When the instrument is shipped, the tribrach clamp is held firmly in place with a locking screw to prevent the instrument from shifting on the tribrach. Before using the instrument the first time, loosen this screw with a screwdriver. And before transporting it, tighten the locking screw to fasten the tribrach clamp in place so that it will not shift on the tribrach.
• The FX handle can be removed. When operating the FX with the handle attached, always make sure that the handle is securely fixed to the FX body with the handle locks.