I dropped the plow earlier and it will not come back up, I have a Meyer plow on a chevy chyanne that is the first I have ever own, it is used. The plow will move from left to right but will not go up and down, when I try to move the plow upward it tends to move to the left. What I am thinking is that I have frozen something up, is this true? And if so does anyone have some trick to fix this? Thank you very much I will greatly appreciate this! Merry Christmas!!!!!