Maintenance of spray gun Chapter III

Some problems sometimes appear in the process of using the spray gun. Now we will analyze the phenomenon of the spray gun in detail, and according to the phenomenon, analyze the reasons and find out the solutions.

Here are some common faults and solutions:

fault reason solutions
The air pressure cannot be adjusted normally 1.Damaged air regulator or air valve Replace the air conditioner or air valve
  1. Return spring of air valve is broken or not installed
Replace or install the return spring of air valve
Coating leakage of thimble seal
  1. The sealing ring of ejector pin is worn out
Replace the thimble sealing ring
  1. Thimble sealing ring gasket not installed
Install thimble sealing ring gasket
  1. Thimble sealing ring spring damaged or not installed
Replace or add ejector pin seal ring spring
4.Thimble sealing nut is loose Tighten the thimble sealing nut
5.The contact between the ejector pin and the sealing ring is worn Replace nozzle set
6.Thimble and spray gun are not matched Replace the nozzle set matched with the spray gun

The nozzle needs maintenance, regular inspection, cleaning and even replacement, so as to ensure the final product quality and maintain the economic benefits of the production process. The manner and frequency of the repair procedure depends on the application. 

Treatment before spraying: phosphorus removal, oil removal and rust removal. Check whether the product is well sealed.

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Post time: Aug-16-2022