Mobile Crane Operator
Mobile cranes are cable controlled cranes which are mounted on crawlers or rubber-tired carriers. Generally, they are hydraulic-powered cranes with telescoping boom mounts on truck-type carriers or as self-propelled models. Generally, the boom that they operate has a hook at the end that is suspended by wire rope and sheaves. Throughout the years, a variety of transmissions have been used in order to power the mobile cranes, including steam engines, electric motors, and internal combustion engines. They have an advantage over other types of cranes in that they are easily transported and are flexible in order to handle a wide variety of loads and cargo quickly. Today, there are a variety of mobile cranes which are used in many different applications. Truck-mounted cranes can easily be transported along major roads, and are used in conjunction with outriggers or counterweights to keep them stabilized when in use. Rough terrain cranes are generally mounted on four rubber tires and can easily move over off-road or rough-terrain like surfaces for pick-up and carry jobs. Similarly, all-terrain cranes are those which can not only handle going on main roads but also into rough terrain as they have all-wheel and crab steering. Crawler cranes are used for large loads – they can lift from 40 to 3500 tons. They are very stable, and feature a set of trackers or crawlers on their undercarriage that keeps them stable and allows them to move. Finally, floating cranes are used mainly in the construction of bridges and ports, although occasionally when the offloading of ships is awkward. They are placed on top of crane barges and often are very strong, with lifting capacities of more than 10,000 tons.
Mobile Crane Operator Responsibilities and Descriptions
Training in this field allows for a variety of people involved in the use of the mobile crane, including operators, trainees, safety personnel, inspectors, maintenance personnel, and managers and supervisors, to have the information as well as hands-on experience they need in order to properly operate the crane. In training sessions, people learn about a variety of topics, including the effective use of communication and hand and voice signals, proper crane system, how to evaluate site conditions, the danger of power lines, load control, basic rigging principles, how to properly determine the center of gravity, pre-operational and post-operational inspection techniques, and proper equipment maintenance as well as many other topics.