If that machine has the Melroe valve you should search for the "melroe control valve manual". There is a component repair manual for it that walks you through everything you need. Also check https://www.bobcatpartsonline.com/ and look up your model and you should be able to find at least drawings of the parts in the valve. From what I remember some of the valves had subtle differences in where and how you put the seals on/in. Some versions the seals go inside the spool bore in the valve and others you put the seals on the spool first and slide it in the valve.