Sea Tel 9797B-70 C-Band TX/RX, Installation And Operation Manual

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9797B-70 C-Band TXRX Installation
4-3
Refer to the vendor supplied manuals for installation of the other below decks equipments.
Prepare other locations throughout ship for any other equipment which is not co-located with the ACU.
4.3.5. Installing The System Cables
Install appropriate cables from Below Decks Equipment to the ADE Location(s).
The cables must be routed from the above-decks equipment group through the deck and through various ship
spaces to the vicinity of the below-decks equipment group. When pulling the cables in place, avoid the use of
excessive force. Exercise caution during the cable installation to assure that the cables are not severely bent
(proper bend radius), kinked or twisted and that connectors are not damaged.
Assure that the cables have been run through watertight fittings and/or will not permit water entry into the
ship when the installation is completed. After cables have been routed and adjusted for correct cable length
at each end, seal the deck penetration glands and tie the cables securely in place.
4.4. Assembling the ADE
4.4.1. Preparing for Assembly of the ADE
Read this entire assembly procedure before beginning.
Refer to the System Block diagram, General Assembly, Base frame Assembly, Radome Assembly and Radome
Installation Arrangement drawings for your system.
Select a secure assembly site that provides enough area to work with the large radome panels while sub-
assembling the base frame, sections of the radome, Antenna Pedestal and Reflector & Feed. The area should
be a clean, flat location, free of rocks & debris (i.e. concrete). The site should also provide protection from
wind, rain and other adverse weather. A hoist, or small crane, is needed to assemble these sub-assemblies to
form the final ADE Assembly.
As an example, you might sub-assemble everything on the pier where the ship will tie up, then use the crane
to put the sub-assemblies together and lift the whole ADE up to the mounting location on the ship.
You can change order of these steps, however, in the end the objective is to have a well sealed
radome with flanges that are clean of excess caulking. In addition it is important that the ADE is
structurally sound for severe weather conditions.
4.4.2. 144” Radome, Base frame and Antenna Pedestal System Assembly
Refer to the System Block diagram, General Assembly, Radome Assembly and Base frame Assembly drawings
for your system.
NOTE: Unless otherwise indicated, all nuts and bolts should be assembled
with Loctite 271 or its equivalent.
WARNING: Assure that all nut & bolt assemblies are tightened according the
tightening torque values listed below:
SAE Bolt Size Inch Pounds Metric Bolt Size Kg-cm
1/4-20 75 M6 75.3
5/l6-18 132 M6 225
3/8-16 236 M12 622
1/2-13 517
1. Select a secure assembly site that provides enough area to work with the large radome panels. Place
the radome base pan on temporary support blocks at least 22 inches high.
2. Assemble the radome base frames eight legs and eight braces using the hardware provided. Loosely
assemble all legs and braces aligning all matching marks before tightening any of the bolts. Insure
that a split washer is used under each nut.