This is what the manual says,my dealer crossed it out because it is a misprint
not that he was aware of it until i asked him to show me where it was.the plug is further to the front and the oil that came out following the manual directions was hydrolic oil.
The plug was there for when the tractors were used in rice fields ,a good idea but something must of got lost in the translation of that manual page.
To be safe i hook my clutch peddle on the hook provided if i am not using the tractor for a while
chach