COBHAM Sea Tel 9711-56 IMA C Band, Installation Manual

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Sea Tel 9711-56 IMA Stowing the Antenna
18-1
EAR Controlled - ECCN EAR99
18. Stowing the Antenna
This antenna must be properly stowed if the ship will be underway while AC power to the Above Decks Equipment
(ADE) is de-energized. Failure to do so may void your warranty.
CAUTION: There are two stow restraints that MUST be installed on this antenna pedestal
if the ship will be underway while the Above Decks Equipment is de-energized .
This antenna has brakes on the motors to help prevent damage to the antenna against short power outages while
underway; however, it is strongly recommended that AC Power to the ADE and BDE be supplied from an adequately
rated Un-interruptible Power Supply (UPS) to protect the antenna.
18.1. Installing the Stow Restraints
WARNING: Antenna pedestal must be properly restrained (stowed) to prevent
damage to wire rope isolators, isolator springs and/or antenna pedestal
mechanism during underway conditions when power is removed from the
antenna assembly.
The normal operating condition for the Sea Tel Antenna system is to remain powered up at all times. This
ensures that the antenna remains actively stabilized to prevent physical damage to the antenna pedestal and
reduce condensation and moisture in the radome to prevent corrosion. If, for some reason, the antenna must
be powered down during underway transits, it should be secured with nylon straps regardless of sea
conditions to prevent damage to the antenna system. Refer to the procedure below to secure the antenna
pedestal.
Equipment & Hardware needed:
•
Two (2) ½-13 x 2-inch Stainless Steel bolts.
• Two (2) Nylon straps with ratchet mechanism. Nylon straps must be rated to 300 lbs. Working load
capacity and 900 lbs. Max rated capacity.
Stowing procedure: