First class 1 shift on my own

It is not unusual for a 5th wheel which requires adjustment or overhaul to be very difficult to release the handle when uncoupling. As the helping driver said: apply trailer park brake and reverse slighlty, unit handbrake on and pull handle again. Sometimes this can be a two man job. This is one of those things you learn as you come across the problem. As for the legs issue If you have got the unit air suspension right up and still can’t move the winding handle don’t forget that you can lower the trailer suspension a little which will bring the front end of the trailer up. Remember to reset it to ride height for travel and that a travel position ride height check is part of your walk around check procedure. Some legs are very difficult to wind up or down because of damage.