Re: (ET) Debugging ET 12S (was Power Disconnect for an E12M)

["Darryl McMahon" <darryl econogics com>]

Hi Dave, 
>  Thanks for the responses.  What time zone is Bill Gunn in?  It might be
> to late today for me to call him today.

Bill is in Wisconsin, I suppose that is Central Time zone.
> 
>  I have a service manual or parts of one and have a schematic blue print
> as well.  I think we scoped it out pretty well and correctly determined
> that the motor was reversing by changing the direction of the current
> through the field.  And it did indeed turn in a different direction when
> we reversed the wires on the motor.  I am new not only to these machines
> but to electronics as well (the E12 is a "teaching machine" for me).  
> I'll
> take another look at the motor wiring on my way home but I think mine has
> 4 large wires (1 or 2ga ?) and two small gauge wires (14ga?) that go to
> the field.

The ETs are definitely a learning experience.  I will wait until you 
confirm the wiring on the tractor vs the schematics before going 
any further with this.
> 
>  Could it be that some of these tractors came with different type motors?
> Or more likely am I out in left field with this.

There were different motors on different series of the ETs, but I did 
not think there was that much variation within a model, eg. the 
E12S.  
> 
>  I am work and don't have the blueprint or the wiring diagrams in front 
> of
> me so can't be anymore specific than that.
> 
> thanks much, I really appreciate this resource!
> 
We do what we can.


Darryl McMahon          48 Tarquin Crescent,
Econogics, Inc.         Nepean, Ontario K2H 8J8
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