(ET) Motor Control Probem on by C-185/E-20

[Klein Robert W NPRI <KleinRW Npt NUWC Navy Mil>]

I went out to use my tractor last evening and couldn't go!  Here's the 
symptoms;

1.      Main power switch engaged and working.
2.      Key in the on position, fuel level gage indicating full.
3.      Depress foot switch and nothing but a click from a solenoid just 
front of the foot well area.
4.      Opened cover and can manually override relays to operate motor.
5.      When switched to reverse, the RED led reverse indicator light is 
on.  When I depress the foot pedal it goes out.  I can manually override 
at the relay to make it work.
6.      When I try to engage the PTO switch I get no power at the plug 
(mower deck or welder)
7.      Front lift works fine but is wired independently from main motor 
control circuitry.

Any ideas?

Bob Klein