Re: (ET) Ghosts

[<diggerdave bigfoot com>]

and what happens if you disconnect the seat switch by pulling the wires 
off?
could it be that the seat switch is bad in such a way that its "trickling 
current"???  probably not but it's quick and easy to eliminate that 
possibility.

dave barden
seattle
e-12s

> Yeah, that's the thought: If one of the relays are stuck, the system 
> might
> be engaging the 1a and 1f/2f--1r/2r contactors (assuming it's an 
> E10/12/20)
> but not engaging the field current.
> 
> Since I don't have the diagrams with me, I am not sure if this is a 
> possible
> thing. Still, I'd say check all the relay points; one might be sticking.
> 
> Chris
> 
> 
> 
> ----- Original Message -----
> From: "David Roden (Akron OH USA)" <roden ald net>
> To: <elec-trak cosmos phy tufts edu>
> Sent: Monday, March 04, 2002 11:40 AM
> Subject: Re: (ET) Ghosts
> 
> 
> > On 4 Mar 2002 at 11:19, Christopher Zach wrote:
> >
> > > Might be the shunt issue I was experiencing on my E20: the field 
> > > current
> is
> > > going to zero, but the armature is being powered at full blast 
> > > somehow.
> >
> > But with the seat switch open?
> >
> > I wonder if the first armature contactor might be stuck.  There's 
> > enough
> > residual field gauss that with the compound series field the tractor 
> > might
> > be able to move.  I haven't looked at the circuit diagram to see if 
> > this
> is
> > possible though.  Now where's that darn Homeowner's Service Manual 
> > when I
> > need it?
> >
> >
> > David Roden - Akron, Ohio, USA
> > 1991 Solectria Force 144vac
> > 1991 Ford Escort Green/EV 128vdc
> > 1970 GE Elec-trak E15 36vdc
> > 1974 Avco New Idea 36vdc
> > = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
> > Thou shalt not send me any thing which says unto thee, "send this to 
> > all
> > thou knowest."  Neither shalt thou send me any spam, lest I smite thee.
> > = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
> >
> >
> 
>