stove is 7 years old, never cleaned. I need to remove the baffle however I cannot get the frontmost secondary air tube out. I can remove the cotterpin and slide the tube to the right far enough for the left side of the tube to drop down, but there is not enough room to slide the left side far enough to the left, for the right side of the tube to drop down. Thus, I cannot get the baffle down. Has anyone else had a problem removing this tube without bending it? How did you do it? Thanks Fred