Riggers are skilled tradespeople who specialise in mechanical advantage devices. These mechanical aids include cranes, derricks, capstan winches, and chain hoists. They can use manual or motorised devices to raise and lower objects. A rigger also works with steel structures, such as towers and bridges. Some common mechanical advantages devices are jackhammers, derricks, and cranes. A riger can work with all types of these devices.
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A rigger needs to have a high level of skill and judgment to perform his job safely and efficiently. In addition, he needs to be physically fit and mentally stable. Riggers must be able to operate heavy equipment at high altitudes and must be able to communicate well with others. In general, riggers must have a good grasp of what they are doing and be able to follow complex instructions. They must also have a strong sense of direction and communication skills.
A rigger works with cranes and hoisting tackle to help move heavy materials. They use a wide variety of tools to accomplish this task. They may also work with scaffolding to protect the construction site. However, they are not a complete replacement for a trained crane operator. A rigger must be certified to work on a ship, so they must be familiar with the ship’s hull and other parts.