Hood release lever turs round and round. How to open the hood? L 4630
Resolution: Nut on mascot had lossened off and would not allow it to engage. Had to take off plastic covering on left side of hood. From there I cold see the latch. Use a piece of stiff wire to manually open the latch.You might want to study the illustrated drawings at Kubota.com, Messicks or other. Perhaps it will provide a clue that may help.
Kubota Illustrated Parts Diagrams
Good luck and let us know how your resolved opening the hood.