Simrad SC90, Руководство по установке

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419050/B
is clean and undamaged, because it must be watertight after the transducer dock
has been installed.
• The top mating surface of the transducer dock must be protected with a wooden cover
at all times until the hull unit is installed. It is very important that this surface is clean
and undamaged, because it must be watertight after the hull unit has been installed.
Procedure
1 Attach the necessary tackles to the transducer dock, and make sure that the unit is
lifted with the correct side up.
Verify that the bottom of the transducer dock will match the flange on the gate valve.
2 Lower the transducer dock down into the hull unit compartment, but stop when the
unit is a few centimetres above the gate valve.
Note
Do not damage any of the mating surfaces.
3 Prepare the gate valve.
a Remove the protective cover from the mating surface on the gate valve.
b Verify that the mating surface on the gate valve is clean and undamaged.
c Wipe a thin film of silicone grease on the O-ring and place it in the groove
on the gate valve.
4 Attach the nuts and washers while the transducer dock is still suspended.
5 Lubricate the threads with a high grade commercial anti-seize lubricant.
6 Orientate the transducer dock so that it points in the desired direction.
7 Lower the transducer dock carefully onto the gate valve while tightening the nuts.
8 Disconnect and remove the tackles from the transducer dock.
9 Tighten the nuts to torque 472 Nm.
10 Depending on mechanical support provided by the existing decks and/or bulkheads,
design, manufacture an install additional mechanical support for the transducer
dock.
The necessity of such mechanical support must be decided by a naval architect.
Simrad SC90 Installation Manual