Lubricate moving parts: Over time, the moving parts of the Fiber Microtome can become hard or jammed. Lubricate the moving parts regularly to ensure they are working properly. Seek professional help: If you have tried these fixes and are still experiencing problems with the Fiber Microtome, seek professional help. A trained technician or manufacturer's representative may be able to diagnose and resolve the problem. https://www.qinsun-lab.com/News-and-events/2261.html