Using these economical material racks is quite straightforward. For the SR - WM, just mount it on the wall as per the instructions. Make sure to use the right tools and follow the assembly steps to ensure a secure fit. When loading, distribute the weight evenly on the arms to not exceed the 1,000 - pound capacity. The SR - SS can be set up on a flat surface. Assemble it following the included guide. Don't overload it beyond 2,000 pounds. The SR - V should be placed on a stable floor and assembled before use. Keep the load within 2,000 pounds. As for maintenance, regularly check the zinc - plated finish. If there are signs of rust, you can clean it gently with a mild cleaner. Avoid using harsh chemicals that could damage the finish. When moving or transporting the racks, handle them carefully to prevent any dents or damages. Also, always double - check the assembly after any major movement to ensure everything is still secure.