ViaSat 8116 Series, Инструкция по установке и эксплуатации

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LOWER MOUNT INSTALLATION PROCEDURES
The platform plate is assembled on the ground and then installed
on the top of the mount after the columns are erected during the
frame installation procedure. Assemble the azimuth bearing ring
assembly in accordance with the following procedure.
Azimuth Bearing Ring
Assembly
WARNING
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The following assemblies weigh from 870 lbs
(395 kg) to 9300 lbs (4218 kg). Use extreme care
when hoisting these assemblies into position.
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CAUTION
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Mount damage can occur if the platform plates
are not properly aligned. Ensure proper
alignment is maintained as described in the
following procedure.
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1. Block up 2 piece tapped plate (item 3 in Figure 2-2) with ends 0.125
inches apart forming a hexagon (access underneath for installation of
top skin mounting angle is required).
2. Using hoist set 2 piece mounting plate (item 2 in Figure 2-2) in place
rotating ends 60° from ends of item 3.
3. Using hoist set 2 piece top plate (item 1 in Figure 2-2) in place rotating
ends 60° from ends of item 2 and item 3.
4. Secure all three layers together through bolt holes indicated in Figure 2-
2 using screws and washers (items 100 and 101). Note that only 6 bolts
are used in one segment of the hexagon. This is where the azimuth drive
pivot frame is installed at a later time.
5. Torque bolts to 600 ft-lbs (813 Nm).
6. Attach six top skin mount angles (item 8 in Figure 2-3) to underside of
azimuth bearing ring assembly using screw, two flat washers, and nut
(items 102, 103 and 104 in Figure 2-3). Hand tighten nuts.
NOTE
The azimuth bearing ring assembly is now ready to be set on
top of the columns in accordance with the next procedure.
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2-12
SERIES 8116/8118 16-/18-METER EARTH STATION ANTENNA
42S183D