Concrete pump truck malfunction:
When the concrete pump truck is working, the insurance FU3 is always damaged.
Phenomenon and reasons:
The concrete pump truck is controlled by PLC. When FU34 is replaced and powered on during operation, it will burn out, indicating a short circuit in the 37th line. After the FU3 insurance is damaged, it will cause the electromagnetic valve of the concrete pump truck to have no power supply, making the concrete pump truck unable to work.
Emergency elimination methods:
The FU3 insurance burned out when replaced, which is due to a malfunction in the electromagnetic valve coil or circuit that is frequently powered on the concrete pump truck. The commonly powered electromagnets on the concrete pump truck include the main oil pump proportional coil, rotating electromagnet, and fan electromagnet. Check if there are any problems with these electromagnets and circuits.
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