to see about getting a new muffler, and explored the internet to see if he could find one cheaper. Amazingly, the cheapest place he found, was right from the Onan / Cummins place in DePere, WI (just south of Green Bay)
Next comes the muffler itself. It came with a hanging bracket and muffler clamps. Don't you just LOVE new metal pretty shiny parts????
We set it up into place, clamped on the hanging bracket to where the old one was attached and then added the muffler clamp around the manifold adapter. It was a really snug fit and we are sure it's nice and tight. Last step yet to go, he has to attach a tail pipe. (a section of conduit piping will work just fine) but he has to go buy it today as he was not sure of the length and diameter needed until I brought home the muffler.
Once it was all in place, we started up the generator, with no backfires and no stuck linkage. Wheeeeee!!!! It was very quiet again.
Generator Oil Change:
Every year we take care of our generator with an oil and filter change. We do it every spring, even though we have only put on about 61 hours since last spring when it was done. The little hour gauge inside helps keep track of the time in between changes.
Here is how we do it:
First, we warm up the oil by running it for a while. Then we shut it down and set a bucket underneath by the drain. We write it on the filter with a permanent marker at what hours of usage we are at each time we change it.
Steve unscrewed the petcock to let the old oil drain out into the bucket... It starts running out, but also carefully opening the top fill cap lets it run out even faster. We are careful to not let anything get into the opening, so we replace the cap quickly as soon as the stream into the bucket slows down.
http://kareninthewoods-kareninthewoods.blogspot.com/2011
filter number WIX 51762
or 122--0800 ONAN
Oil change all done, and ready to run again....