I change my weights all the time on my sled. i compress the clutch with a small C-clamp apply heat to the set screw (use a small butane torch) then remove the set screw, remove the bolt i rotate the clutch so i can use a impact on the bolt since the loctite locks the bolt to the weight sometimes spin it a few times with the impact and it will slide right out, i also have one of those mechanics magnets it makes getting the weights and washers in and out a lot easier, then i put the new weight in, put the bolt in i always make sure that the indentation in bolt lines up with the set screw hole visually, put locktite on the set screw, install set screw. move on to the next weight