Using the Knaack Cart Armour CA - 01 is a breeze. First, gather all the parts included in the mobile cart paneling system. You can install it on a new cart or retrofit it on an existing one. It should take you less than 15 minutes to set up the 16 - gauge steel panels. Simply interlock the panels around your Rubbermaid* cart model 4520 - 88. Once installed, you can use your preferred padlock in the recessed design to secure the cart. If you need to power any equipment inside the cart, use the electrical pass - through with the grommet to run the cord safely. When it comes to maintenance, wipe the powder - coated finish regularly with a soft cloth to keep it clean. Check the panels and the lock periodically for any signs of wear or damage. The CA - 01 comes with a 3 - year warranty, so if you encounter any major issues, reach out to the support team. *Remember, RUBBERMAID is a trademark of its respective owner, and there's no connection between Knaack LLC and that owner.