If you got some dirt down in that oil I recommend that you change it before you start the mower up. There is a filter on there but it's usually a high micron filter, around 40, and it does not get all of the dirt.
I rarely check the hydro oil, maybe once a year, in my Dixie and dirt contamination is the very reason. If you don't see oil leaking out of the hydro system somewhere then there is no reason to check it. The only place the hydro oil can go is out of a leak and if you don't see a leak then it has nowhere to go.
A lot of owner's manuals recommend against checking the hydro oil often for this very reason.
I rarely check the hydro oil, maybe once a year, in my Dixie and dirt contamination is the very reason. If you don't see oil leaking out of the hydro system somewhere then there is no reason to check it. The only place the hydro oil can go is out of a leak and if you don't see a leak then it has nowhere to go.
A lot of owner's manuals recommend against checking the hydro oil often for this very reason.
