Using the Makita GMH04PL4X breaker hammer is easy. First, make sure the 40V max XGT® 8.0Ah batteries are fully charged. Insert the batteries into the tool and you're ready to go. When starting, use the soft - start feature for better control. For dust extraction, if you have the optional Makita Dust Attachment Kit, connect it. You can use the AWS® system with a separately - sold transmitter for wireless power - on/off with your dust extractor. When the tool is not in use, let it idle for a bit so the 'Soft no - load' function can reduce the motor speed and extend the tool's life. For maintenance, keep the tool clean from dust and debris, especially around the vents. Check the battery contacts regularly to ensure a good connection. When charging the batteries, use the XGT® Rapid Charger. It has a digital display that shows the charge level. The charger's built - in chip will control the current, voltage, and temperature for efficient charging. Make sure to store the tool and batteries in a dry place. Avoid overloading the tool to prevent damage from overheating or over - discharge.