Generator Problem

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From: "chaunceyboyblu"

Sender: WanderlodgeForum@yahoogroups.com

Date: Sun, 11 Jul 2010 00:36:55 -0000

To:

ReplyTo: WanderlodgeForum@yahoogroups.com

Subject: [WanderlodgeForum] Re: Generator problem

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%40yahoogroups.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

> >

> >

> >

>