JD 2320- steering is very difficlult

[Timb2828]

I have a JD 2320 with power steering and over the last few weeks the steering has become extremely difficult to turn. The unit is less than 5 years old with 150 hrs on it. Any suggestion? usually have it services every other year by the dealer.

 

[Jriffe108]

Make sure it's not in 4wd.