What inspections and test operations should be carried out on a crane before it leaves the factory?
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All mechanisms of the crane must undergo no-load tests and inspections of its various components before leaving the factory. The main inspection requirements for cranes in factories are as follows: 1. Check whether the materials used in manufacturing the crane, as well as the castings, meet the standards. 2. Check whether the protective measures for electrical equipment and instruments meet the requirements. 3. Check whether the dimensional tolerances of the metal structure and the quality of the welding meet the standard requirements. 4. Check the reliability of the electrical control system and wiring system. 5. Check whether the operation of each mechanism and its installation position are accurate. 6. Check whether the paint quality of the crane meets the requirements. 7. Check whether the quality of all components of the mechanism meets the standard requirements. The prefabricated crane comes with a qualified manual; after leaving the factory, it is the user’s responsibility to carry out its installation and conduct trial operations with no load. For new products, installation and testing are generally carried out by the manufacturer. However, if the factory conditions do not permit it, the manufacturer’s technical staff can perform the installation and testing at the user’s construction site.
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