Specifications

Chapter 2 - Installation
42S315F 2-9
NOTE
Cleanliness of the precision mating parts that make up the
reflector assembly is essential to proper fit and reflector
surface accuracy. For this reason, only remove the reflector
parts from their crates or pallets as required.
• Examine 48 reflector panels and 24 trusses in their crates.
• Identify eight spar panels for the sub-reflector spar
mounting tab attached to the spar trusses.
• Identify four spar trusses by the spar support clevis
welded to the tip end of the truss.
• Examine the hub and note the orientation of the spar
trusses (see Drawing 517577)
2.4.6 Assembly of Reflector, Spars and Subreflector
The following procedure describes the complete assembly of the reflector
which includes the reflector hub, trusses, intercostals, spars, subreflector, and
panels.
The basic reflector assembly sequence is:
• Install trusses and intercostals
• Install spars and subreflector
• Align trusses
• Install reflector panels to trusses
• Align Panels
• Tighten fasteners
Assemble the reflector on the ground by the following steps.
CAUTION
If it is necessary to walk inside the reflector during assembly,
be sure to walk on the portion of the reflector closest to the
hub. Avoid putting weight on unsupported parts of the
reflector panels. Wear clean soft sole shoes or socks only.
Extra care should be taken to protect the painted panel
surface.