Using this door latch tongue is quite simple. Just locate the old latch tongue on your Vulcan Dishlex Mark 7/8 dishwasher and replace it with this new one. It should fit easily as it's designed for your model. When handling the latch tongue, be gentle to avoid any damage. Since this part is no longer available from the manufacturer, try to install it carefully to make it last. For maintenance, you can clean it with a soft, damp cloth from time to time to keep it in good condition. And remember, it's fully guaranteed, so if you face any issues, you're covered.