Re: (ET) Help

["MR23 \(Christopher M. Meier, Mpls, MN\)" <mr23 mn rr com>]

Larry, any suggestions for an ET charger when the grid voltage is typically
in the 122-125Vac range?  Or should I just complain to the utility?

-Chris

----- Original Message -----
From: "Elie, Larry (L.D.)" <lelie ford com>
To: <ThompsonG DFO-MPO GC CA>; <elec-trak cosmos phy tufts edu>
Sent: Monday, June 25, 2001 2:49 PM
Subject: RE: (ET) Help


> I've been on vacation, and although I have read many good suggestions,
> I would like to add one.
>
> First off, 39V is too low.  39 is good for mowing 15 minutes.
>
> Second, SEVERAL of the chargers I have got charge to (drum roll!) 39V!
> Why?  Very leaky capacitor on the charger.  To test this theory without
> cost or obligation, lift the charger cover (disconnect switch to OPEN
first
> please) and pull one of the 'fast-tabs' (push connectors) off the cap 
> with
> pliers and wrap it with a few turns of electric tape.  Replace the cover.
> Charge for several hours.  If you have 42V or so the electrolytic was 
> very
> leaky.  Fixing it will use less power from your utility.  Not fixing it
will
> cost you nothing but charging time (i.e., leave the cap disconnected...).
>
> The cap is there to try and match the phase of the current and voltage on
> 110V side.  It's much like a 'motor-run' cap on a electric motor.
>
> Larry Elie
>
>
>
> -----Original Message-----
> From: ThompsonG DFO-MPO GC CA [mailto:ThompsonG DFO-MPO GC CA]
> Sent: Monday, June 18, 2001 10:54 AM
> To: elec-trak cosmos phy tufts edu
> Subject: (ET) Help
>
>
> > Hi
> >
> > I worked all last night on the tractor and I think I've  got big
> problems.
> > Hopefully, you can steer me in the right direction or a least stop
> me from
> > doing something really dump.
> >
> > Here What I've got so far.
> >
> > 1.) The Power level show Green when I turn on the Main Power
> Switch. I've
> > checked the voltage with a meter and I have 36V
> > 2) When I turn on the switch power, and the key, activate the seat
> switch, Both Relays 2RTN and 1RTN
> > close with a nice solid click
> >
> > Then it get's bad
> >
> > When I push the seat switch the Power Use meter goes into the
> yellow.
> > Then when I move the speed controller to forward or reverse 2RTN
> OPENS and > the Power Use meter goes even further into the Yellow.
> >
> > I tried this with the motor armature power wires (the big heavy
> black wire
> > on the brass studs) disconnected from the motor and got the same
> response.
> > But if I disconnect the breaker leads plug  and the Centripetal
> switch plug,
> > the tractor is dead.
> >
> > I also checked each of the diodes with my OHM meter and they seem
> to be OK,
> > 0 ohms in one direction Infinite resistance in the other.
> >
> > I am starting to think it' s a motor problem, but I am open to any
> > suggestions at this point.
> >
> > Any Ideas
> > Thanks Again
> >
> >
> >
> > Geof Thompson B. Sc.
> > Data Management Engineer
> > Canadian Hydrographic Service
> > Central and Arctic Region
> > 867 Lakeshore Road
> > Burlington, Ontario
> > Canada. L7R 4A6
> >
> > Phone (905) 336-4698
> > Fax (905) 336-8916
> > E-mail Thompsong dfo-mpo gc ca <mailto:Thompsong dfo-mpo gc ca>
>
> Geof Thompson B. Sc.
> Data Management Engineer
> Canadian Hydrographic Service
> Central and Arctic Region
> 867 Lakeshore Road
> Burlington, Ontario
> Canada. L7R 4A6
>
>
> Phone (905) 336-4698
> Fax (905) 336-8916
> E-mail Thompsong dfo-mpo gc ca