Top running cranes have fixed tracks or a rail system mounted on top of each track beam, allowing the end truck to carry the bridge and crane along the top of the track system.

1. During lifting operations, it is necessary to have a comprehensive understanding of the working environment, travel routes, buildings, and object weights at the work site. 2. Operators should sound the signal before carrying out lifting, turning, luffing, walking, hook lifting and other actions, and strictly implement the commander's signal. Special operators must have a special operation safety operation certificate.