Using this closing bar is easy. First, make sure your fridge is unplugged for safety. Remove the old bar carefully from between the two doors. Then, place the new bar (part # DA97 - 17722P) in the same position. Ensure it fits snugly. Plug your fridge back in and check if the doors close properly. As for maintenance, keep the bar clean by wiping it with a soft, damp cloth regularly. Avoid using harsh chemicals as they may damage the bar. If you notice any issues with the bar, like it not closing the doors well, don't hesitate to contact us. And always double - check your fridge model before making a purchase to ensure this part is the right fit for your appliance.