Never taken these apart (don't own a set... yet) but in my experience taking way too many things apart, anything that has a spring under any real tension is asking for trouble if you take it apart. Not that you can't get it back together, but it's going to be more of a PITA than anything else. Witness the trigger on my Ryobi drill last weekend... It works, but it took nearly an hour to get it back together properly.

Karl