Welcome I own a 250 AS;
Behind and under the drivers seat there is a hole on the right hand side. From behind and to the right is a 24mm nut, if you unscrew this the hydraulic fluid is there. It will take 7 liters from empty.
Thanks for the reply. My father and law and I changed the fluid and the clutch and we are up and running again. We use ours for bush hoging but it is not the best without a two stage clutch. How do you make out with your blower?