Sea Tel 9497B-21, Инструкция по установке и эксплуатации, Страница: 35 / 104

9497B-21 C/Ku-Band TVRO Installation
4-17
4.6. Installing The ADE
4.6.1. Hoist
WARNING:
Hoisting with other than a webbed four-part sling may result in
catastrophic crushing of the radome. Refer to the specifications and drawings for the
fully assembled weight of your model Antenna/Radome and assure that equipment used
to lift/hoist this system is rated accordingly.
CAUTION:
The antenna/radome assembly is very light for its size and is subject to
large swaying motions if hoisted under windy conditions. Always ensure that tag lines,
attached to the radome base frame, are attended while the antenna assembly is being
hoisted to its assigned location aboard ship.
1. Assure that the antenna is restrained before hoisting. Check that all nuts on the base
frame assembly are tightened according the torque values listed below:
2. Using a four-part lifting sling, and with a tag line attached to the radome base frame,
hoist the antenna assembly to its assigned location aboard ship by means of a
suitably-sized crane or derrick.
3. The radome assembly should be positioned with the BOW marker aligned as close as
possible to the ship centerline. Any variation from actual alignment can be
compensated with the AZIMUTH TRIM adjustment in the ACU, so precise alignment is
not required.
4.6.2.
Bolt, or weld, the legs of the radome base frame directly to the ship's deck. If the deck is uneven or not level,
weld clips to the deck and attach them to the legs of the radome base frame. When completed the radome
base must be level.
Install Antenna/Radome/Baseframe
4.7. Install BDE Equipment
4.7.1.
Refer to the Antenna Control Unit manual for installation of the ACU and the Terminal Mounting Strip.
ACU & TMS
4.7.2.
Refer to the vendor supplied manuals for installation of the other below decks equipment.
Other BDE Equipment
4.8. Cable Terminations
4.8.1.
The TX and RX, or TVRO IF, cables must be inserted through the cable strain reliefs at the base of the radome.
Apply RTV to the strain relief joints and tighten the compression fittings to make them watertight. Attach the
pedestal cable adapters to the TX and RX, or TVRO IF, cables from below decks. Refer to the System Block
Diagram.
At The Radome
AC Power cable for the Antenna Pedestal and RF Equipment is routed into the AC Power Breaker box and
connected to the breaker terminals.