What are the safety precautions to take when using a jib crane?

What are the safety precautions to consider when using a jib crane?

Safety Operation Procedures for Overhead Cranes: 1. Operators of overhead cranes must inspect the switch button for electrical circuits and the limit wire for rope positioning before use. Any issues should be repaired promptly before operation. Ensure all power switches are turned off before leaving. 2. During lifting operations, remain focused, keep both hands on the control switches for immediate braking. Do not engage in conversation or eat while lifting to avoid accidents. 3. Always conduct a trial lift when handling any load, ensuring the hook is vertical. Adjust the hook immediately if imbalance is detected. Do not lift at an angle; retest the lift to maintain the load's stability before lifting. 4. Do not exceed the load capacity; lifting any item over 500kg is prohibited, otherwise, severe penalties will be imposed for violating operational procedures. 5. Do not lift loads too high off the ground; maintain a height of about half the operator's height. If passing over objects, be cautious to avoid collisions; prohibit crossing over machinery during lifting. 6. Always monitor the lifting operation for any unusual sounds or phenomena. Immediately stop lifting and report the issue for immediate action. Failure to do so will result in severe penalties for violating operational procedures. 7. No emergency repairs are allowed while the overhead crane is in use. 8. When not in use, store the crane arm in a safe location, do not obstruct the path of other lifting equipment, and do not park it arbitrarily. Failure to comply will result in penalties for violating operational procedures.