Loosen 2 screws bellow burners.
Note: If screws are to tight and won’t loosen-up, pry burner up with screwdriver.
Remove old screws spray DW-40 on them and let it penetrate a few minutes, this will make it easier to remove, if still wont come off use a pair of locking pliers or vice grips
Attach small burner bracket supplied with new burners using the 2 new screws provided, Per burner.
Install new burners, make sure burner shaft inserts over gas valve orifice. And attach to bracket with screw provided with new burner.