Using the Makita RP0900X/2 plunge router is easy. First, make sure it's unplugged. Adjust the plunge depth according to your project, it can go from 0 to 35mm. Hold the router firmly by the ergonomic grip. Plug it in and start the motor. Guide the router steadily along your workpiece for a smooth cut. When you're done, unplug it right away. As for safety, always wear safety goggles and ear protection. Don't operate the router if it's damaged. For maintenance, keep it clean. You can use the vacuum connection accessory to suck up dust while working. After use, wipe it down with a dry cloth. Store it in the provided durable case to protect it from damage. Periodically check the power cord for any signs of wear. With proper use and care, this router will serve you well for a long time.