3.The screw-button at the back side of the gun is used to control the pressure, which is adjusted into a perfect working position by specialized engineer before ex-factory; so it is strongly recommended customer not to adjust it by their self to prevent malfunction of the product.
4.For extending the life of spray gun and not affecting the working efficiency, please maintain your spray gun by just several minutes after using. First, spray out the rest liquid, then take off the piston which near the nozzle head, and drop little nourish oil on it.
5. If the spray gun is out of order, please detach and examine it according to the instruction menu attached. If the reason is oxidization, please remove it by using deoxidization paste, then drop little nourish oil on it. If the reason is damage of parts, we can supply all parts at reasonable price. Please indicate us the part No., we assure you of our best service at all times.