Gold Founding Member
You'll need to have the refrigerant reclaimed by a recycling machine before unhooking the hoses. If there's no pressure in it now, you can bypass this step. You WILL need a new dessicant bag and o-rings when it goes back together. If you ever plan to convert to 134a, now is the time to do it, so you'll need barrier hoses, and flush out all the old refrigerant oil as well.