Blue Shark (600-4129) Troubleshooting Faxback Doc. # 6880 If the racer does not operate properly, check the following: Be sure that the transmitter's batteries are fresh and that the racer's battery pack is fully charged. Be sure that the batteries are properly installed/connected. Check for interference from other nearby radio-controlled devices. Interference can also come from overhead high-voltage wires and power transformers. Be sure the racer is not out of the transmitter's range. The range varies depending on the surrounding terrain and battery strength. If anything (buildings, fences, and so on) is between the transmitter and the racer, the range is reduced. (CJD/all-8/18/94)