RE: (ET) ET running, thanks Alltrax

["Pieter Litchfield" <plitch attglobal net>]

I assume by "Start" switch, you mean the switch referred to in the Alltrax
owners manual - " The throttle switch must open when the throttle reaches
the off position.  The off position is 250 ohms or less, wide open throttle
is 4.5K and above.  At 9.5K and above the controller gets a throttle out of
range error and shuts off the output?"  Apparently in addition to the pot, 
a
seperate throttle switch is necessary.  I have the controller with the
Alltrax "factory" pot which has a spring loaded return-to-off and a built 
in
throttle switch.  For my use (mainly working with a bucket loader) a "gas
pedal" would be more convenient than a hand throttle.  But for mowing, a
hand set throttle would be nice.

Question:  Could we use the forward-reverse and speed switches on the
existing GE hand "throttle" to control the reverse and throttle switch
functions of the Alltrax controller without the necessity of installing new
switches?  While all the "steps" in the throttle would be meaningless, at
least it would be convenient and ergonomically similar to what we are using
now.

Jon - I'm still think over the engineering.  Like you I'm a bit concerned
about tearing into the mass of wiring, even with lots of diagrams.  I'll be
sure to give you plenty of advance notice of the "Alltrax event" at my
house.



-----Original Message-----
From: elec-trak-bounces cosmos phy tufts edu
[mailto:elec-trak-bounces cosmos phy tufts edu]On Behalf Of Rod Hower
Sent: Sunday, April 18, 2004 9:24 PM
To: Oasis654 aol com; elec-trak cosmos phy tufts edu
Subject: Re: (ET) ET running, thanks Alltrax


Jon,
I used 3 switches, Start, Fwd/Rev and Key along
with a 5k pot (readily available at radio shack).
I did not use any of the original wiring.
I drilled holes for the start and fwd/rev switch
and the pot.  The pot is like cruise control since its
just a rotory type.  Everything is mounted on the
dash, just drilled some holes for the new components.
Someday I might actually use this thing for mowing,
but for now it's a fun EV toy.
Rod
--- Oasis654 aol com wrote:
>
> In a message dated 4/17/04 9:22:24 PM,
> rodhower ameritech net writes:
>
> <<  Connecting the controller was
> pretty easy compared to the tangled mess of wires
> that originally ran the motor.  9 wires to the
> Alltrax
> ,two switches and a pot is all it takes. >>
>
> hi rod, congrats on the new controller.  i'm heading
> in that direction too,
> but so far have been chicken to go for it.  my
> electrical knowledge is quite
> limited.  was it easy to determine which 9 wires had
> to be saved and connected?
> thanks and good luck with new machine.  we're all
> apparently interested in
> hearing more. jon k albany ny


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