Step by step is using the hex wrench, and tighten the bolt size M10, 2 out off bracket, then remove the bolt of the same size is the same size but with longer M10. Tighten and use the right hand grip near the nut, then the employee has used a hammer hit the nut for shock, then dropped out by the Core while using a hammer hit it. A hammer has hit the left index finger is missing the handle is against the nut so it makes up the injured.
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