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

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Installation in 168” Radome Sea Tel 9711-56 IMA
5-4
EAR Controlled - ECCN EAR99
7. Apply a good 3/8 inch
bead of silicon sealant
to seal the centerline of
the two adjoined
halves of the base pan
to keep wind, water
and dirt from getting
into the radome from
underneath.
8. Install the Base Hatch
and clamp the latches
from the under-side.
5.3.2. Radome General Subassembly Guidance
You must sub-assemble the sections of the radome on a clean, flat location that is free of rocks &
debris (ie concrete) to assure good horizontal alignment of each of the three layers of panels.
The top subassembly portion of the radome, including cap, MUST be completely assembled,
assuring good horizontal alignment of the bottom of the panels and caulked before installing it on
the lower half of the radome. If not, reaching all of the flanges & cap to caulk after it is on the lower
section of the radome will require a ladder inside the radome and staging and/or ladder on the
outside – this method GREATLY increases the likelihood of damaging the equipment inside, and
the finish outside, of the radome.
The riser panels, and the lower half of the radome can be assembled on the baseframe. You may
choose to loosely assemble all of these panels, then spread & caulk the vertical seams and tighten
that hardware. Then install the pedestal assembly, install the reflector assembly, install the top sub
assembly of the radome, spread, caulk and tighten the horizontal seams (equator seam, lower-to-
riser and riser to base.
When assembling the panels, using several pin punches to help align the holes may help getting all of
the hardware in all of the holes.