Using the Greenlee EK1240LXB crimper is straightforward. First, select the appropriate crimping head according to your needs. Connect the battery or use the corded adapter if you prefer. Turn on the tool using the trigger. Place the wire and connector in the crimping head, then squeeze the trigger to start the crimping process. The tool will automatically retract when the cycle is complete. When it comes to maintenance, regularly check the battery charge level using the LED light. If the battery is low, use the smart charger to recharge it. Keep the tool clean and free from debris. Make sure to use the biodegradable oil as recommended. Also, check the pressure sensor and other components periodically for proper functioning. If you notice any issues with the crimping force or other tool functions, refer to the tool diagnostics on the LED display. Always follow the safety guidelines provided with the tool to ensure your safety while using it.