When you say pull up, I'm trying to take the piece the arms are attached to and separate it from the base to rotate the entire assembly similar to what you have to do take it from the position it's in fighter mode to gerwalk or battroid. It just appears it's locked in and for some reason (may by having it in the wrong position?) it won't seem lift back up so that I can rotate it back to the right position.
I'm willing to entertain taking it apart at this point but don't know how to proceed.