Re: (ET) Rookie questions on an E20

["David Roden (Akron OH USA)" <roden ald net>]

First thing to do is call up Bill Gunn (608 868-6220; call mornings) and 
order 
a copy of the Homeowner's Service Manual.  It has schematics and 
troubleshooting flowcharts.  Makes the tractor much easier to fix.

The small relays (on my E15) provide reversing by reversing the polarity 
of 
the field, and switch in the field weakening for the highest few speeds.

Resistors shouldn't get hot when motor isn't running.  I agree that you 
probably don't have field voltage.  Get the manual and a voltmeter and dig 
in.


David Roden - Akron, Ohio, USA
1991 Solectria Force 144vac
1991 Ford Escort Green/EV 128vdc
1970 GE Elec-trak E15 36vdc
1974 Avco New Idea 36vdc
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    MPG of Ford's most fuel-efficient 2003 car: 36
    MPG of Ford's 1912 Model T: 35

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