Re: (ET) one blade not cutting well

[David C Robie <mycroftxx1 juno com>]

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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