With laser torch - before inflatable toy gun lighter with a small tool to resist air core, completely put the residual gas inside, make lighter pressure in the tank to eliminate; The gas tank outlet vertical press, press 5 seconds at a time, two or three times can be. The charging is completed, please wait five minutes to use, such as 5 minutes there is still a dozen don't fire situation, please dispatch regulating valve can be bigger. (pay attention to the + - direction)