Kongsberg Simrad MF90, Installation Manual

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476671/B
6 Lower the hull unit carefully onto the installation trunk.
Important
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.
7 Align the mounting holes carefully.
8 Mount and tighten the relevant nuts and bolts.
First, tighten all the nuts to finger tight. Then work alternately on opposite sides of the
construction.
Use the following final maximum torque: 470 Nm
Related topics
Installing the hull unit, page 99
Mounting the hull unit on top of the installation
trunk (MF94)
A second type of hull unit is available for the MF90 system.
Prerequisites
The shipyard must provide all necessary tools and manpower. The following specific items
are required for this task:
• Loctite
• Torque wrench
• A crane (or other lifting device) capable of lifting the entire hull unit
The following specific items are required for this task:
• Silicone grease
• 24 x Pin bolts/Mounting bolts M24 x 90
• 24 x Nuts M24
• 24 x Washers M24
• O-ring 540-078749 (This item is included in the delivery.)
Items that are not included with the MF90 delivery must be obtained locally.
Simrad MF90 Installation Manual