Kongsberg Simrad MF90, Installation Manual

Page: 104 / 426

102
476671/B
Note
It is the installation shipyard's responsibility that the installation trunk and the hull unit
gantry are properly secured against vibrations and sudden movements caused by the vessel's
behaviour in the sea.
The final design and the installation must be approved by the classification society. Without
a proper mechanical support for the hull unit gantry, the guarantee will be void!
Related topics
Installing the hull unit, page 99
About the hull unit installation, page 100
O-ring/Rubber gasket
Depending on which hull unit and installation trunk you have chosen, a dedicate gasket or
o-ring is provided with the delivery.
O-ring
This O-ring ensures a watertight connection between the installation
trunk and the bottom of the transducer shaft sleeve. During the
installation process, make sure that this O-ring is kept safe from
damage, and that the top of the installation trunk is kept clean, smooth
and without physical damage such as scratches or dents.
Proper O-ring lubrication must be applied before the hull unit is
mounted on top of the installation trunk.
Rubber gasket
This gasket ensures a watertight connection between the installation
trunk and the bottom of the transducer shaft sleeve. During the
installation process, make sure that the gasket is kept safe from
damage, and that the top of the installation trunk is kept clean, smooth
and without physical damage such as scratches or dents.
Note
Make sure that the gasket is undamaged without cracks or signs of wear.
Make sure that the gasket is NOT covered with grease or lubricants.
If you suspect that the gasket is damaged, replace it. If the gasket has been contaminated
with dirt, grease or lubricants, it must be replaced.
Simrad MF90 Installation Manual