Always new crush washers when you loosen the banjo bolts.
If you are fully disassembling and replacing the system with new stuff sure, but they really don't "crush", pretty solid so they will be fine just loosening and moving them (adjusting).
If you are fully disassembling and replacing the system with new stuff sure, but they really don't "crush", pretty solid so they will be fine just loosening and moving them (adjusting).