Loader excavator accessories 278-1799 solenoid valve Hydraulic valve 226-9622

The common faults are that the solenoid valve does not work, which should be checked from the following aspects:

1. The solenoid valve connector is loose or the wire connector is off, the solenoid valve is not electric, and the wire connector can be tightened.
2, the solenoid coil is burned out, you can remove the solenoid valve wiring, measurement with a multimeter, if open, the solenoid coil is burned out. The reason is that the coil is damp, causing poor insulation and magnetic leakage, causing the current in the coil to be too large and burned, so it is necessary to prevent rain from entering the solenoid valve. In addition, the spring is too strong, the reaction force is too large, the coil turns are too few, and the suction is not enough can also make the coil burn. In case of emergency, the manual button on the coil can be pressed from the "0" position in normal operation to the "1" position to make the valve open.
3, the solenoid valve stuck: the solenoid valve sleeve and the spool with a small clearance (less than 0.008mm), is generally single
Part assembly, when there are mechanical impurities or too little lubricating oil, it is easy to get stuck. The treatment method can be steel wire through the small hole of the head to make it spring back. The fundamental solution is to remove the solenoid valve, take out the spool and spool sleeve, and clean it with CCI4, so that the spool is flexible in the valve sleeve. When disassembling, attention should be paid to the assembly sequence and external wiring position of each component, so as to reassemble and wire correctly, and check whether the oil spray hole is blocked and whether the lubricating oil is enough.