Generator Problem

[Ralph L. Fullenwider]

One of the relays in the control box should be clicking when you press the
start switch, that is normal. And the relay that is clicking should be the
C relay coil.

At 02:48 AM 7/11/2010 +0000, you wrote:
>So I checked and there is 12.9 volts between the small terminal and the
>large terminal all the time weather the start switch is depressed or not.
>if i go between the small terminal and the second large terminal there is
>no voltage. There are three bosch little boxes in the controll box. some
>of the time when the start switch is depressed, one of them makes a
>clicking sound. I went to napa and bought another one of these, it makes
>the same clicking when start is depressed. Robert
>
>--- In WanderlodgeForum@yahoogroups.com, "Ralph L. Fullenwider"
> wrote:
> >
> > Nah, not over your head yet, your doing fine.
> >
> > Now then we know the battery is ok and the starter is running, now we need
> > to get 12 vdc to the small terminal on the starter solenoid sitting on top
> > of the starter. So place your mater red lead on the terminal and the black
> > on a ground and set the meter to dc volts. Check the voltage on the small
> > terminal when you flip the start switch on the control box, you should see
> > 12 vdc? If you do see 12 vdc then the starter solenoid is suspect, and if
> > you don't see the 12vdc then we trace back to the point of where we lose
> > it, and I will have to go get my schematic for the Yammar.
> >
> > Ralph
> >
> > At 12:36 AM 7/11/2010 +0000, you wrote:
> >
> > >Ralph, so I went back out to check a few things. The starter will not run
> > >at all from any of the switches. The battery is new and 12.9 volts. I
> > >checked at the top of the starter and it is 12.9 there as well. When I
> > >jump across the two large posts on the starter the gen starts and runs as
> > >long as the actuator is held in. When I switch the coaches manual power
> > >switch from 50 amp to gen. there is no power in the coach. I checked the
> > >coolant level and oil level and checked for any disconected wires on
> > >anything ion the engine. There is only a small 10 amp fuse on the control
> > >box and that is okay. The items you listed under further checks I am not
> > >at all familiar with. Am i over my head with this already, or is there
> > >anything I can check? Thanks for your help,
> > >Robert
> > >--- In WanderlodgeForum@yahoogroups.com, "Ralph L. Fullenwider"
> > > wrote:
> > > >
> > > > Hi Robert:
> > > >
> > > > The fuel solenoid is what your holding slightly to run the generator.
> > > There
> > > > are several things that will be the reason for it not to pull in.
> So here
> > > > go a few questions to you;
> > > >
> > > > 1. Is there voltage on the coil of the start relay located on top
> of the
> > > > starter?
> > > > 2. Does the starter actually try to turn the engine over?
> > > > 3. Check the fuse or circuit breaker on the control box?
> > > > 4. Check the coolant fluid level?
> > > > 5. Check the oil level?
> > > > 6. checked to be sure wire did not come off the high water temp
> switch?
> > > and
> > > > grounding some where. or hwt switch failed closed.
> > > > 7. Wire off the oil pressure switch?
> > > > Answering the questions are the first steps to be taken, I write the
> > > checks
> > > > down as I go to keep track of where I have been
> > > >
> > > > Now then, with the engine running, you say there is no output from
> the gen
> > > > set? and does your Coach have a manual or automatic transfer switch?
> > > >
> > > > Further checks;
> > > > 1 As Ernie said, check the state of the gen battery
> > > > 2 check the diode on the curb side down by the oil pressure sender.
> > > > 3 Check the bearing in the end bell, does it move up and down
> greatly with
> > > > a screw driver used as a pry bar?
> > > > 4. Is a wire broken off one or both brushes on the slip rings?
> > > > 5. is the diode and fuse on the quadrature windings ok?
> > > >
> > > > Answer those questions and we can go further
> > > >
> > > > Safe travels,
> > > >
> > > > Ralph and Charolette Fullenwider
> > > > "84FC35 "Ruff Diamond"
> > > > Duncan, Oklahoma
> > > >
> > > > At 09:43 PM 7/10/2010 +0000, you wrote:
> > > > >I am having trouble with the genarator in my 88 pt 40. It is a
> yanmar. I
> > > > >started it and it ran for some time normally then shut off. Now it
> will
> > > > >not start from any of the switches, I just get a clicking noise
> from one
> > > > >of the bosch relays in that little metal box by the gen in the
> foreward
> > > > >compartment. I replaced that and it does the same clicking. I can
> start
> > > > >the genarator by jumping across the starter while holding the throttle
> > > > >solonoid in a bit, but it stopps as soon as I let go. I checked
> and there
> > > > >is no voltage at the solonoid while it is running. Also there is now
> > > power
> > > > >in the bus while the genarator is running. Any ideas?
> > > > >
> > > > >Robert Rahn
> > > > >88 pt 40
> > > > >Kalispell, Mt
> > > > >
> > > > >
> > > > >
> > > >
> > >
> > >
> > >
> > >
> > >------------------------------------
> > >
> > >Yahoo! Groups Links
> > >
> > >
> > >
> > Safe travels,
> >
> > Ralph and Charolette Fullenwider
> > "84FC35 "Ruff Diamond"
> > Duncan, Oklahoma
> >
>
>
>
>
>------------------------------------
>
>Yahoo! Groups Links
>
>
>
Safe travels,

Ralph and Charolette Fullenwider
"84FC35 "Ruff Diamond"
Duncan, Oklahoma