Using this dryer door latch tongue is simple. Just find the right place in your dryer door and install it according to the general installation process for dryer parts. When using your dryer, press the door button as usual, and the latch tongue will do its job to keep the door closed. As for maintenance, you don't need to do much. Periodically check if the latch tongue is still firmly in place. If you notice any looseness, you may need to tighten it up. Avoid using sharp objects to touch the latch tongue as it could damage the plastic. And always refer to your dryer's user manual for more specific instructions. With proper use and a little care, this latch tongue will serve you well for a long time.