Using your Samsung washing machine lint filter is a breeze. First, locate the filter compartment in your washing machine. It's usually at the front, near the bottom. Open the compartment door and carefully remove the old filter. Then, take your new lint filter and place it into the compartment, making sure it fits snugly. Close the compartment door. That's it! As for maintenance, it's a good idea to clean the filter after every few washes. You can do this by simply rinsing it under running water to remove any lint or debris. When it comes to replacing the filter, if you notice that it's getting clogged often or not performing as well, it's time for a new one. Always keep in mind to handle the filter gently to avoid damaging the stainless - steel mesh. And remember, this filter is fully guaranteed, so if you run into any issues, we're here to help.