Fault and screening methods of electromagnetic pneumatic valve does not work 2

solenoid pneumatic valve switch failure will directly affect the pneumatic valve and adjust the action of pneumatic valve, electromagnetic pneumatic valve fault disposal of switched systems. Rare fault solenoid pneumatic valve is not action, screening from the following several aspects:
solenoid pneumatic valve terminal loose or falls off thrum, electromagnetic pneumatic valve can not electricity, can tighten thread ends.
the electromagnetic coil of pneumatic valve damage, can remove the solenoid pneumatic valve connection, measured with a multimeter, if open circuit, the pneumatic electromagnetic valve coil burn out.
coil be affected with damp be affected with damp, reasons caused bad insulation and magnetic flux leakage, causing excessive current in coil and burned down, so to prevent rain water from entering the solenoid pneumatic valve. In addition, the spring quality, reaction force is too large, the coil number of turns is too little, not enough suction also coil may be destroyed. When emergency disposal, but the manual button on the coil by the normal work of 'a call' position, make the pneumatic valve to open.
solenoid pneumatic valve stuck. Slide of pneumatic valve pneumatic valve and pneumatic valve core set of fit clearance is small ( Less than. Mm are generally single assembly, when mechanical impurities into or lubricating oil is too little, very easy to get stuck. Disposal methods available wire holes stab, from the head to make it back. Fundamental solution is to solenoid pneumatic valve will be removed, remove the pneumatic valve core and pneumatic valve core sleeve, clean with CCI, makes the pneumatic valve core in the pneumatic valve set inside the flexible motion. Assembly should be paid attention to when all parts, assembly sequence and wiring position to reassemble and wiring is correct, also check oil mist detector injection hole blockage, lubricating oil is enough.
air leakage. Gas leakage will cause the lack of air pressure, make it easier for enforcement of the pneumatic valve opening and closing, the reason is pneumatic valve sealing gasket damage or sliding wear several cavity caused by gas.
should choose the appropriate time, such as the electromagnetic pneumatic valve in a loss of power, the if processing is not down in a switch gap, switched systems can be suspended, calm disposition.