282
442704/A
Procedure
Note
Do not open the unit. There are no serviceable parts inside. High voltages are used. You
may be exposed to electric shock.
1
Make sure that the Transceiver Unit is kept clean and dry.
2
Make sure that the unit is not exposed to excessive dust and vibrations.
3
Check for physical damage to the cabinet and/or the cables.
4
Remove dust and salt water residue with a soft cloth moistened in fresh water. Use a
mild detergent.
Note
Do not
use strong solvents.
5
Check the heat exchanger visually for excessive amounts of dust and dirt.
If required: Clean the filters and fans inside the heat exchanger. See the separate
procedure.
Related topics
Maintenance procedures, page 186
Preventive maintenance, page 272
Preventive maintenance schedule, page 273
Preventive maintenance procedures, page 278
Environmental requirements, page 655
Inspecting and cleaning the heat exchanger
The purpose of the heat exchanger is to provide a stable, clean and temperature controlled
environment for the electronic circuitry inside the Transceiver Unit. The heat exchanger
also inhibits dust and dirt particles from entering the transceiver. The powerful fans will
draw dust and dirt particles into the unit. The fans must be inspected and cleaned at regular
intervals
Prerequisites
The following specific tools are required for this task:
• Vacuum cleaner (with plastic or rubber nozzle)
• High pressure air supply (if necessary)
You will also need a commercially available mild detergent and a lint free cloth.
Simrad ST90 Reference Manual
Summary of Contents for Simrad ST90
Page 1: ...kongsberg com simrad Simrad ST90 REFERENCE MANUAL ...
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Page 337: ...442704 A 335 Related topics Sonar views page 326 User interface ...
Page 413: ...442704 A 411 Related topics Menu system page 375 Display menu page 384 Menu system ...
Page 631: ...442704 A 629 Related topics Concept descriptions page 626 Concept descriptions ...
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Page 688: ... 2021 Kongsberg Maritime ISBN 978 82 8066 211 8 ...
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Page 690: ...Reference Manual Simrad ST90 ...