I. Tool Preparation
1. Level: Electronic or frame level with an accuracy of 0.02mm/1000mm or higher.
2. Adjustment Tools: M12-M16 adjusting wrench.
3. Shims: Cast iron material for better load-bearing capacity.
4. Fixing Adhesive: Used to enhance the stability of the shims with the ground.
II. Operating Steps
1. Place Shims: Place one shim at each of the four corners and the center of the platform, ensuring they are in close contact with the ground and the bottom of the platform.
2. Leveling: Use a level to check the levelness of the platform's working surface. Adjust the height by rotating the lifting screws of the shims until the bubble in the level is completely centered.
3. Fixing Shims: Fix the shims immediately after leveling to prevent them from shifting during subsequent use. Tighten the fixing screws of the shims with a wrench. If necessary, apply a small amount of fixing adhesive to the contact point between the bottom of the shim and the ground.
4. Reinforcement: If the platform is large, reinforcement bolts can be added to the bottom of the platform to further improve its stability.
III. Verification and Maintenance
1. Retest: After fixing, use a level to check the platform's levelness again to confirm that the accuracy has not shifted due to the fixing operation.
2. Load-bearing test: Place a heavy object on the platform's working surface, let it stand for 1-2 hours, and then check again to see if there is any deformation or displacement.
3. Regular inspection: Repeat the adjustment every 3 months. If the accuracy decreases, it needs to be re-scraped.
IV. Precautions
1. Shim selection: Do not use ordinary rubber pads instead of cast iron shims. Rubber pads have poor load-bearing capacity and are prone to deformation after long-term use.
2. Leveling method: When leveling, do not only check one direction, but check multiple points to avoid local unevenness.
3. Post-installation inspection: Do not place excessively heavy workpieces immediately after installation. Give the platform and shims time to stabilize and adapt.
