Furuno USA Inc 9ZWRTR113 Manuale Utente

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3.
MAINTENANCE, TROUBLE 
SHOOTING
Periodic checks and maintenance are important for proper operation of any electronic 
system. This chapter contains maintenance and troubleshooting instructions to be fol-
lowed to obtain optimum performance and the longest possible life of the equipment. 
Before attempting any maintenance or troubleshooting procedure please review the 
safety information below and at the front of this manual. If you cannot restore normal 
operation after following the troubleshooting procedures, do not attempt to check in-
side any unit; there are no user serviceable parts inside. Contact your dealer to check 
the equipment.
Do not apply paint, anti-corrosive 
sealant or contact spray to coating or 
plastic parts of the equipment. 
Those items contain organic solvents 
that can damage coating and plastic 
parts, especially plastic connectors.
WARNING
NOTICE
Do not open the equipment.
Hazardous voltage which can 
cause electrical shock exists 
inside the equipment. Only 
qualified personnel should work 
inside the equipment.
Turn off the antenna unit 
before servicing the unit. 
Post a warning sign near the 
switch indicating it should 
not be turned on while the 
antenna unit is being 
serviced.
Prevent the potential risk of 
being struck by the rotating 
antenna.
A transmitting radar antenna 
emits electromagnetic waves, 
which can be harmful, 
particularly the eyes.
Wear a safety belt and hard 
hat when working on the 
antenna unit.
Serious injury or death can 
result if someone falls from the 
radar antenna mast.