you can erase technology from the face of this earth but erasing the knowledge to build (or rebuild) the technology is the hard part.
It will take generations to wipe all the traces of prexistent technology before the inquisitive young minds come upon them and start asking questions (if not searching for the answers themselves). you will need to burn every single book, manual, sketch, handbook and textbook and treat them all as taboos.
You might wish to keep the use of technology up to the point of pre-industrial revolution era and halt it there to encourage actual craftsmanship and trade skills, rather than just doing a repetitive and mindless task at an assembly line. But that will be like lighting an uncontrolled bonfire for warmth in a dense forest and expecting that it will stay confined to its place.
