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Onan Generators

Onan Standby Generator 50 5KW3 phase 19820


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  #11  
Old 06-05-2017, 03:25:19 PM
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Default Re: Onanstandby generator 50 5KW3 phase 19820

Going by the schematic inside my generator it matches the schematic y'all have sent me the reason I ask about controllers wires out I assumed there was a real relay in the transfer switch that told the generator to only excite if it notice no power at the transfer switch
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Old 06-05-2017, 04:58:16 PM
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Default Re: Onanstandby generator 50 5KW3 phase 19820

The transfer switch would only tell it to start and stop. Thru B+and RMT. The power production is all done at the generator. You need to download manual 900-0150. Should be on the twinslan list on this site.
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Old 06-05-2017, 05:16:56 PM
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Default Re: Onanstandby generator 50 5KW3 phase 19820

Thanks Billy Really appreciate your help
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Old 06-05-2017, 09:38:57 PM
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Default Re: Onanstandby generator 50 5KW3 phase 19820

Is exciter breaker on the control panel switched on?
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Old 06-06-2017, 07:46:31 PM
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Default Re: Onanstandby generator 50 5KW3 phase 19820

Thanks for your support and help generators making power I'll change the points today because the old ones were totally burn up does anybody know what the gap sets to on The points it's natural gas how do idol this generator up The governor is working but it won't Riv up to 1800 RPM's and does anybody know what the Dwale should set it on these points
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Old 06-06-2017, 10:23:15 PM
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Default Re: Onanstandby generator 50 5KW3 phase 19820

Since I know it runs and puts out power I replaced the point gotdwell close to what I think to right does anybody know if a regular automotive cool with an external resister will work on my unit does this unit have a resistor built in for the coal somewhere on it or do I need to put a resistor on it I cannot find alternate part number for the does anybody know if a regular automotive cool with external resistor will work on my unit does this unit have a resistor built in for the Coulp somewhere only or do I need to put a resistor on it I cannot find alternate part number for the Coil that come on the ford 460 does the belt driven governor use oilif so what type of role I cannot find a manual on this generator once again thanks for all y'all's help maybe I can help y'all sometime
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Old 06-07-2017, 06:15:42 AM
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Default Re: Onanstandby generator 50 5KW3 phase 19820

I'm attaching the factory production order and wiring diagrams for your generator.

You can download manuals here: http://www.twinslan.net/~n0nas/manuals/onan/

928-0121
900-0150

The wiring diagram does not show an ignition resistor, so you should be able to use a standard 12 volt coil.
Attached Files
File Type: pdf 550EN15R25432D.pdf (31.8 KB, 9 views)
File Type: pdf 612-5301.pdf (148.4 KB, 11 views)
File Type: pdf 612-5311.pdf (143.9 KB, 11 views)
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Old 06-07-2017, 08:02:08 AM
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Default Re: Onanstandby generator 50 5KW3 phase 19820

The engine is a standard Ford 460. With a few things Onan added to make it a generator engine. The gov uses the same oil as the engine.The belt should be a little lose. To tight and you will destroy a 900.00 dollar gov. The service manual will explain all. Be sure and study it before you cost yourself some money.

928-0121 will have the information you need.
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Old 06-17-2017, 11:16:15 PM
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Default Re: Onanstandby generator 50 5KW3 phase 19820

Check my wire in three or four times wired right when I turned excited broke her own shows The voltmeter maxed out votes on the lower scale and trips the exciter breakerevery time with a severe load

---------- Post added at 10:14:22 PM ---------- Previous post was at 10:13:12 PM ----------

Breaker shows

---------- Post added at 10:16:15 PM ---------- Previous post was at 10:14:22 PM ----------

It's like the voltage regulator is not working
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Old 06-17-2017, 11:23:16 PM
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Default Re: Onanstandby generator 50 5KW3 phase 19820

Generally we tell anyone who will listen, to check and fix the set before they rewire it. Now you don't know if it was broken or your wired it wrong.

You can disconnect the windings and then check them with a megger....then re-assemble.
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