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Onan Generators

Very Early military Pe-95 Generator


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  #1  
Old 03-06-2005, 05:13:28 PM
Simon F Simon F is offline
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Default Very Early military Pe-95 Generator

Hello everybody,

I recently aquired from a farm sale a very early PE-95 generator set built by
Onan,when I first set eyes on this unit I thought it was a PE-95 model A,B,
or C, with the Ford ONY sidevalve engine but upon closer inspection the
engine turned out to be a Continental Y91 sidevalve,I thought this strange
as the manual that covers the PE-95 series (TM11-904) makes no mention
of any generators having this engine yet this is factory fitted,not only does
it have a different engine but it is also rated at 240 volts!,the early PE's
were rated at 110 volts and these are not the only differences,the control
panel is completely different from the early PE-95 models along with the skids
which do not have the end crossbars or the air vents on the side of the skids
Does anybody know if this a pre production pilot model,or built to order for
the British, being rated at 240 volts, also does anybody have a manual or
information on this generator as my manuals do not cover it at all, any help
would be greatly appreciated.
P.S. I have several PE-95-G generators,one restored to factory condition
so I might be able to offer advice on restoring/running these.
P.P.S The model of the Onan generator is CWC4-5SA-5
Regards, Simon
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  #2  
Old 03-06-2005, 10:26:25 PM
Rich Mc Rich Mc is offline
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Default Re: Very Early military Pe-95 Generator

From your discription is sounds like it may be a PE-235-A.
60 Hz
5KW@.8PF
120/240
1800RPM
TM 11-972

Rich
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Old 03-08-2005, 03:52:31 PM
Simon F Simon F is offline
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Photo Re: Very Early military Pe-95 Generator

Thanks for the info Rich,here are some pictures to confirm or deny your
I.D on this generator,if it is different from what you thought it was,please
let me know........cheers
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Old 03-08-2005, 09:40:39 PM
Rich Mc Rich Mc is offline
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Default Re: Very Early military Pe-95 Generator

The electrical specs and engine are correct however the chassis is slightly different compared to the only (direct on view of manifold side) picture I have of the PE 235. Among other things; the skids are not as robust and the sides of the control panel enclosure do not extend from bottom to top. Your unit's chassis more resembles the Onan Model WC4-7.5S (with the side panels removed) having the TM 5-5045 which is the Army engineers manual (this unit has a Ford 2NY engine). I suspect that the model listed on your label (CWC-4.5SA-5) will correspond to a similar TM 5-???? manual. The small PE-95 A,B and C with the Ford engine operated at 1200 RPM and I think all other PE-95s had Willys engines @ 1800 RPM.
Keep us Posted Rich
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Old 03-09-2005, 04:53:49 PM
Simon F Simon F is offline
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Default Re: Very Early military Pe-95 Generator

Thanks again Rich For your assistance,as you can see from the photos the
unit does resemble the PE-95-A,B,and C, models built by Onan with the Ford
engine, it seems to me that the generator set could be a pre-production version of the PE-95 (1) series,as with most things like this there is a process of evolution and this can be seen with this generator,if you look at the skid
assembly you will see there are no crossbars on the ends of the skids and no
air vents on the side of the skids, it is possible that they found out the skids
were too flimsy when they tested this unit out in the field and thus the
crossbars were added,the same can be said of the lack of air vents on the
skid assembly again tested in the field ? it was found that the unit did not have
sufficient air circulation to keep it cool ( you learn as you go along ).
As for the control panel,it was probably deemed too complex and was simplified,when they started full scale production of the PE-95 (1) series.
As far as the engine is concerned,there might have been production concerns
due to the fact of increased war production or problems with the engine not
being sufficently powerfull enough ? who knows?, the fact remains that they
did switch over to the Ford ONY sidevalve engine until the PE-95-F came out
which had the more powerful Willys MB-441 engine,as I have said before,it is strange why it is not included in the manual TM11-904 as it is very simular
to the PE-95 (1) series,it might be because it is non standard i.e preproduction model or it has a completly different PE number with its own
seperate manual ,any thoughts on this would be welcome so that I can track
down the correct TM for it, will post some more detailed pictures soon.

Regards,
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Old 03-20-2017, 09:43:51 AM
Arcot1751 Arcot1751 is offline
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Default Re: Very Early military Pe-95 Generator

Hi Simon, I have just bought the exact same model fitted with a Continental Y91 too, did you manage to find out anything about them including how to date them ? David
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