I have a 1972 JD 310 backhoe and my worker guy decided he would take the wiring out of the machine and put in new. It had a bunch of old lights, heater motor, safety lockouts so he took ALL the wires out. My question is does anyone have a simple wiring diagram for a JD or other diesel that is 12 volt and has an alternator. Not worried about accessories, just the diagram for wire to starter/solenoid, push button starter, and on off switch. Thanks