Using the Greenlee EK6FTLX11 is a breeze. First, make sure your batteries are fully charged using the provided 120V charger. The smart charger will take care of controlling the charging process to maximize battery life. Once charged, insert the battery into the tool. When you're ready to crimp, select the appropriate aluminum or copper connector for your 6 AWG - 750 Kcmil wire. Place the connector and wire in the crimping head. You can use the one trigger to control all functions of the tool. The LED work light can help you see in dark areas. After the crimping cycle is complete, the tool will automatically retract. If the pressure sensor detects that the crimping force is below specifications, you'll get a visual and audible alert. As for maintenance, keep an eye on the LED light for battery charge and tool maintenance status. The tool uses biodegradable oil, so you don't have to worry too much about environmental impact. Remember to store the tool in a dry place when not in use to keep it in good condition.