Using the DeWalt DWE6421 is easy. First, attach the sandpaper to the hook and loop pad. Then, plug in the sander. Hold the sander with the rubber overmold grip and turn it on using the dust - sealed switch. Move the sander smoothly over the work surface. The shorter design helps you get close to the work. For dust collection, you can either use the one - handed locking dust bag or connect the sander to a DWV010 or DWV012 dust collector. When not in use, unplug the sander and store it in a dry place. To maintain it, clean the dust - sealed switch regularly to keep it working well. Also, check the counterweight and rubber overmold for any signs of wear and tear. If you notice any issues, contact DeWalt's customer service.