Maintenance - Furuno DRS12A-NXT Installation Manual

3.1

Maintenance

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
point
Check points every 3 to 6 months
Cable
Exposed
bolts and
nuts
Adhesive
on the
bolts, nuts
and cable
clamps
Radiator
Ground
connection
Check points every year
Action
Check that all cables are firmly
connected and are not damaged.
Check that bolts and nuts are not
corroded and are securely fas-
tened.
Check that adhesive has not fall-
en off or cracked.
Dust, dirt and salt deposits on
the radiator cause signal attenu-
ation, resulting in loss of sensitiv-
ity.
Check for tight connection and
rust.
Check the scanner unit for rust,
corrosion and chipped paint.
22
3. MAINTENANCE, TROUBLE SHOOTING
Remedy, remarks
• Connect a cable if it has loosened.
• Replace damaged cables.
• Replace corroded bolts.
• Tighten loosened bolts.
• Coat new bolts with adhesive.
• Deteriorated adhesive may cause
water leakage into the unit or corro-
sion of the bolts, nuts and cable
clamps.
• If the adhesive is fallen off or
cracked, apply adhesive to cover
the spot.
• If the adhesive is severely deterio-
rated, peel off the adhesive and ap-
ply the adhesive again on the spot.
• 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.
• Fasten if loosened.
• Remove rust if present.
• If the scanner unit has rusted or the
paint has chipped, paint the affected
area of the scanner unit.
• Do not paint the antenna (see figure
below). Paint on the antenna can
cause loss of sensitivity and crack
the antenna.
: Do NOT paint. : Painting area