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

Page: 44 / 234

Installation in 144” Radome Sea Tel 9711-56 IMA
4-20
EAR Controlled - ECCN EAR99
Only 2 people are required to sub-assemble the top of
the radome.
1. On a flat surface, adjoin two panels and
loosely install a bolt/nut high, mid and low in
the adjoined flange.
2. Continue adjoining additional panels loosely
installing a bolt/nut high, mid and low on
each flange until all six panels have been
loosely assembled to form the bottom half of
the radome.
3. The person inside now loosely installs the
rest of the hardware in all of the flanges. Do
NOT tighten the bolts at this time.
NOTE: The person who is working inside installing
hardware, applying Loctite, tightening hardware and
cleaning the inner flanges will remain inside until the
cap and lifting brackets are installed.
4. Assure good horizontal alignment of the
panels. Good alignment of the bottom edge
of the panels is important for good seal
between the lower and upper panels.
5. To provide a clean caulked seam all around
the panels: apply painters masking tape to
the outside perimeter of each of the panels
about ¼“ from the top, bottom, left and right
edges at each flange joint. The tape will be
removed just before the radome caulking has
had time to set.
NOTE: It is extremely important to assure that the
flanges are properly aligned before the bolts are
tightened and kept in alignment as the hardware is
aligned. This is necessary for the inside clearance and
the outside aesthetic appearance of the radome.
Please note this picture shown good alignment as
observed from inside the radome and below a flange
with bad alignment.
Good flange alignment
Bad flange alignment