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Re: (ET) Dead sweeper motor, need new one



You may have a short in the armature or a ground to cause that extreme
current.  These motors are "random wound" using standard enamel wire and
any competent local motor shop should be able to take the data from it
and rewind it.  Ask for a quote first as the price may be high.  I'd
estimate 8-10 hours.  A "mom & pop shop" may be willing to do it for
fixed price but expect $200+ for winding and overhaul.

...Walt 

-----Original Message-----
From: elec-trak-bounces cosmos phy tufts edu
[mailto:elec-trak-bounces cosmos phy tufts edu] On Behalf Of RJ Kanary
Sent: Saturday, November 03, 2007 12:36 PM
To: Christopher Zach; Elec-Trak
Subject: Re: (ET) Dead sweeper motor, need new one


          What manner of long thin motor? Like the early mower deck
motors? 
Or like the permanent magnet traction motors, of which there are three
types that I am aware of ?

RJ

----- Original Message -----
From: "Christopher Zach" <cz alembic crystel com>
To: "Elec-Trak" <elec-trak cosmos phy tufts edu>
Sent: Saturday, November 03, 2007 12:15 PM
Subject: (ET) Dead sweeper motor, need new one


> Well, the sweeper motor died this morning, right at the beginning of
> leaf season.
>
> Cause of failure is shorted armature windings. Symptoms are "chugging"
> aand popping the klixon even on the bench. Bypass Klixon and wires
catch
> fire.
>
> Anyway, does anyone have a good long thin motor for sale? Or even
better
> an armature from one that isn't bad.
>
> This makes the third shorted armature I've seen in my years of ET
> ownership; can these be rewound or are they garbage?
>
> Chris
>
> _______________________________________________
> Elec-trak mailing list
> Elec-trak cosmos phy tufts edu
> https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak 


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