Kongsberg Simrad MF90, Installation Manual

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122
476671/B
Hull unit and transducer alignment
Irrespective of the physical hull unit orientation, the transducer shall not be mechanically
aligned.
Hull unit alignment is done in the MF90 software by rotating the echo presentation in the
display view.
Related topics
Installing the hull unit, page 99
Inspecting the transducer
The transducer surface must be inspected for potential damage that may have an effect on
the operation.While the vessel is still in dry dock, the transducer surface must be inspected
for potential damage that may have been inflicted during the installation.
Prerequisites
Neither tools nor instruments are required. If you find damage, you need a high resolution
camera to document it.
Context
The transducer is covered with a thick red or black protective coating made of a special
plastic type. The protective coating is a vital part of the transducer. It is very important that
neither this coating nor the internal parts of the transducer are damaged during the handling,
installation or cleaning. Any holes and/or scratches in the transducer surface will allow
water to penetrate the transducer. If a leak occurs, the transducer must be replaced.
Procedure
1 Lower the transducer using the hand crank.
a Use a spanner to open the door on the Motor Control Unit.
b Locate the hand crank inside the Motor Control Unit.
c Remove the hand crank from its storage position.
d Remove the plastic plug on the top cover of the hull unit.
e Mount the hand crank onto the stub shaft through the hole in the top cover.
f Locate the brake release screw on the motor.
Simrad MF90 Installation Manual