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Onan Generators Restoring, operating and maintaining vintage Onan generators.

Onan Generators

Onan Manuals Repository


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  #31  
Old 07-24-2018, 04:40:47 PM
RichRigert RichRigert is offline
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Default Re: Onan Manuals Repository

Help please. I looked but could not find my wiring diagram.
I have an Onan 15kw single phase diesel generator. Can't get to turn over on run or auto. Hoping somebody knows wiring diagram for it. Thanks Rich
15.ordjc-3cr/1337ab
serial A790385402
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  #32  
Old 07-24-2018, 06:01:57 PM
Max Thompson Max Thompson is offline
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Default Re: Onan Manuals Repository

Your build sheet and wiring diagrams should be attached.

If you need help, please start a thread and include the complete model & ser. numbers as you did here.
Attached Files
File Type: pdf 150 RDJC 3CR 1337AB.pdf (22.1 KB, 18 views)
File Type: pdf 612-5485.pdf (107.3 KB, 15 views)
File Type: pdf 612-5488.pdf (109.9 KB, 12 views)
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  #33  
Old 01-01-2019, 12:11:41 PM
rcossette52 rcossette52 is offline
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Default Re: Onan Manuals Repository

Thank you for the manuals. I just purchased a vintage 35ED powered by a Ford Y block. The voltage is 575 so manuals don't quite cover that part. Possible a special build?

Quote:
Originally Posted by rcossette52 View Post
Onan Model 35ED 9R8/765 S/N 107B574030
How do I determine if wired Delta or Wye?
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  #34  
Old 01-01-2019, 01:21:56 PM
MBB MBB is offline
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Default Re: Onan Manuals Repository

Here is some information on your unit.
Attached Files
File Type: pdf 35ED9R8765.pdf (33.3 KB, 11 views)
File Type: pdf 612-0499.pdf (236.0 KB, 7 views)
File Type: pdf 612-0546.pdf (195.1 KB, 6 views)
File Type: pdf 201ED-3.pdf (67.4 KB, 7 views)
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  #35  
Old 01-01-2019, 10:02:05 PM
MBB MBB is offline
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Default Re: Onan Manuals Repository

rcossette52 Post your own thread and you will get some more information. This thread is about posting manuals. Thanks
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  #36  
Old 01-01-2019, 10:38:49 PM
KPack KPack is offline
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Default Re: Onan Manuals Repository

Try this 926-0003 ED operator manual
https://www.dropbox.com/s/74zkp7kdl6...810ED.pdf?dl=0
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  #37  
Old 01-08-2019, 06:49:31 PM
dapoags dapoags is offline
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Default Re: Onan Manuals Repository

New to the site, We recently received a Onan Generator( w/o any manual) and I've been assigned the job getting it running and servicing. It appears to have been out of service for some time, perhaps not started for 10+ years. see specs below:

From your website it appears the engine is a 1970 CSG 639 (3.9L), I would be very greatfull have if someone could help me with questions

Is there a separate manual or do I use the CSG 649 manual?

How do I refer to the Engine when purchasing parts (eg. Ford F150)?

Are there unique parts?

I would appreciate any advice on getting it up and running again, I plan to flush all the coolant and change oil, plugs, cap, rotor, cables, etc., but want to purchase the correct parts.



Onan
Electric Plant
Model and Spec. No.

30.0EK-15R/9238C
SN: 0670205039
STDBY. KW 30 KVA 37.5
CONT. 25 KVA 31.25
PH 3
PF .3
CY. 60 RPM 1800

Ford Industrial Power Products

Serial is 39982 A-1-HM
Engine Displ 240
Model C5PF -6005-A SO31
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  #38  
Old 01-08-2019, 07:32:20 PM
Max Thompson Max Thompson is offline
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Default Re: Onan Manuals Repository

If you will start a thread with 30 EK in the title and your info below in the body of the thread, you will get all the info you can use (and maybe a little more).

Welcome to The Stak.

30.0EK-15R/9238C
SN: 0670205039
STDBY. KW 30 KVA 37.5
CONT. 25 KVA 31.25
PH 3
PF .3
CY. 60 RPM 1800

Ford Industrial Power Products

Serial is 39982 A-1-HM
Engine Displ 240
Model C5PF -6005-A SO31
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  #39  
Old 02-08-2019, 02:27:42 PM
GeneratorJeff GeneratorJeff is offline
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Default Re: Onan Manuals Repository

Hi guys I'm hunting for a manual online for speed to work on this today if possible but will order one and wait unless someone knows how to scare up a digital copy the service manual for an Onan 90 DYC. Catalog part number for manual is 900-0150. The index referenced on this thread does in fact have the parts and operators manual but not the service manual.

I found the owners manual here already but my tech says he needs the service manual. But just showing you what type it is: http://www.skilledcrafting.com/onanf...20(5-1977).pdf


I've got something funky with it over revving at start up, self killing, then it engages the starter automatically and like 3-4 seconds prematurely before the engine has coasted to a stop. I also know that when my driver working as my proxy tested it before loading it with the seller they had to flash but flashing it was of no effect when we monkeyed with it the other day.

I can post a video elsewhere if someone reading this could diagnose or I will order the service manual if it's not lurking on the web.
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  #40  
Old 02-08-2019, 07:34:10 PM
Zeromedic Zeromedic is offline
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Default Re: Onan Manuals Repository

Hi Jeff,

The 900-0150 manual covers many of the Onan UR gensets, including the DYC

You will find it near the top of any of the archives. Take a look: http://www.skilledcrafting.com/onanfiles/

Since the engine is made by Allis Chalmers not Onan or Cummins you may have to look elsewhere
for an engine service manual. The Onan manual will cover wiring, controls, generator parts.

You can start a new thread with DYC in the subject line if you would like more help.

Steve

on edit: if your AC engine is a 3500 MK II you will also find that manual in the OEM subfolder above.

Last edited by Zeromedic; 02-08-2019 at 07:47:21 PM. Reason: more info
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