Digger derricks are a type of crane used in utility and construction work. They are a combination of a drill, crane, and hoist, and are used for drilling, digging, and lifting heavy loads. They are manufactured to meet industry standards set by the American National Standards Institute’s (ANSI) A-series of standards for overhead cranes and derricks. Digger derricks must meet the ANSI A-series requirements for safe operation, including the design and manufacture of the crane, the testing of its components, and the inspection and maintenance of it.
Design and Manufacturing of Digger Derricks
Before a digger derrick is manufactured, it must meet the strict safety requirements outlined in the ANSI A-series of standards. These standards cover the design, construction, testing, inspection, and maintenance of the crane. The design of a digger derrick must include features such as a base or working platform, a boom and winch, a power source, and a digging attachment. The manufacturer must use materials that meet the ANSI A-series standards and must ensure that the crane is designed and built to meet the requirements.
Testing of Digger Derricks
Once a digger derrick is manufactured, it must be tested to ensure it meets the safety requirements outlined by ANSI A-series standards. This testing includes a visual inspection to make sure the crane is properly assembled and functioning, an operational test to make sure it is safe to use, and a load test to make sure it can handle the loads it is designed for. The testing must be done by an independent third party that is approved by the manufacturer.
Inspection and Maintenance of Digger Derricks
In addition to the initial design, manufacture, and testing of the digger derricks, it is also important that the crane is inspected and maintained on a regular basis. This includes checking for cracks or other damage, inspecting the components for wear, and making sure that the crane is functioning properly. The inspection and maintenance must be done in accordance with the ANSI A-series standards and must be done by an independent third party that is approved by the manufacturer.
Digger derricks are an important tool in the utility and construction industries and must be manufactured, tested, inspected, and maintained in accordance with the ANSI A-series of standards. This ensures that the cranes are designed and built to be safe and reliable and that they are properly inspected and maintained. Following these standards helps ensure the safety of those who use the digger derricks and helps prevent accidents and injuries.
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