1. The cylindrical guide rail and base parts are directly installed on the following three foundation plates. Do not tighten the bolts, but tighten the rail seat and rail fixing bolts.
2. Check the levelness of the cylindrical guide rail with a level gauge, check the horizontal error with a feeler gauge, level the lower side with a copper pad, tighten the bolts and fix the three base plates.
3. Detect the parallelism of the circular guide rail and the rectangular guide rail with the guide rail parallelism measuring ruler, adjust the fine-tuning screws of the guide rail seat and the guide rail fixing piece to make the parallelism within the error of 0.05mm, and then tighten the guide rail seat and the guide rail fixing bolts.