|
This is the modern view of the Yesterday's Tractors Forums. Just login with your YT Userid and password to post. If you have trouble logging in, contact us by email to support at ytmag.com, or through the Reader Form, and we will get you going right away.
| View previous topic :: View next topic |
| Author |
Message |
biggerred
Regular
Joined: 21 Jan 2000
Posts: 468
Report to Moderator
|
 Posted: Fri Jan 13, 2012 7:48 pm Post subject: ONAN Gen Problem |
  |
|
Im working on an Onan Gererator for a machinest frient of mine, he does machine work for me, I do tractor work (or try to anyway) for him. Anyway, he traded for a non running generator, that I've managed to get running, but only as long as you hold in the start switch. Seems to me there should be some type of holding relay to keep it running once it starts, but it won't. There are 2 small relays, one that feeds the coil, and the other one,,,,,?? There no model numbers on the unit so I've included a pic.
|
|
| Back to top |
|
 |
J.T.L.
Regular
Joined: 08 Aug 2010
Posts: 91
Report to Moderator
|
| Posted: Mon Jan 16, 2012 9:42 am Post subject: Re: ONAN Gen Problem |
|
|
You may also be able to get some info from this site.
John
Onan Gen Message Board
|
|
| Back to top |
|
|
JMOR
Tractor Guru
Joined: 13 Aug 2007
Posts: 12666
Report to Moderator
|
| Posted: Thu Jan 19, 2012 6:54 am Post subject: Re: ONAN Gen Problem |
|
|
| biggerred wrote: | (quoted from post at 23:48:55 01/13/12) Im working on an Onan Gererator for a machinest frient of mine, he does machine work for me, I do tractor work (or try to anyway) for him. Anyway, he traded for a non running generator, that I've managed to get running, but only as long as you hold in the start switch. Seems to me there should be some type of holding relay to keep it running once it starts, but it won't. There are 2 small relays, one that feeds the coil, and the other one,,,,,?? There no model numbers on the unit so I've included a pic.
|
Not familiar with that unit, but some Onans kill ign when oil pressure is lost and some look at battery charging generator output to determine that engine is running & use this signal to stop the starter. HTH
|
|
| Back to top |
|
|
REXBEAVERS
Regular
Joined: 22 Oct 2007
Posts: 92
Report to Moderator
|
| Posted: Thu Jan 19, 2012 12:56 pm Post subject: Re: ONAN Gen Problem |
|
|
i just worked on one like the one you are there is a relay in the control panal it should be a clear plastic relay one inch wide by 2 inch long it should have 4 wires that plug in it
|
|
| Back to top |
|
|
Billy Shafer
Tractor Expert
Joined: 24 Apr 2009
Posts: 2313
Report to Moderator
|
| Posted: Sat Jan 21, 2012 1:42 pm Post subject: Re: ONAN Gen Problem |
|
|
Should be a BFA. Look under the band over the brushes. You will find a resistor. If it is open it will run until you let go of the switch. Low oil pressure switch will also do it. But more common was a bad resistor. Look on top of the block for six numbers stamped into the block. That is the serial number. With it I can find out what you have.Also don't run it with the cover off of the head it will over heat. Short runs for testing are ok.
|
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
|
Powered by phpBB © 2001, 2005 phpBB Group
|
|
|
Discount Prices for Parts! You can help support this extensive website by purchasing your tractor parts, manuals and merchandise from our [ Antique Tractor Store ] or call our friendly sales staff toll free (800) 853-2651. [ More Info ]
|
YT Home
| Tractor Manuals
| Tractor Parts
| Forum Home
Copyright © 1997-2013 Yesterday's Tractor Co. - A Washington State Corporation
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
Yesterday's Tractors - Antique Tractor Headquarters
|
|
|
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
