Re: (ET) one blade not cutting well

[David C Robie <mycroftxx1 juno com>]

Usually one bar to the next, due to a commutator score by foriegn
material (Japan? Taiwan?) getting in (or falling off the interior of) 
the motor.  

Dave
Weymouth MA


On Fri, 28 Jul 2006 08:55:03 -0400 (EDT) Michael S Briggs
<msbriggs alberti unh edu> writes:
> 
> On Wed, 26 Jul 2006, David C Robie wrote:
> 
> > Armatures can short by commutator bars shorting together, 
> mechanical
> > damage.  Seen quite a few.
> 
> Dave,
>       What are the symptoms when that happens? I'd assume that if 
> that 
> happens, the motor wouldn't spin at all - although I guess it would 
> depend 
> on how much of the armature was shorted (i.e. if there's a short 
> across 
> the entire thing vs. partway through the windings).
> 
> Thanks,
> Mike
> 
> 
> 
>