I decided to take my Vista Sonic apart to give it a good clean and check out. Unfortunately when removing the bridge the roller bar fell out. I am not sure how the roller bar sits under the bridge. Is it supposed to be fixed or free as there appears to be some weld marks on the roller bar. Tried free and it falls into the body cavity. I am sure this is simple if you know how but unfortunately i do not. Thanks in advance for any assistance.
Bill