Subreflector Struts, Embedded Pipe Ground Mount - Andrew 3.7-Meter Earth Station Antenna Installation And Operation Manual

Subreflector
Struts
Embedded Pipe
Ground Mount
Assembly
Step 1
Step 2
Step 3
Step 4
Loosely preassemble the 300056 Subreflector Struts using supplied 222888 strut sup-
ports and the 9963-127 3/8 inch by 2 1/4 inch bolts, 9974-63 lockwashers, and 9999-60
nuts as shown in Figure 3-54b, View A.
Note: At this time it is recommended (but not necessary) to install the Subreflector, for
K- & Ku-Band, see Kit #301921; for C-Band, see Kit #301939.
Attach the 49187angle clips around the reflector perimeter at the indicated positions
using 100521-51 3/8 x 1 inch bolts, 9974-63 lockwashers and 9999-60 nuts. See View
B in Figure 3-54b.
Figure 3-54b: Subreflector Strut Attachment
Raise and attach the pre-assembled Subreflector strut assemblies between the corre-
sponding 49187 angle clips using a tag line. Attach struts between angle clips using
9963-127 3/8 x 2 1/4 inch bolts, 9974-63 lockwashers and 9999-60 nuts.
Tighten strut and all hardware at this time.
3/8 x 1"
Bolt, Lockwasher
and Nut
49187
Angle Clip
3/8 x 2-1/4"
Bolt, Lockwasher
and Nut
67
300056
Subreflector Strut
222888
Strut Supports
3/8 x 2-1/4"
Bolt, Lockwasher
and Nut
Installation Procedures