Using this ladder is easy. First, make sure the locking mechanism is engaged to keep the ladder stable. Then, climb up carefully onto the non - slip platform. You can use it for various tasks at different working heights up to 9 FT. When you're done, disengage the locks carefully. As for maintenance, regularly check the locking mechanism to ensure it's working properly. Wipe down the anodized aluminum finish to keep it looking good. Also, inspect the anti - slip platforms and casters for any signs of wear or damage. And always follow the ANSI, CSA, and OSHA standards for safe use.