If would definitely help us help you if you would provide us with the model and serial numbers of your unit. Knowing this would tell us exactly which transaxle you have and maybe even find a manual. Without we’re only giving you our best guess.
Thanks for reply.Tag on tractor frame model149-660-100. Serial #000782509.Transmission has two ported hydro-relief valves on top which have just been replaced.Now I need to drain and replace old fluid and filter.