Circular solenoid valve coil 203-60-56560 for PC120-6 excavator

Let's explain this case:

Electromagnetic generation has two parts: electromagnetic coil and magnet. When the coil in electromagnetic generation is powered on or off, the magnetic operation will make the fluid pass through the medium or be cut off, thus changing the direction of the fluid, because the current is to pass through the coil, so electricity.

The magnetic generation coil may be burned out. Of course, the reasons for the burning out may be different. Let's take a look at the reasons for the burning out of the electromagnetic generation coil. To sum up, the causes of solenoid coil burning are generally as follows

1 coil quality problems, too frequent work will burn.

2 Turn off surge overvoltage and instantly break down

3 power supply voltage is too high, directly burned.

4 Repeated impact frequency alarm on-off causes overcurrent or overheating.

5 Instability of installation and excessive mechanical vibration lead to coil wear, disconnection and short circuit.

So how to detect the solenoid valve coil?

The simplest way is to use a multimeter to measure the electricity generated by electromagnetic generation. The resistance of the coil should be around 100 ohms! If the coil's cathode is infinite, it means that it is broken, and if its resistance is normal, it does not mean that the coil must be good.

Yes, you should also find a small screwdriver and put it near the metal rod passing through the solenoid valve coil, and then energize the solenoid valve. If you feel magnetism, then the solenoid valve coil is good, otherwise it is bad.

The above is the introduction of the reasons for the burning of the solenoid valve coil. No matter whether it is caused by external reasons or internal reasons, we should pay attention to it, and we should avoid letting water talk about electromagnetism in ordinary use.

Inside the valve, the solenoid valve should also be inspected from time to time to ensure that the solenoid valve can be used for a longer time.