Re: (ET) one blade not cutting well

[Michael S Briggs <msbriggs alberti unh edu>]

Dave - yup, that was actually the first thing I did when I noticed the 
problem - propper the deck up and fired the blades up so I could make sure 
they were spinning the same way.

Mike

--

--------------------------------------------------------------
Michael S. Briggs
UNH Physics Department
(603) 862-2828
---------------------------------------------------------------

On Wed, 26 Jul 2006, David C Robie wrote:

> Current varies widely as to how much work the blade is doing.  She can
> get to 25A
>
> Have you verified that it's turning in the same direction as the others
> yet?
>
> Dave
> Weymouth MA
>
>
> On Wed, 26 Jul 2006 13:03:43 -0400 (EDT) Michael S Briggs
> <msbriggs alberti unh edu> writes:
> > Why not just put an ammeter in series? How much current do these
> > mower
> > deck motors normally pull? As long as it's <10A, I have some nice
> > multimeters that can measure currents up that high. I can just pop
> > the
> > lid, disconnect the leads, and put the multimeter (in ammeter mode)
> > in
> > series with the motor.
> >         Or is the current >10A normally?
> >
> > Thanks,
> > Mike
> >
> > --
> >
> > --------------------------------------------------------------
> > Michael S. Briggs
> > UNH Physics Department
> > (603) 862-2828
> > ---------------------------------------------------------------
> >
> > On Wed, 26 Jul 2006, Klein Robert W NPRI wrote:
> >
> > > You could also remove the top caps from the mower motors and
> > install a shunt on one leg, reading with a generic VOM Meter.
> > > Robert W. Klein II
> > > SSGN Deputy Technical Manager AWS/AWSS
> > > 1176 Howell Street
> > > Newport, RI 02841
> > > Phone: 401-832-1948
> > > Toll Free:  1-800-669-6892 Ext. 21948
> > > FAX:  401-832-7877
> > > e-Mail: kleinrw npt nuwc navy mil
> > >
> > >
> > > -----Original Message-----
> > > From: elec-trak-bounces cosmos phy tufts edu
> > [mailto:elec-trak-bounces cosmos phy tufts edu] On Behalf Of steves
> > > Sent: Tuesday, July 25, 2006 6:43 PM
> > > To: Elec-trak cosmos phy tufts edu
> > > Subject: Re: (ET) one blade not cutting well
> > >
> > >
> > > Most clamp-on meters are AC, but they make AC/DC clamp-ons too.
> > They use
> > > a hall effect probe and are very accurate though you need to set
> > the
> > > zero periodically (like old-time ohmmeters). They are also
> > considerably
> > > more expensive than AC only meters - $80+ (even on ebay). But very
> > handy....
> > > _ SteveS
> > >
> > >
> > > David C Robie wrote:
> > >
> > > > How the heck are you gonna get a clamp on meter to read DC?    I
> > have an
> > > > old fashioned handheld  'generator and starter'  tester that
> > reads the
> > > > magnetic field through a DC wire, but it is not accurate.
> > couldn't
> > > > discern less than 5a or so difference.
> > > >
> > > > Dave
> > > > Weymouth MA
> > >
> > >
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