ES45T-T-1
Back Structure
Step 1
55
Installation Procedures
Figure 66
The back structure assembly attached to the rear of the reflector. The back structure
provides stability for the reflector and maintains the parabolic accuracy of the dish.
Before assembling the back structure, verify that the appropriate parts are present. The
following steps provide the procedure for the back structure assembly.
CAUTION:
Reflector must remain on level supports positioned under center edge of
each reflector segment with diameter setting bands in place during assembly of back
structure. Once back structure is attached and all bolts tightened, reflector will be held in
its assembled shape. If back structure is added with reflector in distorted shape, back
structure will hold reflector in that shape. If standing or walking on reflector becomes
necessary, concentrate major portion of body weight towards center of reflector panel.
Refer to back structure Figure 66 for positioning and orientation details.
•
Apply stick wax (P/N 200852) to A-325 bolt threads before installation to reduce fric-
tion. (see page 12)
Note:
Do not attempt to tighten A-325 hardware prior to tensioning sequence in assem-
bly procedure.
ES45T-T Reflector Assembly
