It lives! (was Re: (ET) E15 wiring question)

[Graham Allan <allan physics umn edu>]

Very exciting... the E15 came to life last night! Following Bill's
advice, I cleaned the reverse relay contacts, and the contacts for fuse
#2. There was more on the list of things to try, but that was enough to
bring the motor to life.

I don't think everything is working properly yet - in particular, I'm
not convinced the speed control has any real effect (I can't tell any
difference in speed between the slowest and fastest positions, in
either forward or reverse), but it is at least moving, which is very
encouraging!

Graham

On Thu, May 22, 2003 at 06:00:30PM -0500, Graham Allan wrote:
> Thanks Steve and Tom for the helpful suggestions. I am further along
> now - although part of my diagnosis was way off before! Stupid really -
> I tested the seat switch, and it does work, but then when testing other
> things, I didn't rig it to push far down enough to activate. No wonder
> nothing worked...
> 
> Keith also called me, armed with a wiring diagram, and figured out that
> the large "6" terminal on the 1A contactor should have two large and
> two small wires on it - which took care of the surplus small wire.
> 
> Now with the seat switch fully down I get *much* more activity...
> 
> The PTO works fine.
> 
> When pushing the speed selector forward - the motor doesn't run, and
> the L contactor clicks on and off repeatedly.
> 
> Pushing the speed selector into reverse - the reverse relay hums
> slightly but doesn't move fully. I measure 12v across the coil there -
> surely it should be 36? That would explain it not moving fully, at
> least.
> 
> I did talk to Bill Gunn this morning (I do still need to get hold of a
> few missing parts) and he says the symptoms probably mean there's no
> field current to the motor. So that gives me some more things to look
> at when I get home...
> 
> Graham
> -- 

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Graham Allan - I.T. Manager - gta umn edu - (612) 624-5040
School of Physics and Astronomy - University of Minnesota
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