3.
MAINTENANCE,
      TROUBLESHOOTING
                                                           NOTICE
         ELECTRICAL SHOCK HAZARD            Do not apply paint, anti-corrosive sealant
         Do not open the equipment.         or contact spray to coating or plastic
                                            parts of the equipment.
         Only qualified personnel
         should work inside the             Those items contain organic solvents that
         equipment.                         can damage coating and plastic parts,
                                            especially plastic connectors.
3.1   Maintenance
      Regular maintenance is necessary to maintain performance. A monthly
      maintenance program should be established and should at least include the
      items listed in the table below.
                                    Maintenance items
             Item                                       Check point
      Connectors            Check that all connectors on the rear panel of the transponder
                            unit and monitor unit are firmly connected.
      Cabling               Check cabling for damage. Replace if damaged.
      Ground terminal       Check the ground terminal on the monitor unit and transponder
                            unit for rust. Clean if necessary.
      Ground wire           Check that the ground wire on the monitor unit and
                            transponder unit is firmly fastened.
      Monitor unit.         Dirt and dust should be removed from units with a soft, dry
      Transponder unit      cloth. For the LCD, wipe it carefully to prevent scratching,
                            using tissue paper and an LCD cleaner. To remove dirt or salt
                            deposits, use an LCD cleaner, wiping slowly with tissue paper
                            so as to dissolve the dirt or salt. Change paper frequently so
                            the salt or dirt will not scratch the LCD. Do not use solvents
                            such as thinner, acetone or benzene for cleaning any unit; they
                            can remove paint and marks and deform the equipment.
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