(ET) E15 status, motor loses a bit of power.

[Christopher Zach <cz alembic crystel com>]

So now that the E15 has a seat, I've been using it more. The E20 finally 
came off the driveway with the snowblower and is in the shed (with the 
blower attached, just in case :-) so I use the 15 to haul things around.

It runs well. Slower than the E20 by a bit, but still nice enough. 
However I did notice that every once in a while the motor would lose 
power and spin slower, even in neutral. I did a measurement of the 
armature voltage and it was a nice solid 37 volts, so no problems there. 
Couldn't check the field voltage, because it just started working 
normally again.

It might be the field, I put some clips on the field connections and 
watched the voltage. Solid 36 volts up to speed 3, dropping to 10 or so 
on speed 6. So that seems to be ok. It's either the brushes going bad, 
or something in the field circuit.

Regardless, it's a nice little tractor for towing things. However the 
fenders I salvaged from the old box are too rusted to weld onto this 
nice new box. So it looks like I need a set of fenders, anyone got a set 
for sale?

Chris