Precautions for the initial installation of rail dowel:

1. Alignment of rail dowel installation and initial accuracy:

The rail dowel and the dynamometer are respectively transported to the concrete foundation, and the distance between the main body and the dynamometer and the direction are adjusted according to the shape and foundation drawing. Then, thin small iron blocks can be inserted into the bottom of the main body and the dynamometer (between the foundation), and the square level with 0 and 05/1000 accuracy is used to locate respectively.

2, rail dowel accuracy alignment:

After the preliminary accuracy of the testing machine is corrected, the initial operation test is carried out after the tubing, power supply and oil filling. When the test is in good condition, the accuracy of the testing machine is corrected.

3. After the accuracy of rail dowel is found, all the gaps under the frame are filled with water slurry to keep the frame well combined with the cement foundation to prevent the uneven level of the testing machine caused by vibration during use.

4. After the anchor nut is poured, do not tighten the anchor nut and start the testing machine before the cement is dried. (Cement drying time is generally not less than 10-15 days) After the cement is completely dry, tighten the carrier nut, and review the installation accuracy of the tensile testing machine to see whether it is consistent with the accuracy of finding. If it does not match, it should be corrected again.

5, rail dowel in the use of the process, due to the vibration of the test is easy to produce loose phenomenon, so the tensile testing machine after a period of time, the relevant parts should be tightened.

6, according to the size requirements of rail dowel instruction manual to make the foundation, the distance from the wall should not be less than 70cm to facilitate work and maintenance. Place the corner bolts into the bolt holes in the foundation.

rail dowel https://www.hbrailwayfastening.com/Rail-Dowel.html