HiCustomerthis is lostrider, here is the procedure, hope this helps.
Draining WARNING: When releasing the system pressure, cover the expansion tank cap with a thick cloth to prevent the possibility of coolant scalding. Failure to follow this instruction may result in personal injury. CAUTION: When draining the engine coolant or changing any cooling system components, it is imperative that no coolant comes into contact with the timing or accessory drive belt. If necessary the belt should be removed. Contamination of the belt may result in belt failure.