Home » Public Forums » GMCnet » [GMCnet] Generator Speed Setting???
[GMCnet] Generator Speed Setting??? [message #132634] |
Wed, 29 June 2011 15:53 |
Arthur Mansfield
Messages: 290 Registered: April 2010
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I changed the pump and cleaned the carb. The generator started right up but would just barely pull both AC's (110V). So I adjusted the leakage. Not knowing how to do it a increase the tension on the spring then adjusted the carb leakage until I had 126 volts as per the manual. Well surprise when I turned on one AC, the voltage went up to 128V (12amps load). I then turned on the second AC an the voltage dropped to 122(25 amps). I then turned on the hot water heater 120V(37 amps). I then adjusted it again. It runs at 121V(12amps), 118V(25amps) and 114V(37amps). Is this about right setting???
I only have a 40 amp breaker so I will not run at 37 amps for more than short times. The 50 amp breaker would not handle 37 amps so I changed it. The generator has been running for 3 hours with a 25 amp load.
Art & Doris
76 EL
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Re: [GMCnet] Generator Speed Setting??? [message #132707 is a reply to message #132634] |
Wed, 29 June 2011 23:32 |
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USAussie
Messages: 15912 Registered: July 2007 Location: Sydney, Australia
Karma: 6
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Art,
Looks good to me, however, I wouldn't worry about running at 37 amps. At 114
volts that works out to 4218 watts, well within the Onan's capability.
However, it might be a good idea to check the Hz too.
Regards,
Rob M.
Sydney, Australia
AUS '75 Avion-The Blue Streak TZE365V100428
USA '75 Avion-Double Trouble TZE365V100426
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of 1104agm
Sent: Thursday, 30 June 2011 6:54 AM
To: gmclist@temp.gmcnet.org
Subject: [GMCnet] Generator Speed Setting???
I only have a 40 amp breaker so I will not run at 37 amps for more than
short times. The 50 amp breaker would not handle 37 amps so I changed it.
The generator has been running for 3 hours with a 25 amp load.
Art & Doris
76 EL
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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Re: [GMCnet] Generator Speed Setting??? [message #132709 is a reply to message #132634] |
Thu, 30 June 2011 00:01 |
Ken Burton
Messages: 10030 Registered: January 2004 Location: Hebron, Indiana
Karma: 10
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I like the first numbers that you had before readjusting it. If 126 is ideal then the closer you are to 126, the better. It will also run fine with the last set of numbers. I'm just a perfectionist. I always adjust them with a frequency meter trying to stay as close to 60 cycle as possible. I believe in an Onan 60 cycle equates to your 126 volt figure.
When we did power checks for large computer systems the spec was was always anything +10% to -5% was OK. Of course in those checks the frequency never varied. The power companies were always right on a 60 cycles.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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Re: [GMCnet] Generator Speed Setting??? [message #132722 is a reply to message #132634] |
Thu, 30 June 2011 05:53 |
g.winger
Messages: 792 Registered: February 2008 Location: Warrenton,Missouri
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One of my meters has a freq. setting. But if you don't have that option,,,,heres how. Find a stop watch and an electric clock with a sweep second hand. Not digital. Start both at the same time while the generator is a runnin. If your sweep second hand goes around once in 60 seconds you're good. If not adjust the speed of the onan. Would be more accurate if you used 2 or 3 min. I've tried it and it works well,,,,,,PL
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Re: [GMCnet] Generator Speed Setting??? [message #132742 is a reply to message #132722] |
Thu, 30 June 2011 08:37 |
Mr ERFisher
Messages: 7117 Registered: August 2005
Karma: 2
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read here,
http://www.gmcmotorhome.info/generator.html#SETTING
could also buy a "Kilowatt meter"
http://goo.gl/bFmla
gene
On Thu, Jun 30, 2011 at 3:53 AM, Paul Leavitt <leavittpaul@yahoo.com> wrote:
>
>
> One of my meters has a freq. setting. But if you don't have that
> option,,,,heres how. Find a stop watch and an electric clock with a sweep
> second hand. Not digital. Start both at the same time while the generator is
> a runnin. If your sweep second hand goes around once in 60 seconds you're
> good. If not adjust the speed of the onan. Would be more accurate if you
> used 2 or 3 min. I've tried it and it works well,,,,,,PL
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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Re: [GMCnet] Generator Speed Setting??? [message #132744 is a reply to message #132742] |
Thu, 30 June 2011 08:39 |
Mr ERFisher
Messages: 7117 Registered: August 2005
Karma: 2
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On Thu, Jun 30, 2011 at 6:37 AM, Mr.erf ERFisher <mr.erfisher@gmail.com>wrote:
> read here,
> http://www.gmcmotorhome.info/generator.html#SETTING
>
> could also buy a "Kil-a-watt meter"
> http://goo.gl/bFmla
>
>
> gene
>
>
> On Thu, Jun 30, 2011 at 3:53 AM, Paul Leavitt <leavittpaul@yahoo.com>wrote:
>
>>
>>
>> One of my meters has a freq. setting. But if you don't have that
>> option,,,,heres how. Find a stop watch and an electric clock with a sweep
>> second hand. Not digital. Start both at the same time while the generator is
>> a runnin. If your sweep second hand goes around once in 60 seconds you're
>> good. If not adjust the speed of the onan. Would be more accurate if you
>> used 2 or 3 min. I've tried it and it works well,,,,,,PL
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
>
>
>
> --
> Gene Fisher -- 74-23,77PB/ore/ca
> “Give a man a fish; you have fed him for today --- give him a URL and
> -------
> http://gmcmotorhome.info/
> Alternator Protection Cable
> http://gmcmotorhome.info/APC.html
>
--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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Re: [GMCnet] Generator Speed Setting??? [message #132921 is a reply to message #132742] |
Thu, 30 June 2011 21:55 |
Arthur Mansfield
Messages: 290 Registered: April 2010
Karma: 0
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well I had a shock today when I started up the generator. I showed 130volts with 12.5 Amps. My house power was off so I ran the generator for 5 hours.
I adjust the spring tension until it read 122 volts and it held for the 10 minutes or so I watched it and it held voltage. About two hours later it was reading 112 volts. I then increased the tension until the voltage was 119 and it stayed that way. My problem is the amount I had to increase the tension was more than I took off when I slowed it down the first time. I guess I need a new spring or is this normal as the spring gets hot it changes. The generator ran for about 5 hours. It was pulled out.
As far as the 37 amps being a problem I only have a 40 amp circuit breaker. The 50 went bad an I replaced it with a 40.
Art & Doris
76 EL
On Jun 30, 2011, at 8:37 AM, Mr.erf ERFisher wrote:
> read here,
> http://www.gmcmotorhome.info/generator.html#SETTING
>
> could also buy a "Kilowatt meter"
> http://goo.gl/bFmla
>
>
> gene
>
> On Thu, Jun 30, 2011 at 3:53 AM, Paul Leavitt <leavittpaul@yahoo.com> wrote:
>
>>
>>
>> One of my meters has a freq. setting. But if you don't have that
>> option,,,,heres how. Find a stop watch and an electric clock with a sweep
>> second hand. Not digital. Start both at the same time while the generator is
>> a runnin. If your sweep second hand goes around once in 60 seconds you're
>> good. If not adjust the speed of the onan. Would be more accurate if you
>> used 2 or 3 min. I've tried it and it works well,,,,,,PL
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
>
>
>
> --
> Gene Fisher -- 74-23,77PB/ore/ca
> “Give a man a fish; you have fed him for today --- give him a URL and
> -------
> http://gmcmotorhome.info/
> Alternator Protection Cable
> http://gmcmotorhome.info/APC.html
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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