Using this CrankBrothers Cigar tool is a breeze. First, if you need to use the CO2, screw the CO2 cartridge directly into the plunger tool. Attach the Klic CO2 cartridge adaptor to your presta valve and then connect the tool to start inflating your tire. For tire plugging, use the included tire plug tool and insert one of the five tire plugs into the puncture. To mount the tool on your bike, use the bottle cage bracket and secure it to the bike frame. When it comes to maintenance, keep the tool clean and dry. Check the threaded parts regularly for any signs of wear or damage. Remember, CO2 cartridges are sold separately, so make sure you have some on hand when you head out on your cycling adventures. Also, the tool is covered by a 5 - year warranty, so if you encounter any problems, don't hesitate to reach out.