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Re: (ET) ET No Go
- Subject: Re: (ET) ET No Go
- From: "SteveS" <ssawtelle fcc net>
- Date: Thu, 7 Feb 2002 11:29:10 -0500
- References: <3C625B12.296.2C09AD@localhost>
- Reply-to: "SteveS" <ssawtelle fcc net>
- Sender: owner-elec-trak cosmos phy tufts edu
Thanks for the suggestions.
I forgot to mention that the motor spins free and quiet, so I discount the
brake and transaxle, so sounds like I should look at the field circuit.
The schematic I have shows a Varistor/Diode assembly. Is that part of the
circuit board behind the control panel that has a bunch of SCRs and diodes
on it? The schematic doesn't show all the other parts on the board, so
maybe
I have a newer or older model.
Guess its time to trace thru the wires.
- Steve
E12
----- Original Message -----
From: "David Roden (Akron OH USA)" <roden ald net>
To: <>
Sent: Thursday, February 07, 2002 10:46 AM
Subject: Re: (ET) ET No Go
> On 6 Feb 2002 at 21:17, SWS wrote:
>
> > - Are the 10 and 49 wires the field connections?
>
> I don't know about the numbers (don't have my manual handy), but the
> smaller-diameter wires going to the motor are the field connections. The
> larger ones are the armature connections.
>
> The symptoms you describe could be caused by an open connection in the
> field circuit. This could be the reversing relay, dirty connections, or
> even an open field in the motor (unlikely).
>
> They could also be caused by a mechanical problem such as locked brakes
> or a seriously munged transaxle.
>
> I recommend obtaining the Homeowner's Service Manual from Bill Gunn. It
> has excellent troubleshooting flowcharts. You'll also need a multimeter
> (analog or digital). You can get a suitable one for $40 or so at Radio
> Shack.
>
>
> David Roden - Akron, Ohio, USA
> 1991 Solectria Force 144vac
> 1991 Ford Escort Green/EV 128vdc
> 1970 GE Elec-trak E15 36vdc
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