RE: (ET) Re: ET reliability

["Elie, Larry \(L.D.\)" <lelie ford com>]

I'm a bit surprised.  I've reversed an E12S at speed PULLING A TRAILER 
without consequence.  An E15 under similar circumstances fried a board.  
The worst I've done is overheat a thermal switch on the drive motor which 
reset in 10 minutes.  That was disking in D2 for too long.  I've not tried 
an E20/I5 because I don't have one.  I like simple, and even if something 
on an E12S goes, it's not too hard to fix.  BTW, my E12S doesn't even have 
any control boards to corrode or fry like a newer models; it's all relays, 
contactors and wire.  Very robust.

Larry Elie


-----Original Message-----
From: elec-trak-bounces cosmos phy tufts edu
[mailto:elec-trak-bounces cosmos phy tufts edu]On Behalf Of SteveS
Sent: Thursday, November 04, 2004 10:24 AM
To: et
Subject: Re: (ET) Re: ET reliability


My understanding is that an E12S is an E15 without the field-weakening 
throttle positions (not a PM either). So it is a pretty simple machine. 
However, mine does not tolerate reversing without stopping first - the 
reverse relay gets eaten. My E20, on the other hand, seems to tolerate 
indiscriminate reversing pretty well (no problems yet).

- SteveS


David Roden (Akron OH USA) wrote:

>If I'm not mistaken, the later E12 had a PM motor; early production was 
>wound 
>field type.  I was thinking that the later PM model was the E12S, but 
>perhaps 
>not (or perhaps that's not the "S" difference).
>
>
>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
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>If voting changed anything, they'd make it illegal.
>
>                               -- Emma Goldman
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