Home » Public Forums » GMCnet » Onan training tape (troubleshooting the PowerDrawer)
| Onan training tape (troubleshooting the PowerDrawer) [message #345324] |
Mon, 15 July 2019 05:52  |
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RF_Burns
Messages: 2277
Registered: June 2008
Location: S. Ontario, Canada
Karma: 3
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Senior Member |
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Here is a link to an Onan training tape on troubleshooting the PowerDrawer generator. I'm not sure where I saw this link, but I searched here and could not find it. It if was recently posted here, I apologize.
Its a great old video that I have never seen before on how to troubleshoot and set things like governor and carb.
https://www.youtube.com/watch?v=tJcwLyrHMq4
Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that
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| Re: Onan training tape (troubleshooting the PowerDrawer) [message #345332 is a reply to message #345324] |
Mon, 15 July 2019 08:18  |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Great video with a couple errors. The graphic has RMP instead of RPM, and at one point they mention the high speed mixture screw where it seems they should be referring to the low speed mixture screw. They also seem to weight freq over voltage trim whereas today most find the voltage most important to trim for.
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: [GMCnet] Onan training tape (troubleshooting the PowerDrawer) [message #345596 is a reply to message #345595] |
Sun, 21 July 2019 12:24 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Slow down the engin rpm
On Sun, Jul 21, 2019 at 10:17 AM Will via Gmclist
wrote:
> I just used this to tinker with my onan. at 63 hz, i'm 134v. How do you
> reduce voltage, yet maintain frequency?
>
> On Tue, Jul 16, 2019 at 12:38 AM Ken Burton via Gmclist gmclist@list.gmcnet.org> wrote:
>
>> Thanks Matt. I'll remember that if my Onan ever quits.
>> --
>> Ken Burton - N9KB
>> 76 Palm Beach
>> Hebron, Indiana
>>
>> _______________________________________________
>> GMCnet mailing list
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--
Jim Kanomata
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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1-800-752-7502
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| Re: [GMCnet] Onan training tape (troubleshooting the PowerDrawer) [message #345598 is a reply to message #345596] |
Sun, 21 July 2019 12:44 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Do all voltage and frequency testing on ONAN generators with approximately
50% load. If it is close on frequency (50 - 60 hz) and the voltage is under
130 v ac or so, you should be fine. No load checks will always be a bit
higher. No cause for alarm where you presently are.
Jim Hupy
On Sun, Jul 21, 2019, 10:25 AM Jim Kanomata via Gmclist <
gmclist@list.gmcnet.org> wrote:
> Slow down the engin rpm
>
> On Sun, Jul 21, 2019 at 10:17 AM Will via Gmclist >
> wrote:
>
>> I just used this to tinker with my onan. at 63 hz, i'm 134v. How do you
>> reduce voltage, yet maintain frequency?
>>
>> On Tue, Jul 16, 2019 at 12:38 AM Ken Burton via Gmclist > gmclist@list.gmcnet.org> wrote:
>>
>>> Thanks Matt. I'll remember that if my Onan ever quits.
>>> --
>>> Ken Burton - N9KB
>>> 76 Palm Beach
>>> Hebron, Indiana
>>>
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
> --
> Jim Kanomata
> Applied/GMC, Newark,CA
> jimk@appliedairfilters.com
> http://www.appliedgmc.com
> 1-800-752-7502
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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| Re: [GMCnet] Onan training tape (troubleshooting the PowerDrawer) [message #345599 is a reply to message #345333] |
Sun, 21 July 2019 12:47 |
Will Albers
Messages: 183
Registered: November 2017
Location: Detroit MI (Belleville)
Karma: 2
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Senior Member |
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i'm good under load. Its the no load that is a bit high. OK. Thank you.
On Sun, Jul 21, 2019 at 1:43 PM James Hupy via Gmclist <
gmclist@list.gmcnet.org> wrote:
> Do all voltage and frequency testing on ONAN generators with approximately
> 50% load. If it is close on frequency (50 - 60 hz) and the voltage is under
> 130 v ac or so, you should be fine. No load checks will always be a bit
> higher. No cause for alarm where you presently are.
> Jim Hupy
>
> On Sun, Jul 21, 2019, 10:25 AM Jim Kanomata via Gmclist gmclist@list.gmcnet.org> wrote:
>
>> Slow down the engin rpm
>>
>> On Sun, Jul 21, 2019 at 10:17 AM Will via Gmclist gmclist@list.gmcnet.org
>>>
>> wrote:
>>
>>> I just used this to tinker with my onan. at 63 hz, i'm 134v. How do you
>>> reduce voltage, yet maintain frequency?
>>>
>>> On Tue, Jul 16, 2019 at 12:38 AM Ken Burton via Gmclist >> gmclist@list.gmcnet.org> wrote:
>>>
>>>> Thanks Matt. I'll remember that if my Onan ever quits.
>>>> --
>>>> Ken Burton - N9KB
>>>> 76 Palm Beach
>>>> Hebron, Indiana
>>>>
>>>> _______________________________________________
>>>> GMCnet mailing list
>>>> Unsubscribe or Change List Options:
>>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>>>
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>>
>> --
>> Jim Kanomata
>> Applied/GMC, Newark,CA
>> jimk@appliedairfilters.com
>> http://www.appliedgmc.com
>> 1-800-752-7502
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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1978 Palm Beach.
Detroit Michigan
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| Re: [GMCnet] Onan training tape (troubleshooting the PowerDrawer) [message #345600 is a reply to message #345599] |
Sun, 21 July 2019 14:54 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Adjust the Idle jet and the main back and forth little at a time.
On Sun, Jul 21, 2019 at 10:47 AM Will via Gmclist
wrote:
> i'm good under load. Its the no load that is a bit high. OK. Thank you.
>
> On Sun, Jul 21, 2019 at 1:43 PM James Hupy via Gmclist gmclist@list.gmcnet.org> wrote:
>
>> Do all voltage and frequency testing on ONAN generators with
> approximately
>> 50% load. If it is close on frequency (50 - 60 hz) and the voltage is
> under
>> 130 v ac or so, you should be fine. No load checks will always be a bit
>> higher. No cause for alarm where you presently are.
>> Jim Hupy
>>
>> On Sun, Jul 21, 2019, 10:25 AM Jim Kanomata via Gmclist > gmclist@list.gmcnet.org> wrote:
>>
>>> Slow down the engin rpm
>>>
>>> On Sun, Jul 21, 2019 at 10:17 AM Will via Gmclist > gmclist@list.gmcnet.org
>>>>
>>> wrote:
>>>
>>>> I just used this to tinker with my onan. at 63 hz, i'm 134v. How do
> you
>>>> reduce voltage, yet maintain frequency?
>>>>
>>>> On Tue, Jul 16, 2019 at 12:38 AM Ken Burton via Gmclist >>> gmclist@list.gmcnet.org> wrote:
>>>>
>>>> > Thanks Matt. I'll remember that if my Onan ever quits.
>>>> > --
>>>> > Ken Burton - N9KB
>>>> > 76 Palm Beach
>>>> > Hebron, Indiana
>>>> >
>>>> > _______________________________________________
>>>> > GMCnet mailing list
>>>> > Unsubscribe or Change List Options:
>>>> > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>>> >
>>>> _______________________________________________
>>>> GMCnet mailing list
>>>> Unsubscribe or Change List Options:
>>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>>>
>>> --
>>> Jim Kanomata
>>> Applied/GMC, Newark,CA
>>> jimk@appliedairfilters.com
>>> http://www.appliedgmc.com
>>> 1-800-752-7502
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Jim Kanomata
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] Onan training tape (troubleshooting the PowerDrawer) [message #345605 is a reply to message #345603] |
Sun, 21 July 2019 19:21 |
Will Albers
Messages: 183
Registered: November 2017
Location: Detroit MI (Belleville)
Karma: 2
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Senior Member |
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Thanks all. I do the same. The video is slightly misleading in that regard,
giving preference to frequency. I will stick with voltage
On Sun, Jul 21, 2019 at 5:42 PM Emery Stora via Gmclist <
gmclist@list.gmcnet.org> wrote:
> You cannot. Voltage and frequency are directly related to RPM.
>
> I adjust my voltage to 128 v at no load. This gives me about 120 v with
> an aircontioner and mucrowave both running.
>
> Emery Stora
>
>> On Jul 21, 2019, at 11:16 AM, Will via Gmclist
> wrote:
>>
>> I just used this to tinker with my onan. at 63 hz, i'm 134v. How do you
>> reduce voltage, yet maintain frequency?
>>
>> On Tue, Jul 16, 2019 at 12:38 AM Ken Burton via Gmclist > gmclist@list.gmcnet.org> wrote:
>>
>>> Thanks Matt. I'll remember that if my Onan ever quits.
>>> --
>>> Ken Burton - N9KB
>>> 76 Palm Beach
>>> Hebron, Indiana
>>>
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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1978 Palm Beach.
Detroit Michigan
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| Re: [GMCnet] Onan training tape (troubleshooting the PowerDrawer) [message #345606 is a reply to message #345605] |
Sun, 21 July 2019 19:42 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
|
Senior Member |
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Stick your digital volt meter into your household receptacle sometime,
morning, mid afternoon and early evening. I think you will be surprised at
the voltage variation. The frequency stays fairly constant. Some of the
more modern gensets hold voltage and frequency a bit better than the ONAN
from the 70's.
Jim Hupy
Salem, Or
On Sun, Jul 21, 2019, 5:22 PM Will via Gmclist
wrote:
> Thanks all. I do the same. The video is slightly misleading in that regard,
> giving preference to frequency. I will stick with voltage
>
>
> On Sun, Jul 21, 2019 at 5:42 PM Emery Stora via Gmclist gmclist@list.gmcnet.org> wrote:
>
>> You cannot. Voltage and frequency are directly related to RPM.
>>
>> I adjust my voltage to 128 v at no load. This gives me about 120 v with
>> an aircontioner and mucrowave both running.
>>
>> Emery Stora
>>
>>> On Jul 21, 2019, at 11:16 AM, Will via Gmclist gmclist@list.gmcnet.org>
>> wrote:
>>>
>>> I just used this to tinker with my onan. at 63 hz, i'm 134v. How do you
>>> reduce voltage, yet maintain frequency?
>>>
>>> On Tue, Jul 16, 2019 at 12:38 AM Ken Burton via Gmclist >> gmclist@list.gmcnet.org> wrote:
>>>
>>>> Thanks Matt. I'll remember that if my Onan ever quits.
>>>> --
>>>> Ken Burton - N9KB
>>>> 76 Palm Beach
>>>> Hebron, Indiana
>>>>
>>>> _______________________________________________
>>>> GMCnet mailing list
>>>> Unsubscribe or Change List Options:
>>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>>>
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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| Re: [GMCnet] Onan training tape (troubleshooting the PowerDrawer) [message #345607 is a reply to message #345606] |
Sun, 21 July 2019 19:52 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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RV parks power supply vary a lot as they say: Flux you Asians.
Not politically correct, but I don't care.
On Sun, Jul 21, 2019 at 5:41 PM James Hupy via Gmclist <
gmclist@list.gmcnet.org> wrote:
> Stick your digital volt meter into your household receptacle sometime,
> morning, mid afternoon and early evening. I think you will be surprised at
> the voltage variation. The frequency stays fairly constant. Some of the
> more modern gensets hold voltage and frequency a bit better than the ONAN
> from the 70's.
> Jim Hupy
> Salem, Or
>
> On Sun, Jul 21, 2019, 5:22 PM Will via Gmclist
> wrote:
>
>> Thanks all. I do the same. The video is slightly misleading in that
> regard,
>> giving preference to frequency. I will stick with voltage
>>
>>
>> On Sun, Jul 21, 2019 at 5:42 PM Emery Stora via Gmclist > gmclist@list.gmcnet.org> wrote:
>>
>>> You cannot. Voltage and frequency are directly related to RPM.
>>>
>>> I adjust my voltage to 128 v at no load. This gives me about 120 v
> with
>>> an aircontioner and mucrowave both running.
>>>
>>> Emery Stora
>>>
>>>> On Jul 21, 2019, at 11:16 AM, Will via Gmclist > gmclist@list.gmcnet.org>
>>> wrote:
>>>>
>>>> I just used this to tinker with my onan. at 63 hz, i'm 134v. How do
> you
>>>> reduce voltage, yet maintain frequency?
>>>>
>>>> On Tue, Jul 16, 2019 at 12:38 AM Ken Burton via Gmclist >>> gmclist@list.gmcnet.org> wrote:
>>>>
>>>> > Thanks Matt. I'll remember that if my Onan ever quits.
>>>> > --
>>>> > Ken Burton - N9KB
>>>> > 76 Palm Beach
>>>> > Hebron, Indiana
>>>> >
>>>> > _______________________________________________
>>>> > GMCnet mailing list
>>>> > Unsubscribe or Change List Options:
>>>> > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>>> >
>>>> _______________________________________________
>>>> GMCnet mailing list
>>>> Unsubscribe or Change List Options:
>>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>>
>>>
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Jim Kanomata
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] Onan training tape (troubleshooting the PowerDrawer) [message #345608 is a reply to message #345607] |
Sun, 21 July 2019 22:42 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Senior Member |
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jimk wrote on Sun, 21 July 2019 19:52RV parks power supply vary a lot as they say: Flux you Asians.
Not politically correct, but I don't care.
On Sun, Jul 21, 2019 at 5:41 PM James Hupy via Gmclist <
gmclist@list.gmcnet.org> wrote:
> Stick your digital volt meter into your household receptacle sometime,
> morning, mid afternoon and early evening. I think you will be surprised at
> the voltage variation. The frequency stays fairly constant. Some of the
> more modern gensets hold voltage and frequency a bit better than the ONAN
> from the 70's.
> Jim Hupy
> Salem, Or
>
In a previous life I worked in an AC generating station. Frequency was very, very tightly controlled. It had to be so they could stay in sync with all of other generating stations when swapping power back and forth on the grid. There are three grids in the US and Canada. Every station in each independent grid is in perfect sync with all of the others. We were allowed to only drift 1/4 cycle (90 degrees) in one cycle before we had to correct it and make up the lost fractional cycle. All stations are tied to a stratum one clock traceable back to the National Bureau of Standards (WWV)) in Boulder, Co. So 60 cycle is 60 cycle. Swapping power between grids involved converting power to DC, swapping and reconverting back to AC again on the new grid. Private stations like the one I worked in still had to stay in sync so they could receive power or most of the time supply power to the local public utility.
I sure that is more than you ever wanted to know.
Voltage was a different issue and a different (distribution) part of the system. When I worked in the large computing business, the public utility was required to supply power at the specified voltage for the service installed. They were allowed a -5% to +10% tolerance as measured at the customer demarcation point. The tolerance was the same no matter if it was 120, 240, 230, 208, or 440 volt single or three phase service. So 120 volt service was allowed to be 114 to 132 volts AT THE DEMARCATION POINT. Many times I had to stick a recording voltmeter on at some customer site to prove to the utility that they had a problem.
Once inside the demarc point like RV parks and fairgrounds (some of the worse places for power), it becomes the customers problem to resolve.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: Onan training tape (troubleshooting the PowerDrawer) [message #345623 is a reply to message #345324] |
Mon, 22 July 2019 16:54 |
 |
Tom Lins
Messages: 372
Registered: February 2004
Location: St Augustine, FL
Karma: 1
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Senior Member |
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RF_Burns wrote on Mon, 15 July 2019 06:52Here is a link to an Onan training tape on troubleshooting the PowerDrawer generator. I'm not sure where I saw this link, but I searched here and could not find it. It if was recently posted here, I apologize.
Its a great old video that I have never seen before on how to troubleshoot and set things like governor and carb.
https://www.youtube.com/watch?v=tJcwLyrHMq4
If you have a copy of the Data DVD I made. In the videos directory is that Onan video. It is one of the Dealer training videos I converted from the slide shows they used to train the service techs. I guess someone posted it to YouTube.
Tom Lins
St Augustine, FL
77 GM Rear Twin, Dry Bath, 455, Aluminum Radiator Quad-Bag Suspension Solar Panel
Manuals on DVD
YOUTUBE Channel: GMC Dealer Training Tapes
http://www.bdub.net/tomlins/
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