Using the Greenlee ES20LXRB is straightforward. First, make sure you have a fully - charged 18V battery. You can operate it either by holding it directly or using the remote control. When using the remote, connect it via Bluetooth. Position the cutter's head at the desired angle; it can rotate 350 degrees to reach different spots. This cutter is great for cutting tough metals like ACSR. When it comes to safety, always operate within the temperature range of 1 F (-17 C) to 104 F (40 C). Keep it away from water and other liquids as it's a battery - powered tool. For maintenance, regularly check the cutting head for any signs of wear. Since it uses biodegradable oil, make sure to check the oil level from time to time and replace it if needed. Also, the warranty lasts for 84 months, so if you encounter any issues, reach out to the customer service.