When the hitch is turned toward the side the top side of a rubber pad is exposed. Spray this with lithium grease. You can get it at Home Depot When the hitch is new sometimes they are very hard to move by hand, but they are suppose to. You may have to hook it up to your TV to move it. It will take a while for the grease to work over all the pad. I learned about the from OC. A factory rep showed him how to do it.
Sorry to hear about your husband. Backing an RV is not hard, just take it slow, practice, and be patient.
Terry and Carol
Daytona Beach, FL
2013 F150 XLT, SuperCab, Ecoboost
2010 Rockwood 8285WS
2014 - 57; 2015 - 91; 2016 - 171