System information

9497B-20 Ku-Band TVRO Installation
4-3
NOTE: Unless otherwise indicated, all nuts and bolts should be assembled
with Loctite 271 or its equivalent.
WARNING: Assure that all nut & bolt assemblies are tightened according the tightening torque
values listed below:
Bolt Size Inch Pounds
1/4-20 75
5/l6-18 132
3/8-16 236
1/2-13 517
1. Select a secure assembly site that provides enough area to work with the large radome panels. Place
the radome base pan on temporary support blocks at least 22 inches high.
2. Assemble the radome base frames eight legs and eight braces using the hardware provided. Loosely
assemble all legs and braces aligning all matching marks before tightening any of the bolts. Insure
that a split washer is used under each nut.
3. Refer to the radome assembly drawing. Observe the painted numbers on the radome panels that
clearly identify their positions respective to each other and the base pan assembly.
4. Loosely assemble the 6 lower side panels, using the hardware provided, to form the bottom half of
the radome. Do NOT tighten the bolts at this time. Open each seam wide enough to install a good
bead of silicone caulk, then firmly tighten all the bolts in that flange. Repeat until all flanges are
sealed.
5. Loosely assemble the 6 upper side panels, using the hardware provided, to form the upper half of
the radome. Do NOT tighten the bolts at this time. Open each seam wide enough to install a good
bead of silicone caulk, then firmly tighten all the bolts in that flange. Repeat until all flanges are
sealed.
6. Apply a good bead of silicone caulk all the way around the top cap. Install the cap into the upper
radome panel assembly using the hardware provided and tighten all the bolts.
7. Set the lower half of the radome assembly on the base pan aligning the painted numbers on the
radome panels. Loosely attach the lower side panel assembly to the base frame using the hardware
provided. Do NOT tighten the bolts at this time. Lift the lower side panel assembly wide enough to
install a good bead of silicone caulk between it and the base pan, then firmly tighten all the bolts.
8. Fasten the antenna pedestal assembly, complete with base stand, to the base pan using the 1/2-13 x
1 1/2 (or the 3/8-16 x 1 1/2) inch bolts inserted from the bottom up and install a flat washer, a lock
washer and a nut in each mounting hole. Apply Loctite 271 and tighten securely.
9. Attach the antenna assembly (reflector, struts and feed) to the stabilized pedestal, by using the
reflector mounting hardware provided. Position the antenna over the four antenna support struts
(the antenna and the dish mounting clips are numbered or color coded make sure they match).
Insert the four mounting bolts, washers and nuts, apply Loctite 271 and tighten.
10. Attach the 15 pin connector on the antenna reflector harness to the shielded Polang Aux Relay box.
Connect the IF receive coax cables from the feed to the pedestal Modem or coax relay/switch panel
according to the block diagram.
11. Using a four point web lifting sling and lifting clips, lift the upper half of the radome up over the
antenna pedestal and set it onto the lower side panels aligning the painted numbers on the radome
panels. Loosely attach the upper and lower halves of the radome using the hardware provided. Do
NOT tighten the bolts at this time. Insert wedges between the upper side panel assembly and the
lower side panel assembly to hold open a space wide enough to install a good bead of silicone caulk
between it and the lower side panels, then remove the wedges and firmly tighten all the bolts.
12. Gently restrain the antenna prior to lifting the ADE onto the ship to restrict movement inside the
radome during the lift.