Furuno USA Inc 9ZWRTR113 ユーザーズマニュアル

3.  MAINTENANCE, TROUBLE SHOOTING

Regular maintenance is important for good performance. Check the points mentioned 
below every 3 to 6 months to keep the antenna unit in good working order. 

Check points every 3 to 6 months
Cable

Check that all cables are firmly 
connected and are not damaged.

•  Connect a cable if it has loosened.
•  Replace damaged cables.

Exposed 
bolts and nuts

Check that bolts and nuts are not 
corroded and are securely fas-
tened.

•  Replace corroded bolts.
• Tighten loosened bolts. 
•  Coat new bolts with marine sealant.

Radiator

Dust, dirt and salt deposits on 
the radiator cause signal attenu-
ation, resulting in loss of sensitiv-
ity. 

•  Wipe radiator with a freshwater-

moistened cloth.

•  The radiator is made of AES (Acry-

lonitrile-Ethylene-Styrene) resin. 
Therefore, do not used gasoline, 
benzene and the like to clean the ra-
diator.

•  If the radiator is iced, use a wooden 

or plastic headed hammer to re-
move the ice. DO NOT use a steel 
hammer.

Ground con-
nection

Check for tight connection and 
rust.

•  Fasten if loosened.
•  Remove rust if present.

Check points every year

Check the scanner unit for rust, 
corrosion and chipped paint.

•  If the scanner unit has rusted or the 

paint has chipped, paint the affected 
area.

•  Paint only the scanner unit. Do not 

paint the antenna (see figure be-
low). Paint on the antenna can 
cause loss of sensitivity and crack 
the antenna.

: Do NOT paint.

: Painting area