The guide valve is just what the change lever hooks around. Based on which equipment is chosen, the handbook valve feeds hydraulic circuits that inhibit specific gears. As an example, If your shift lever is in third gear, it feeds a circuit that stops overdrive from participating. The handbook transmission https://andreaimmm.blog2learn.com/81842373/the-smart-trick-of-gearbox-auto-that-no-one-is-discussing