| 摘要 |
A fastening and loosening device includes transport devices capable of moving along the array direction of a plurality of stud bolts, control panels that independently control the transport devices, a plurality of bolt tensioners, control panels that independently control the bolt tensioners, and a transport operating device having a control panel that controls the control panels and the control panels, and a fault diagnosis device is provided by connecting the control panels to the transport operation device through power cables, whereby the reliability of the device can be improved.
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