Welcome to the forum and the world of Shopsmith. If your Mark V came with the Owners Manual I recommend reading through it to learn the operation and maintenance of your new to you tool. If it came with the self study guide you can go through the exercises to learn and use the functions. Lastly if it came with the book Power Tool Woodworking for Everyone that will show more uses for the Shopsmith. The most important advice I can give you is follow the maintenance needs of the machine. Proper lubrication in the headstock and waxing the parts will keep your Shopsmith running for many, many years to come. Follow this with proper safety practices.
Mark V 520 S/N 09-11-01 completely upgraded to Mark 7, with all SPT's & more.
Model 10ER S/N R64000 first one I restored on bench w/ Shopsmith metal ends & retractable casters. Has Speed Changer, Model 4E Jointer, Jig Saw with lamp, a complete set of original accessories & much more.
Model 10E S/N 1077 oldest one I have restored. On bench w/ Shopsmith metal ends & retractable casters.