I have a 2007 Four Winns trailer with a Tie Down 70LP actuator. I can't get the latch to flip up. I tried lubing everything but but it didn't work. I had to pull the pin out of my hitch receiver and drive my truck forward to disconnect from the trailer. What do I need to do? I tried applying a lot of force to the latch, but it didn't work. I don't want to pry on it too hard if there's something else I need to do before it will come up.