|
Switchs on tractors (can) have 3 terminals. One is the input and one is a "first position" (pulling out on the shaft) output and the other is the "second position" which shorts all three together. Need to ohm it out to see which is which. If you are using 6 volt bulbs on a 6 volt battery, the connection is nothing more than getting 6 volts thru the switch ( at the desired position) to the lights you want to light. Example. Wire (via a 20a fuse with 12 AWG insulated wire) 6v from the batt to the input terminal of the switch. Then, using the same wire, wire from the first position terminal to one headlight. From that same terminal on the first headlight, wire to the identical terminal on the other headlight (puts them in parallel so both get 6v applied to them). The other terminal on both headlights should have a short wire to chassis ground. If not add a wire from them to the chassis somewhere so that it is metal to metal contact with where the battery is grounded. Usually the tin is inadequate and I usually run a separate ground wire back to the engine or something that is hard bolted to the engine....as the battery is (usually) grounded to the engine or tranny housing.
The other terminal (on the switch) you can wire to a rear light; be it red for road or white for field. Wire from the switch to one side of the light and the other side is grounded just like the headlights. If you want the ignition switch to control lights (like when you turn the engine off the lights automatically go out, you have to route the input wire (the one with the fuse) thru the contacts of the ignition switch so that it will interrupt the light circuit when it is off. Won't affect the tractor's performance....if it is in good shape and can carry the 18 amps the lights will be using. Better to keep the ignition out of it and just don't forget to turn your lights off.....also, sometimes you may want some light without turning the ign key on. That's it. Mark
| 
