RCSC Chapter 16.2 Section 8.2.1 -The Nut or bolt rotation shall be applied to all fastener assemblies in joint, progressing systematically from the most rigid part of the joint... -The part not turned by the wrench shall be prevented from rotation during Turn of nut pretensioning Please start from the middle and work your way out when tightening a connection. There needs to be a mark on the steel lining up with the marking on the bolt to verify the bolt did not spin, unless an inspector is there to continuously watch the match marking process.
Traducción al español. 8:20 a M Respuestas Ben Freedman Racing • hace 3 años RCSC Capítulo 16.2 Sección 8.2.1 -La rotación de la tuerca o perno se aplicará a todos los conjuntos de tornillería en la junta, progresando sistemáticamente desde la parte más rígida de la junta. La parte que no gire con la llave deberá evitar que gire durante el pretensado de la tuerca. Comience desde el medio y trabaje hacia afuera cuando apriete una conexión. Es necesario que haya una marca en el acero alineada con la marca en el perno para verificar que el perno no giró, a menos que haya un inspector para observar continuamente el proceso de marcado de coincidencias. E 1
Came here just to say this.... Can't tell you how many times I've seen this performed incorrectly. A lot of times they say they did it so they just try to go back and add the lines. You can see a tiny dot on the bolt where they try to make it look like the nut has turned....
Do you dial in the torque number? Is there a setting that it knows when to stop like in our common drills ? Or is it a tool that is used only for this job and doesn’t fluctuate? Is he watching to see how far the bolt turns before letting go or is this kinda automatic .
The tool with the red element is the torque wrench used to turn the nut to reach the needed rotation. When the red element gets in contact with a fixed part, it prevent the torque wrench from rotating while applying the torque.
Hello Priscilla, the video shows the installation of high strength bolts in a slip-critical connection using the turn-of-nut method. The bolt grade and diameter are designed to prevent any slippage in the connection at service load level and to resist applied loads at ultimate load level. The length of the bolt needs to be sufficient to pass through all connected material and washers and shall extend beyond the nut.
