Using this jointer is easy. First, decide whether you want to use the standard straight knife cutterhead or the helical cutterhead. If you need to change the knives on the helical cutterhead, it's a breeze with the 42 two-sided carbide inserts - no adjustments needed. When setting up the angles, use the preset stops on the fence body for quick 45° angles in and out, and the positive stop for a perfect 90° angle. Adjust the fence assembly using the rack and pinion system for smooth positioning. Make sure to connect a dust collection system with a minimum of 800 CFM to keep your workspace clean. As for maintenance, keep the table surface clean and free of debris. Check the alignment of the tables regularly to ensure they remain parallel. Also, inspect the knives for wear and replace them when necessary. Be aware that this product may cause cancer and reproductive harm as indicated by Prop 65. Always follow the recommended circuit size of 30 amps and use the prewired 230V voltage for safe operation.