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RE: (ET) E20 Speed 8 broken
Chris and Rhett,
thanks for the replies. The ground fault is what I checked
first as this seemed a likely problem to me as well. While
I have a potential difference between the battery posts
(I think I checked multiple) and the frame, there is virtually
no current flowing between batteries and the frame.
I'll double check these. I had measured the resistor's
resistance (card connector 6 disconnected) and it seemed
ok. I will double check these items though next time I have
some quality time with my E20.
Markus
> -----Original Message-----
> From: elec-trak-bounces cosmos phy tufts edu
> [mailto:elec-trak-bounces cosmos phy tufts edu] On Behalf Of
> Christopher Zach
> Sent: Dienstag, 18. Januar 2005 10:35
> To: Rhett George
> Cc: elec-trak cosmos phy tufts edu
> Subject: Re: (ET) E20 Speed 8 broken
>
>
> Another possibility is a double ground fault. It's quite
> possible that
> one of his wires on the main power has rubbed thru to ground, and the
> tag wire going to FW8 resistor has also gone to ground. Everything is
> great till he hits speed 8, at which time it blows the fuse.
>
> Check to see if there is any voltage between any of the
> battery points
> and the frame when the tractor is running, motor on, speed 5.
>
> Chris
> Rhett George wrote:
> > - Greetings -
> >
> > Marcus Lorch has an E20 which is teasing him with an
> uncommon problem,
> > that of blowing the control section fuse in Speed 8. Here
> are two guesses,
> > best I can do without seeing the tractor. First is that
> the connection
> > from the microswitch to the resistor has shorted to ground
> where it passes
> > from the control box to inside the console. Second guess
> is that the
> > FW resistor has open-circuited.
> >
> > Marcus, please let us know what you find out.
> >
> > Rhett
> >
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