Spray gun in the use of the process may fail, this time we will certainly try to exclude the idea of failure. For example,the following analysis let to you under Xiao Bian.
　　Under the Spray gun models of different methods used to exclude different.

　　PQ-1-type Spray gun Common Faults and exclusion method:
　　1, leakage: Generally, the ball does not fit closely with the pores caused by sand wax can be used to hole the ball around the ground and airway smooth.
　　2, top ball springs loose: the spring Ban Xia, stretch more, or replace spring.
　　3, valve switching tight: flipping a strenuous, the spring can be removed, the alcohol lamp heating, proper annealing, so loose with ease.
　　4, gas nozzle and spray nozzle of the correction: gas nozzle diameter of one-third to one half should be straight and aligned spray nozzle, or smoking is not on the paint, or the paint uneven.
　　5, back to stomatal plug: painting a small hole on the lid child is returned to gas use, found that plug can be used to clear the fine steel wire.

　　PQ-2 type Spray gun Trouble and common methods:
　　1, flat-type nozzles on the ends of the holes must be kept open, if blocked, can be removed to the nozzle immersed in the organic solvent while, so that the residual paint to soften the hole, and then blown through with compressed air. Note that can not be used needle, needle stomatal deformation will, affect spray effect. Normally, Spray gun are used up, clean-up after discharge nozzle submerged in solvent.
　　2, spray (Spray gun) in the event of leakage, the paint will be intermittent or uninterrupted. First check whether the nozzle can be tightened around the pad of asbestos thimble nozzle is leaking or not strict, the other
Parts such as hose leaks and other joints. The case of damaged asbestos can be removed thimble, coated with grease spots or where a forest, then on asbestos rope or thread around a few times, re-tighten the thimble.
　　3, trigger failure in the control valve can be removed, remove dirt and wax with sand or emery grinding to close the valve cores installed after.