The screw in the front and back ends of the laser tube is not allowed to be moved, otherwise the out power will be declined, even the tube will be scrapped.
fur ee hore iyo dib ugu shishaysa ee tube laser ah lama oggola in la dhaqaajiyo, haddii kale awood ah dibaddaa lagu diiday doonaa, xataa tuubada waa la burburinayaa.