How to Change 6-Volt to 12-Volt on a Tractor

Remove the negative battery cable with a wrench and a socket set. Remove the positive cable with the same tools. Remove the battery from the case mount with a wrench. Grind the battery mount off the tractor's frame and weld the 12volt mount in place of the original mount. House the 12-volt battery on the new mount and case it with the battery cage using the same bolts and wrench.

Disconnect the two positive wires from the generator with a flathead screwdriver. Unbolt the generator from its mount with wrenches and a socket set. Grind off the 6-volt mount and weld the 12-volt alternator mount in its place. Bolt the 12-volt alternator and regulator in place using the same bolts and wrench.

Remove the light casings from the tractor with your flathead. Push the lights 1/8 inch into the casing and twist them off counterclockwise. Remove the covers using the same tool you used to remove the covers. Replace the casings and bulbs with 12-volt versions and reattach the covers. Remove all the 6-volt fuses and replace them with 12-volt fuses.

Connect the wires from the coil to the alternator. Connect the negative battery cable to the battery terminal. Connect the positive wire from the alternator to to the positive battery terminal.