580k phase 1 fluid specs

morning guys, hate to be like this being my first post as a newbie but i am in a predicament. i have a 580k #1 that i hardly use much but yesterday it blew the rubber hose at the bottom of the fluid tank, hyd return, and now it is sitting there empty. what do i put back into the tank for the correct hyd oil. ie, not brand names so much as to what viscosity is required. also while i am asking what is the proper fluid to be putting into the transaxle on this old girl. like i said i hate to come out asking stuff but i need to get this out of the field. thanks: rick