How to Switch a Range Cord From 4-Prong to 3-Prong | Hunker
Tighten the screw firmly with a screwdriver or nut driver. Connect the black (hot) cord wire to the left or right terminal on the block and tighten the screw. Connect the red (hot) cord wire to the remaining open terminal on the block and tighten the screw. Note: Each outer terminal must have only one hot wire.