How do I use an R134a charging hose to add/recharge R-134a refrigerant to my system?

-Turn the valve handle of the charging kit counterclockwise until the piercing stem is in the up position. This will prevent accidentally piercing the can. Screw the charging kit onto the can.

-Attach the quick connect fitting to the low side service port.

-Start engine and put A/C settings on maximum cool with the fan settings on high.

-Turn the valve handle clockwise until the piercing stem has punctured the can.

-Turn the valve counterclockwise until you feel the refrigerant leaving the can. See packaging for complete details. Always wear protective gloves and eyewear.