Re: (ET) Lift strap substitute

["SteveS" <ssawtelle fcc net>]

Good point Steve

I did leave out some details ----

The actual culprit was when the mower encountered a (not quite) buried 
brick
which stopped the one motor cold. The motor smoked. I did take it apart
expecting to find a burned out armature. I think what happened is the brush
arced and the 'slag' from the arcing got the the brush caught in the
holder - which probably saved the motor. I don't think the thermal cutout
did anything because it had been damaged previously , though maybe this all
happened too fast to make a difference. I cleaned up the brush and
commutator and it seems to run fine now. We do need to change the brushes
and thermal cutout.

- SteveS


----- Original Message -----
From: "Steven Naugler" <snaugler earthlink net>
To: <>
Sent: Monday, August 18, 2003 11:41 PM
Subject: Re: (ET) Lift strap substitute


> Steve S. and others....
>
> I would not assume your problematic mower deck motor's problem was just a
> stuck brush.  Whenever I've seen brushes stuck in DC or universal motors
> they were stuck because they were worn out.
>
> If brushes are worn out they will bounce and arc.  This will rapidly 
> erode
> your commutator segments.  If you let this happen your armature is scrap.
>
> I'd strongly recommend taking the motor apart and inspecting the brushes.
>
> Steve Naugler
> snaugler earthlink net
>
> ----- Original Message -----
> From: "SteveS" <ssawtelle fcc net>
> To: <Elec-trak cosmos phy tufts edu>
> Sent: Monday, August 18, 2003 3:47 PM
> Subject: (ET) Lift strap substitute
>
>
> > I have my E12S on loan to my sister and I when I was up visting this
> weekend
> > she 'fessed up that she got the lift strap caught up in the mower. The
> mower
> > won.  There wasn't enough left to make a new end, so I went down to the
> > local hardware store to find web strapping and a sewing awl. Being lazy
> and
> > not wanting to sew, I looked around and spied a 4' dog leash hanging up
> that
> > looked like the right material, plus it had a nice 'handle' loop at one
> end
> > and a clip in a small loop in the other end. I realized I had a 'no 
> > sew'
> > fix. I hacksawed the clip off (too bad it was a nice clip) and put the
> > staple through that end. The handle end went to the mower. Only 
> > possible
> > problem is the free end of the handle loop was folded under so at the
sewn
> > part of the loop there were three thickesses of material. I had to turn
> the
> > strap so the 'bump' was down other wise it would catch on the metal
> > cover/support  just behind the lift roller.
> >
> > We are still going to get the right strap but for an emrgency fix, this
> > seems to work - and only $4.50!
> >
> > BTW, it also looked like a motor had blown, but it turned out to be a
> stuck
> > brush.  Phewww!
> >
> > - SteveS
> > E20
> > E12S
> >
> >
> > _______________________________________________
> > Elec-trak mailing list
> > Elec-trak cosmos phy tufts edu
> > https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
>
>
>
> _______________________________________________
> Elec-trak mailing list
> Elec-trak cosmos phy tufts edu
> https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
>