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Low voltage out of Genset
08-23-2006, 12:31
Post: #22
Low voltage out of Genset
Alan, All that I know of don't.

"Does anyone else have
one of these 8.0 DKDs that don't pull out?"

Ask, does anyone have a 31, 33, 35 that does?

Aside from that there all (2) squirrel cage fans
for cooling that are back in there somewhere, needing
attention, plus a radiator lying horizontal which
possibly has clogged tubes, and maybe some hose that
should be changed. Bill Pape has blazed the
trail on his '88 which is now in first class
condition.

Personally, I would make the assumption that all
voltages at one time were set up correctly and
that wear didn't cause the voltages to be low,
something failed, or, changed value.

Bob Janes '87FC35 Greenville, SC

--- In WanderlodgeForum@yahoogroups.com, "Alan Johnson"
wrote:
>
> All,
>
>
>
> Here was my latest test. Under the sink going in to the
Generator/Shore/Off
> switch, I found the wire that is apparently directly from the
generator. It
> is only hot when the gen is running and it is hot regardless of how
the
> switch is set. (It is hot when the Generator/Shore/Off switch is
set to
> OFF.) I tested the voltages on those wires with my Fluke
multimeter. With
> the genset running, I get the same results there as I do at the
input side
> of the Main breakers.
>
>
>
> Based on what you guys are telling me, I think these are possibly my
> problems.
>
> 1. Regulator needs to be adjusted. (probably my best case
scenario).
> Manual mentions that, but not much help on where the regulator is,
or how to
> adjust it.
> 2. Circuit board problem (or regulator problem)
> 3. A corroded/faulty neutral right at the generator itself.
>
>
>
> My biggest disappointment when I was looking at this BB, was that
the genset
> is NOT on a tray. :-( .And low, I'm already feeling the pain from
that. I
> can't tell where the power comes out of the genset. Does anyone
else have
> one of these 8.0 DKDs that don't pull out?
>
>
>
> Are there any last suggestions before I take this in for service?
>
>
>
> Thanks,
>
> Alan Johnson
>
> 87FC35
>
>
>
>
>
>
>
> _____
>
> From: WanderlodgeForum@yahoogroups.com
> [mailto:WanderlodgeForum@yahoogroups.com] On Behalf Of John Suter
> Sent: Wednesday, August 23, 2006 1:42 PM
> To: WanderlodgeForum@yahoogroups.com
> Subject: Re: [WanderlodgeForum] Re: Low voltage out of Genset
>
>
>
> Alan,
>
> To Ralph's points (circuit board/regulator issues),
> the fact that the voltage drop appears excessively
> large when using the rear air, I would add the
> possibility of corroded/faulty neutral generator feed
> line. If you are sufficiently, technically,
> electrically-capable, you could run an additional
> temporary/parallel neutral to the rear air from the
> gen using #8 or so, to rule in/out the neutral
> problem. Don't try this if you have the least doubt
> about your capabilities, however.
>
> In your case, the "no load" rise from 108 - 108 to
> 104.5 - 110 under rear air load, is probably not
> significant enough to signal stator/rotor problems;
> Were it 90 - 130 or greater, I might have concern.
>
> Do not allow the rear compressor to run any longer
> than is absolute minimum time necessary to check the
> readings, or damage may result, and avoid any
> microwave or other electronics when 90v or below.
>
> John
>
> --- "Ralph L. Fullenwider" 40swbell.net> net>
> wrote:
>
> > Alan:
> >
> > You have gotten some good advice on this. Do not
> > increase the RMS changing
> > the freq. It sounds like you have corroded
> > connections or weak breakers on
> > the gen set. Start by checking the voltage at the
> > breakers, the input side
> > then the out put. If the voltage drop is not found
> > there, check the
> > connections in the electrical box (should be just
> > inside the gen
> > compartment in the upper corner). Of course the
> > voltage being read at the
> > meters does go through shunts and those reporting
> > wire connections could be
> > corroded as well. With the readings below, your gent
> > set sounds like it is
> > fine. I do remember 2 occasions, after checking the
> > input side of the
> > breakers on the gen set, that the voltage was low
> > there and had to replace
> > the circuit board on one, and the regulator on the
> > other, which took care
> > of the problem in both cases.
> >
> > Safe travels,
> >
> > Ralph and Charolette Fullenwider
> > Ralph's RV Solutions, Duncan, Oklahoma
> > http://home. <http://home.swbell.net/rlf47/index.htm>
> swbell.net/rlf47/index.htm
> >
> > At 04:38 AM 8/23/2006 +0000, you wrote:
> > >Ok, here are my findings so far.
> > >
> > >1. Engine RPMs - right at 1800 (I bought a
> > vibration tach, as
> > >suggested.)
> > >2. Frequency stays right between 59.5 and 60.5
> > whether under heavy
> > >load or not.
> > >
> > > Leg 1 Leg 2
> > > ------ ------
> > >No (very little) load 108v 108v
> > >Front a/c only 104.5 110
> > >Both a/c's on 104 101.5
> > >Rear a/c only 100 91 (a/c
> > compressor is having
> > >trouble running)
> > >
> > >When on shore power I've got right at 120v. On the
> > generator, I'm
> > >obviously low on voltage all the time, but do these
> > different
> > >readings tell you guys anything? Do I just need to
> > up the rpms, or
> > >will that mess up my frequency??
> > >
> > >Thanks!
> > >Alan Johnson
> > >87FC35
> > >
> > >
> > >
> >
> >
>
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>
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Messages In This Thread
Low voltage out of Genset - Alan - 08-21-2006, 16:18
Low voltage out of Genset - Curt Sprenger - 08-22-2006, 03:14
Low voltage out of Genset - Pete Masterson - 08-22-2006, 04:37
Low voltage out of Genset - Wilhelmus Schreurs - 08-22-2006, 05:02
Low voltage out of Genset - one_dusty_hoot - 08-22-2006, 06:47
Low voltage out of Genset - one_dusty_hoot - 08-22-2006, 07:06
Low voltage out of Genset - John Suter - 08-22-2006, 09:58
Low voltage out of Genset - Bruce Morris - 08-22-2006, 15:28
Low voltage out of Genset - one_dusty_hoot - 08-22-2006, 15:39
Low voltage out of Genset - Alan - 08-22-2006, 16:38
Low voltage out of Genset - John Suter - 08-22-2006, 23:20
Low voltage out of Genset - one_dusty_hoot - 08-23-2006, 03:56
Low voltage out of Genset - pattypape - 08-23-2006, 05:18
Low voltage out of Genset - Ralph L. Fullenwider - 08-23-2006, 05:34
Low voltage out of Genset - The Squires - 08-23-2006, 05:36
Low voltage out of Genset - Alan Johnson - 08-23-2006, 06:34
Low voltage out of Genset - John Suter - 08-23-2006, 06:42
Low voltage out of Genset - Stephen Birtles - 08-23-2006, 06:52
Low voltage out of Genset - erniecarpet@... - 08-23-2006, 08:06
Low voltage out of Genset - Alan Johnson - 08-23-2006, 08:31
Low voltage out of Genset - one_dusty_hoot - 08-23-2006, 10:30
Low voltage out of Genset - one_dusty_hoot - 08-23-2006 12:31
Low voltage out of Genset - Gardner Yeaw - 08-23-2006, 12:37
Low voltage out of Genset - Wilhelmus Schreurs - 08-23-2006, 17:58
Low voltage out of Genset - John Suter - 08-24-2006, 03:58
Low voltage out of Genset - Alan Johnson - 08-24-2006, 16:14



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