Using this washing machine agitator is easy. First, make sure your washing machine is turned off and unplugged. Remove the old agitator from the splined shaft in the center of the washing machine tub. Then, place the new agitator on the splined shaft and secure it with a bolt (you'll need to provide your own bolt). If you want to use the fabric softener cap, simply attach it to the agitator. When loading your laundry, try not to overload the machine as it can put extra stress on the agitator. For maintenance, after each use, wipe down the agitator to remove any lint or debris. Periodically check the connection between the agitator and the shaft to make sure it's tight. If you notice any unusual noises or problems during the washing cycle, stop the machine and check the agitator for damage.