Main factors of unqualified crane inspection

Large mechanical equipment of cranes, no matter what type, needs to be strictly inspected, but many times the inspection of cranes is unqualified, and there are many factors, mainly including the following:

1. Incomplete equipment data

During the inspection of the crane, the product mark of the crane is often different from the provisions of the preparation method of crane transportation machinery. According to the provisions of the crane, the working level of the crane will be divided into a1-a8 and other levels.

2. Unreasonable crane setting

In the production process of the crane, some parts are missing. According to the requirements of the crane regulations, the crane must have the function of voltage loss protection. The voltage loss protection is carried out through the start button switch and contactor, but it is not started. The tonnage of the crane is often replaced by the emergency switch when it is started. With the passage of time, the emergency switch will wear, which will affect the response ability of the crane in an emergency and lead to accidents.

3. Ignore the installation of grounding wire

The specification of the crane clearly stipulates that the connection between the cab and the crane itself is not less than two when bolted. In the crane, workers often pay attention to whether the quality of electrical equipment meets the specification, but ignore it. Therefore, when the crane works, it often damages the driver's body.

4. Nonstandard design

In all parts of the crane, the installation of the main line contactor will be ignored by many designers, so it will not leave too much space for the installer to install the main line contactor. The contact points of all operating systems are easy to stick, which will adversely affect the work of the crane.

The above are the main factors of unqualified crane inspection introduced by Shandong bridge crane manufacturer. I hope it can help you.