instructions
After the bell rings, conduct a no-load test run first. The handle on the left hand is the control handle for direction and range of the sports car, while the handle on the right hand is the hook lifting control handle. Empty load operation refers to the operation of swinging arms, racing cars, lifting hooks, etc. without lifting heavy objects, to see if they are running normally and if there are any hidden dangers in each operation.
Gently turn the left handle to the left or right to swing the tower crane arm directly above the target object. When swinging the arm, it should be steady and uniform, not too fast or too slow. At the same time, pay attention to the surrounding environment and avoid damaging surrounding buildings.
When changing speed, attention should be paid to the position and stability of the hook, and the sliding distance should be predicted. When entering the sliding distance, the handle should be released in a timely manner to allow the tower crane to slide smoothly above the target object. Then, use one speed to quickly tap in the opposite direction with high frequency to stop swinging the arm.