Using your DeWalt DCS781X1 miter saw is easy. First, make sure the battery is fully charged and properly installed. Place your material on the saw and use the material clamp to secure it. Adjust the miter and bevel angles as needed. The CUTLINE™ system will help you position the blade accurately for a precise cut. When you're ready, start the saw and make your cut. For dust collection, connect the vacuum adapter to a compatible dust extractor or wet/dry vacuum. As for maintenance, keep the saw clean after each use. Wipe off any dust and debris. Check the blade regularly for wear and tear and replace it when necessary. Also, make sure to charge the battery properly and store it in a cool, dry place. When transporting the saw, use the stabilizer bar and base extensions to keep it secure. And always follow the safety instructions in the manual to avoid any accidents.