Using the DeWalt 60V MAX FlexVolt Blower and Chainsaw Combo Kit is a breeze. For the blower, first, make sure the battery is fully charged and inserted correctly. Then, turn it on using the power switch. You can control the air speed with the variable speed trigger and lock it at your desired speed. Use the flat concentrator nozzle for stubborn debris and the round nozzle for wider areas. When using the chainsaw, put on safety gear like gloves and goggles. Start the saw, and let it run for a few seconds before cutting. Keep the chain lubricated with the auto - oil feature, and when it's time to refill the oil, just turn the quarter - turn oil cap. For tensioning the chain, use the tool - free tensioning and bar tightening knob. As for maintenance, after each use, clean the blower and chainsaw to remove debris. Check the chain regularly for wear and replace it if needed. Store the kit in a dry place, and keep the battery charged when not in use. Remember, always follow safety instructions and don't use the tools if they are damaged.