12V Yuchai solenoid valve coil excavator accessories solenoid valve coil spool

The first step of coil maintenance is accurate fault detection and diagnosis. This usually involves the use of professional test equipment to check the resistance value of the coil, the insulation performance and the working state after the power is turned on. The change of resistance value can reflect whether there is a break or short circuit inside the coil; The insulation performance test helps to find out whether the coil insulation is damaged due to aging or moisture; The power test can directly observe the working effect of the coil and determine whether it generates a magnetic field or current as expected. Through these detection means, maintenance personnel can quickly locate the specific location and cause of coil failure, providing strong support for subsequent maintenance work.