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Re: (ET) E-15 Reverse relay Arcing
- Subject: Re: (ET) E-15 Reverse relay Arcing
- From: Dave & Debbie Barden <daveb seanet com>
- Date: Fri, 2 May 2003 07:40:32 US/Pacific
- Delivery-date: Fri, 02 May 2003 10:40:58 -0400
- Envelope-to: elec-trak-outgoing cosmos phy tufts edu
- Sender: owner-elec-trak cosmos phy tufts edu
I have an E12 with this same problem. Admittedly still unsolved. after
repairing the relay several times it finally fused together beyond repair.
before putting in the Bill Gunn version ($20) I came across the Hosfelt
catalog
that had some surplus relays of similar specs for $2.00each. I bought 6
(they
were subsequently stolen along with my van but that's another story). I
burned
up one of those before putting in a fuse in line between the relay and the
field. now I just blow fuses but all the time. On the E12 the varistor
($4
from Bill) is behind the lower panel cover jumping the field wires in the
connector. I replaced it. A friend of mine thought putting in a diode to
block the electrical surge of the collasping field when the motor changes
direction would help. It didn't. I suspect in my case something else is
amiss
but I haven't found it yet. good luck with yours!
dave
E12S in Seattle
> - Yep, the schematic shows one. I'm not sure offhand where it is located,
> but I imagine it's on the reverse relay or on a small card nearby.
>
> Also the E12S, E15 manual (Elec-Trak.Org) has reverse relay
> troubleshooting
> and a service bulletin at the very end.
>
>
> >
> > There might be a varistor that goes across the relay to absorb the
> > sparks, or a capacitor. If so I'd bet it's blown.
> >
>
>
>
>