Re: Parts wanted. 36v parts available.

[jerry dycus <jerry5335@yahoo.com>]

        Hi Lawrence and All,
--- Lawrence Rhodes <bassoon@jps.net> wrote:
> On further inspection I found 4 selinoid contactors
> ganged together under
> the main support ibeam.  Big wires going to each
> point on the big resistor.
> I'm just wondering how  the Lub O Matic controls the
> selinoids.  Oh
> well.....Lawrence Rhodes....
      Probably by having a slide switch connected to
the throttle rod/cable. Trace the rod/ cable back and
you wil find them. 
    The selenoids probably just short out the
resistors one at a time until they are all on at top
speed. They are probably 36vdc units so would need 36
vdc source to run them after you switch to 72vdc. 
     What I would do is connect the selenoids into
series/ parallel with a starting resistor or 2 shorted
by selenoids  for starting/ running. 
     Since the pack would be 2/ 36vdc packs you would
have 36vdc for the selenoids and can still use the
36vdc charger if the batts are floodeds.
     Also on your e-bike you could use a 10 speed rear
axle for higher reduction by hard mounting the wheel
hub and putting the motor chain to the big sprocket,
then the small sprocket to the wheel sprocket.   
     That should give you enough reduction top keep
you motor from burning up.
           Hope this helps,
                  jerry dycus
> ----- Original Message -----
> From: "Lawrence Rhodes" <bassoon@jps.net>
> To: <ev@listproc.sjsu.edu>
> Sent: Thursday, September 27, 2001 11:52 PM
> Subject: Re: Parts wanted. 36v parts available.
> 
> 
> > Well I was thinking that this system is pretty
> basic.  Just a big coiled
> > resistor.  Why not just pump 72v into it and see
> what happens.  The worst
> > that could happen is that the relay and contactor
> will fry.  The rest is
> > pretty beefy.  Lawrence Rhodes.....
> > ----- Original Message -----
> > From: "jerry dycus" <jerry5335@yahoo.com>
> > Subject: Re: Parts wanted. 36v parts available.
> >
> >
> > >        Hi Lawrence and All,
> > >          Most 36vdc chargers will work fine on
> 72vdc
> > > just by changing the full wave rectifiers to a
> bridge
> > > rectifier.
> > >         This works best with ferro type chargers
> that
> > > most of the older ones were.
> > >                Hope this helps,
> > >                      jerry dycus
> > > --- Lawrence Rhodes <bassoon@jps.net> wrote:
> > > > I'm souping up a three wheel cart(Laher).  It
> has a
> > > > GE 2 hp 36v motor.  I
> > > > need a 72v charger, controller and DC to DC
> > > > converter.  I will be taking out
> > > > the LubOmatic controller the biggest variable
> > > > resistor I have seen and a
> > > > Laher 36v charger.  The variable resistor has
> #6
> > > > wire four speeds forward
> > > > and reverse switch Is about 18 inchs long and
> 3 to 4
> > > > inches around each
> > > > coil.  .  I might be able to use the knife
> switch in
> > > > the conversion but it
> > > > might not be able to take 72v.  These 36volts
> parts
> > > > might be a good starter
> > > > for a small project.  Lawrence Rhodes...
> > > >


__________________________________________________
Do You Yahoo!?
Listen to your Yahoo! Mail messages from any phone.
http://phone.yahoo.com