Exploded product diagrams, like those available in the diagram systems from https://www.visionspares.com/ are a great visual representation of how a product is created and also how it can be constructed. It enables the user to be able to see inside a product, which would otherwise be difficult, unless they took it apart.
It is a popular way to show instructions on how to build items and many people will be familiar with how they look. They effectively open up the product on paper and show how components relate and are connected to one another. This is particularly important if your end users need to construct any part of your products themselves, or if other people need to understand how to use them or repair them.
They can help to replace the need for lengthy written instructions which can be difficult to create to ensure that everyone understands what you are asking them to do and they may need to be translated into a number of different languages. Drawings are not affected by language and so they can be incredibly useful for showing the intricate details of the internal workings of products.
There are systems available like the one mention above that can help you to create the exploded product views that you need for the items that you manufacture and this can help your customers to gain a further understanding of how your items function overall.