IN MOST CASES, A BLACK & DECKER REPRESENTATIVE CAN RESOLVE YOUR PROBLEM OVER THE PHONE. IF YOU HAVE A SUGGESTION OR COMMENT, GIVE US A CALL. YOUR FEEDBACK IS VITAL TO BLACK & DECKER. KEY INFORMATION YOU SHOULD KNOW: • The guard must be installed before trimming - if not, the motor will overheat, and void your warranty. • When replacing the line, use only 0.050” twisted line - otherwise the unit may not function properly. • DISCONNECT TOOL – When not in use, when replacing line, or prior to clean