Re: (ET) wiring diag help needed...

["john briese" <goodguyforsure hotmail com>]

When I installed my Alltrax, I also lost the pto and when I installled it as 
I thought I should it blew a wire.  What is causing the problem for me is 
when the mower motors are not powered. I installed that line thru the 50 amp 
fuse while I trouble shot it.
So far I cannot get that to work, so I disconnected wire 20 and the motors 
now cost to a stop. There must have been a momentary contact for the mower 
motors when shut off, But I cannot figure it out.
If you unhook wire 20 and use the mower it will at least run but it will 
coast to a stop.

John Briese


> From: Jim Coate <jbc coate org>
> Reply-To: jbc coate org
> To: Elec-Trak <elec-trak cosmos phy tufts edu>
> Subject: Re: (ET) wiring diag help needed...
> Date: Sat, 17 Jul 2004 22:01:12 -0400
>
> That's a bummer! I've let that special smoke out of controllers before and 
> it's no fun... normally followed by several minutes of trying to logic my 
> way through what my nose has long since told me.
>
> I was going to ask about how you had it wired, but what you list matches 
> the schematic I have perfectly (page 5-23). The mower motors & PTO should 
> be totally separate circuit from the AllTrax so any shorts or other faults 
> would have no impact. Actually a true short on the PTO should blow the 
> fusible link and just shut everything down.
>
> Hopefully someone else has more insight.
>
>
>
> Dave & Deb wrote:
> > Quick review.  Everything was fine for the morning's work of hauling hay
> > making 8 or 9 300ft trips down the driveway with the hay and back. forward 
> > reverse, full throttle, half throttle, crawl it all worked fine
> > and nothing got hot.  Wired in the PTO and poof! up in smoke.  What could
> > be wrong?  I have wire 2 from the PTO contactor going to the main
> > disconnect, wire 3 & 20 from the PTO contactor going to the plug, wire 24
> > from the plug down to battery negative at the shunt.  Just like the
> > diagram provided with the alltrax and blueprint from Bill Gunn.  So
> > assuming that I did wire it correctly (pretty big assumption and I'll
> > check it again tomorrow when I'm on the farm again) could there be
> > something wrong with one of mower's motors??  shorted out or something????
> >
> > Before I started this conversion this machine did weld the fwd/rev relay
> > contacts frequently.  so frequently that I put in an inline fuse to
> > protect it.  I was hoping to find something to explain that while removing
> > the old wiring and circut card but never did.
> >
> > The previous owner I think had the mower motors rebuilt.  Should I take
> > them in to a shop and have them checked???
> >
> > Any and all suggestions, comments (even wisecracks) would be gratefully
> > rec'd while I cry in my beer.... thanks....
>
>
>
>
> _________
> Jim Coate
> 1970's Elec-Trak
> 1992 Chevy S-10 BEV
> 1997 Chevy S-10 NGV
> http://www.eeevee.com
>
>
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> Elec-trak cosmos phy tufts edu
> https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak

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