Hy-Gain LP-1009A, Instruction Manual

Page: 9 / 29

Attach the boom and bracket assembly to these
two brackets using the four (4) 5/16"-18 x 5"
bolts, lockwashers and nuts (77, 82, 83). If you
have problems aligning all of the holes in the
brackets, you may wish to carefully run a 5/16"
drill bit through these holes. Do not enlarge
these holes beyond 5/16" or you may weaken the
brackets. This will prevent alignment problems
that might occur on the top of your tower!
Tighten these four bolts just enough to hold the
weight of the antenna.
Slip the remaining boom sections over the
swaged ends of the assembled boom and secure
as shown in Figure 2.
Assembly of the Element-to-Boom
Brackets on the Boom
There are two sizes of element-to-boom brackets
supplied with the LP- 1009 antenna. The largest
has a 1 1/2" I.D., and is used on the 8 longest
elements and the boom support tubes. The
remaining brackets have a 11/4" I.D., and are
used on the 4 front elements.
The largest brackets are stamped with the
number 14, while the smaller brackets are
stamped with the number 13.
Assemble the brackets as shown in Figure 4 and
locate them on the boom assembly as shown in
Figure 3. It is easier to assemble the brackets on
the boom at the correct location, rather than try
to slide them on the boom. If you are going to
leave this assembly unattended for more than 15
minutes, we suggest that you tighten the eight
(8) bolts on each bracket, so that they do not
vibrate off. Do not tighten the anchor bolt on the
bottom of the brackets until the elements are
installed and aligned. Install the boom support
tubes (17) and brackets (2) also at this time! The
boom support brackets will have both top and
bottom anchor bolts.
NOTE: The longest element (#12) uses top AND
bottom anchor bolts! All other elements use only
bottom anchor bolts!