Pneumatic marking machine marking head does not come out needle or needle out of the normal treatment method
January 27, 2022
The needle is not out of the marking head or the needle is out of normal:
(1) Check whether the pressure of the pressure reducing valve is normal (the normal value is 2-4 atmospheres);
⑵ Check whether the air circuit is connected well, whether there is air leakage at the connection of the needle sleeve, and whether the trachea connector is inserted well;
(3) Use manual test to see if the vibration of the steel needle is working and whether the air vibration of the needle valve is normal;
⑷Check the circuit board, whether the Solenoid Valve frequency and duty cycle adjustment potentiometer is adjusted normally. W1 adjusts the frequency and W2 adjusts the duty cycle. After adjustment, the voltage between the “24-” and MAC of the upper right corner of the control board is less than 9.6V.
