Using the DeWalt DCF900B impact wrench is easy. First, make sure you have a fully - charged 20V MAX* battery (sold separately) and connect it to the tool using the BATTERYGUARD™ connection. When starting a job, select the appropriate speed mode using the 4 - mode push button switch. For jobs where precision is key, use the PRECISION WRENCH(TM) mode to avoid overtightening or run - off. To fasten or loosen, just pull the variable speed trigger. The built - in LED work light can be used to illuminate dark work areas. When it comes to maintenance, keep the tool clean after each use. Wipe it down with a dry cloth to remove dust and debris. Check the battery connection regularly for any signs of wear or damage. Also, make sure to store the tool in a dry place when not in use. Remember, this is a powerful tool, so always wear appropriate safety gear like safety glasses and gloves when operating it.
