Accuracy alignment of tension testing machine

1) Preliminary alignment of the main body;
2) Accuracy alignment of tension testing machine.
After the foundation nut is poured, it is not allowed to fasten the foundation nut and start the testing machine before the cement is dried. (The drying time of cement is generally not less than 10-15 days) After the cement is completely dry, tighten the anchor nut and recheck the installation accuracy of the testing machine to see if it is consistent with the alignment accuracy. In case of non-conformity, re-align.
During the use of the tensile testing machine, because the vibration during the test is easy to cause loosening, the relevant parts should be fastened after the tensile testing machine is used for a period of time.