When using the H-beam straightening machine, the following operational procedures should be observed. First, clean the equipment, removing all debris that may hinder the operation of the machine and the H-beam, particularly any weld seams that may obstruct the steel's movement. Next, adjust the upper frame's position according to the corrected width and thickness of the H-shaped steel flange plate to ensure the holes meet the requirements for the H-beam range. Then, perform the straightening operation on the machine, ensuring that the transmission components operate smoothly without any jamming or overheating. After that, send the end of the H-beam to the machine to stop the main drive roller's operation, and start the lower pressure motor based on the thickness of the flange and its deformation amount, adjusting the pressure timing accordingly. Adjust the guide roller position according to the thickness of the web, the width of the flange, and the longitudinal deformation amount to ensure the guide roller does not experience excessive axial force.