[Ford-ferguson] TO-35

[Primo Campos]

I need some info on a TO-35..My PTO started acting  up last week so I check 
the fluid and it
was a mess. Somehow water got into the  fluid. I will drain it today but 
need to know how much
and what  weight of oil to use.After I drain it will I need to flush before 
Adding  the new fluid?
I guess water got in when it was left out side during a rain storm but where 
could  it went in .

Thanks
?