Tx Jim and Bob,
Hope I didn't create a problem for you. This 3020 is a gas tractor and has 12 volt electrics.
The switch which you kindly posted has more terminals than on the new switch I have for the 3020 12v gasser.
The JD Parts Catalog from JD website gave switch part number AR 28401.
This switch has 6 terminals B (assumed battery), HD1, HD2, FL, TL, R2 and the dimming resistor.
The old switch (which tested bad) also had 6 terminals. There were broken wires for the FL and TL of the old switch and from what I can tell, nothing connected to the R2 terminal.
However, I'm still curious as to what R2 is for. Thanks for your inputs.