Cranes have been known to mankind for centuries. They were invented in Greece and powered by men and animals to assist in building some of the most breathtaking buildings in ancient Athens. Soon enough men and donkeys have been replaced by steam engines, followed by electric motors and hydraulic systems. Cranes and transportation equipment have come a long way since that time, and nowadays they are available in various models and sizes to serve different purposes.
To name just a few, there are jib cranes that are mainly used in workshops, tower cranes used when skyscrapers are built, or floating cranes used on oil rigs. There are also crawler cranes, telescopic cranes, railroad cranes, mobile cranes, rough terrain cranes and aerial cranes. They come fitted with a boom, counterweights and outriggers. Crane trucks for sale are the most commonly used kind of transportation equipment: a crane is mounted on a heavy, modified truck.
Crane trucks for sale are also fitted to lift mobile units, heavy containers, objects and materials. This kind of transportation equipment has to be operated by experienced crew, as the operators communicate with one another using hand signals, or if the distance is too far, they use radio communication. In order to be able to operate crane trucks for sale members of the crew have to undergo a special training and follow the guidelines of OSHA (Occupational Safety and Health Administration) concerning safety regulations.
When operating any kind of transportation equipment, including crane trucks for sale one has to be very careful so as not to cause any accident. While carrying the load, the operator must not swing it sideways when he is moving backwards of forwards as the truck can tip over. It does not happen very often, but it is better not to push the transportation equipment to its limits.