From the failure phenomenon, belongs to the playback as go with the system resistance is big, the heavy load caused by automatic protection. Open the cabinet, check for drum, main shaft, belt and pulley, set to go with empty machine state, everything is ok. Try again after loading with, is still a few minutes outage protection. Tape is careful observation, discover with box with tape is not in a plane. Try to pressure, with cover to find there is a large gap, the try to put on, not found the phenomenon of automatic stop. Which means stop reason is loaded with box after the lock is not tight cause drag tape difficult and protect downtime. Remove the tape, watching with CangSuo buckle hook, has opened down, although can lock up in warehouse, but the tape can't to go with institution run in a plane, often appear automatically protect downtime phenomenon. Repair method is to use nippers by clamp lock hook, throw up, calibrated to the correct location.Qbqservice manual download site