John deere 843h buncher

[Snowmobiler14]

Hey guys I just bought a john deere 843h feller buncher and I need to put some hydraulic fluid in it. What kind does it take and where do you fill it on this machine?

[kiko]

Oil spec J20C.  Sitting in seat right rear is the hydraulic tank. The is a cap there on the top .  Be sure and check the oil level of the pump drive gearbox behind engine and the transmission gear box.