When the power is supplied, if the button is pressed and does not rotate to the right to release it, the operation button will not function due to the pressure loss protection function.

1. Only drivers with certificates can operate the crane independently. Non-drivers are not allowed to enter the cab. 2. Carry out the handover work carefully. The handover person should introduce the situation to the successor, and the successor should read the handover diary and inspect the crane. 3. Wear labor protection equipment correctly. Do not drink alcohol before going to work. Lifting work is prohibited after drinking.

Each contactor and the main and auxiliary contacts of the relay should be checked regularly. If any singeing occurs, they should be smoothed with fine sandpaper. If severe, they should be replaced.

Gantry cranes are known for their versatility and strength. They are capable of lifting and transporting a wide range of loads from small to extremely heavy objects.

When the gantry crane is in use, it is a safety protection device that can effectively prevent overloading. It is also called a lifting capacity limiter. Its safety function is to stop the lifting action when the crane's lifting load exceeds the rated value, thereby avoiding overloading accidents.

Operators should carry out inspections and maintenance work for each shift according to daily maintenance requirements, fill in operation records, shift handover records, and do a good job in shift handover work.