442704/A
285
Related topics
Maintenance procedures, page 186
Preventive maintenance, page 272
Preventive maintenance schedule, page 273
Preventive maintenance procedures, page 278
Environmental requirements, page 655
Visual inspection of the hull unit
Regular inspections of the hull unit is required to make sure that it operates properly.
Prerequisites
Neither tools nor instruments are required. You will however need a commercially available
mild detergent and a lint free cloth.
Two persons are needed to do the task.
• One person must stay on the bridge in order to operate the ST90 system.
• One person must stay in the sonar room to make sure that the ST90 system starts, and
that the hull unit works properly.
Proper oral communication must exist between the bridge and the sonar room.
The steps marked [
Bridge
] are done on the bridge.
Procedure
1
Make sure that the hull unit is kept clean and dry.
2
Make sure that the unit is not exposed to excessive dust and vibrations.
3
Make sure that there are no corrosive attacks on the hull unit, mounting flange,
installation trunk, support brackets or other parts of the installation.
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
[Bridge]
: Make sure that you have sufficient water depth below the keel before you
lower the transducer.
6
[Bridge]
: Lower the transducer to its bottom position.
7
Make sure that the transducer can be lowered and hoisted without complications or
obstacles.
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 ...
Page 687: ......
Page 688: ... 2021 Kongsberg Maritime ISBN 978 82 8066 211 8 ...
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Page 690: ...Reference Manual Simrad ST90 ...