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

Page: 59 / 234

Sea Tel 9711-56 IMA Installation in 168” Radome
5-5
EAR Controlled - ECCN EAR99
5.3.3. Sub-assemble the 168” Radome Assembly
Refer to the Radome Assembly drawing for your system and the procedure below. It is best to have
at least TWO people sub-assembling the radome, one working from the inside and the other
outside. 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 the panels.
NOTE: Unless otherwise indicated, all nuts and bolts should be assembled with
Loctite 242 or its equivalent.
1. Loosely assemble the 8 riser
panels using the hardware
provided. Do NOT tighten the
bolts at this time. You may
want to set this sub-assembly
on the base pan to provide good
horizontal alignment of the
panels. Good alignment of the
bottom edge of the panels is
important for good seal on the
base pan.
2. 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. Messy, smeared,
caulking will make the outside
of the radome look bad.
3. Open each vertical seam wide
enough to install a good bead of
silicone caulk, apply loctite to
and then firmly tighten all of the
bolts in that seam (Smaller
beads of caulking can be applied
from outside and inside if you
prefer).
4. Clean excess caulking off of the
flange area (inside and out) as
shown in step 17 below.