3-1
3. MAINTENANCE & TROUBLE-
SHOOTING
This chapter provides maintenance and troubleshooting procedures for the operator.
3.1 Maintenance
Regular maintenance is essential for good performance. Check the points shown in
the table below.
Check Point Action Remedy, remarks
Cable Check that all cabling is firmly con-
nected and is not damaged.
• Connect the cable if it has
loosened.
• Replace damaged cables.
Connectors on
units
Check for tight connection. • Reconnect as necessary.
Ground on
units
Check for tight connection and rust. • Fasten if loosened.
• Remove rust if present.
Dust Remove the dust or dirt from the units
with a soft, dry cloth.
• Do not use chemical clean-
ers to clean the equipment
because they can remove
paint and markings.
Transducer Marine life on the transducer face will
result in a gradual decrease in sensi-
tivity. Check the transducer face for
cleanliness each time the boat is dry-
docked.
• Carefully remove any ma-
rine life to prevent the dam-
age to the transducer.
• Do not paint the transducer.
• Do not use chemical clean-
ers to clean the transducer.
WARNING
NOTICE
ELECTRICAL SHOCK HAZARD
Do not open the equipment.
This equipment uses high
voltage that can cause
electrical shock. Only quali-
fied persons can work inside
the equipment.
Do not apply paint, anti-corrosive
sealant or contact spray to plastic
parts or equipment coating.
Those items contain products that can
damage plastic parts and equipment
coating.
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