Gents, Filter will clogg and nothing works. The hydraulic on a Dexta is under the top cover. About a one hour job to change the filter, and two if you let the fluid drain. Takes longer to take the seat off than the cover. Do mine @ every three years now, put a new filter in. Located on R/S tube from housing you can see with top off. Once top is off; loosen one bolt that holds tube, screw replaceable filter (@ $15) and (@ 5 Gl fluid). Replace tube. I filled mine by dumping it in to check plug level-then put the top cover back on. Use a cherry picker at seat bolt to lift.
on scale 1-10 (10=hard), this is a 4.