Sperry Marine NAVIKNOT 600 SD, Operation, Installation And Service Manual

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NAVIKNOT 600 SD 056353/J
Maintenance by Shipboard Personnel 4-1
Chapter 4: Scheduled Maintenance
4.1 Maintenance by Shipboard Personnel
NAVIKNOT Electronics Unit, CDU and Antenna Unit
The electronic components of the NAVIKNOT 600 SD system are solid-
state devices and contain no consumable parts. Therefore, no set main-
tenance schedule is required.
The satellite antenna unit should regularly be checked visually to detect
any signs of mechanical damage or wear and to make sure it is still
aligned correctly to the vessel’s fore and aft axis.
The CDU front plate should be kept clean and the system’s cables and
connectors should regularly be checked visually to detect any signs of
damage or deterioration.
Doppler Transducer and Preamplifier D
Depending on the type of transducer installed, certain maintenance pro-
cedures are to be carried out at regular intervals, such as cleaning of the
transducer face and lubrication/overhaul of the sea valve, if applicable.
The recommended maintenance schedule and procedures are described
in the installation, maintenance and service instructions for the Doppler
transducers and preamplifier D, document no. 5005-0125-01.
CAUTION
Risk of damage
The CDU front plate is made of clear polycarbonate.
Do not clean the front plate with organic solvents, acetone or any other
substance which could damage or discolor plastic.
Use only water and soap or a mild detergent to clean the front plate.