Before anybody else calls me on this (the latest in a continuing series of
errors), I will correct myself.
In my defense, I must say that the Crane instructions are very confusing (right
Ray?) I was looking at an additional note that was discussing installation of an
"ignition power relay circuit" this is the thing that is to be connected to
12V(battery). My own is connected to the coil as the instructions say. (I had
to
go look).
With that said, it appears that my own application is delivering 12V to the
Crane
unit when the key is on. My own has no external ballast. Of course the coil is
in parallel to the circuit, so there is some relationship to the resistance
inside the coil, but I'm not sure what.
I'm curious if the Crane people were talking about a specific model, or speaking
in general about the entire series.
Regards,
Joe Curry
> Ray,
> I don't quite know how to say this without sounding offensive, so with that
> caveat, I'll continue. One must be very careful here. Apparently there are
> different voltage models of the XR700 Crane Ignition.
>
> In a Warning message included in the leaflet that came with mine, it says
> that the 12 Volt models won't adapt to positive ground, but the 6 Volt ones
> will. And the instructions in the flyer clearly state that the power leas is
> to be connected to 12V. (They recommend a direct connection to the battery).
>
> Joe Curry
>
> r-james@tamu.edu wrote:
>
> > The real issue here is not the voltage applied to the coil,
> > but the input voltage applied to the Crane unit. My crane unit (on
> > 1500 cc Midget; same engine) requires 6V, not 12 V, which is
> > not very clear from the instructions which serve to confuse the issue
> > with the language Charlie quotes above.
> >
> > If the Crane unit is powered by the 12 V input, it will run fine--
> > for about 5 months, at least in my experience. My unit is now
> > driven at 6 V, by the use of the ballast resistor, and it has been
> > trouble-free for probably two years.
> >
> > I suggest to anyone who has installed a Crane unit, and had questions
> > about the ballast resistance language, that you should reread the
> > ambiguous directions with my interpretations in mind, and if you
> > are running a crane unit at 12 V, rewire it for 6 V. If the Crane
> > unit is too hot to put your hand on it while operating, there is
> > something wrong, and you can expect a premature failure.
> >
|