STANDARD MOUNTING PLATE INSTALLATION INSTRUCTIONS OUTLET BOX MACHINE SCREWS MOUNTING PLATE OUTLET BOX MOUNTING SCREWS CAUTION: DISCONNECT POWER DURING INSTALLATION 1.) If you are replacing an existing fixture, disconnect and remove the old fixture. Expose the supply wiring from the outlet box. 2.) Thread the machine screws into the opposite side of the mounting plate from the green ground screw, lock the machine screws into place with lock nuts. 3.