Small Engines (Lawn Mowers, etc.): Snapper hydraulic fluids, hydraulic valve, hydraulic fluids

Question
I bought a used Snapper LE 1433 Hydro Transmission tractor and it is low on the fluid. I can not find any info or manuals that describe what  fluid(s) to use in the transmission. Also, is there any service required of the hydraulic valve itself? THanks  

Answer
 Hello Rich:

 If the Valve isnt Giving Any Problems, then No Worries. Use SAE 30 Engine Oil. I had this Question Asked a Few Weeks ago and Ended up Calling Snapper and Talking to the Tech. Hope this Helps. I am here if you Require more Assistance. Thanks.

 Good Luck

 Respectfully

 John