| [GMCnet] Onan Field-assy repair: success [message #217658] |
Sat, 10 August 2013 12:20  |
Jim Miller
Messages: 501
Registered: March 2008
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As many of you know (or have experienced!) the Onan field-coil assemblies seem to be failing at an increasing rate over the past couple of years. Here at the "Miller Compound" we have spent a couple months working on various ways to repair and improve these assemblies.
As of today we have been successful at:
1) re-winding the assembly using copper wire which is mechanically stronger and also has an improved insulation coating compared to the OEM's varnished aluminum
2) keeping the re-wound assembly within the OEM electrical specs so that the original reactor/bridge excitation system can be used
3) eliminating the reactor/bridge excitation system and replacing it with an electronic regulator that has both under/over-voltage and under/over-frequency protection as well as tighter command of output voltage.
I have posted pictures of our project at:
http://www.jcmco.com/gallery/onanfieldassyrepair
We would like to thank all of those in the GMC community who have assisted us in this project.
--Jim Miller
1977 Eleganza II
1977 Royale
Hamilton, OH
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Jim Miller
1977 Eleganza II
1977 Royale
Hamilton, OH
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