Firstly, put the four bases on the ground, and adjust the calf to make it on a horizontal plane; Insert the lower part of the diagonal brace into the four corners of the outer side of the base, and insert 2 pieces in each corner, totaling 8 pieces; Fix the counter head on the base with screws, and pay attention to the rotation direction of the counter head consistent with the direction marked in the figure; Put a square sleeve on the counter head; Connect the beams on the ground; Connect the two ends of the beam with the two square sleeves on both sides respectively, and then assemble the beam components on the ground; Then lay the column under the analysis frame and connect it, and then screw one end on the counter head. Brother, screw the cross arm at one end and connect the hoist with the cross arm at the same time. The hoist is used to lift the lower beam truss; Several people work together to erect the column, be careful not to push the column too hard, and then fix the screws on the counter head; After the upright post is erected, hook the hook under the hoist onto the beam below through the sling, and then four people slowly pull the hoist together to pull the beam to the left and right position of the head; Install lighting and audio equipment on the beam; Four people pull the hoist together and stop at a preset height; Fasten one end of the diagonal brace to the upright post and the other end to the cross brace of the base, thus building the lamp frame.