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The nuts for the long M6 screws are already included as part of
mounting bracket A. Do not tighten the screws completely until
you have mounted the RAU on the pole.
3. Fit the U bolt through the oval holes in mounting bracket A, then
insert the U bolt through the RAU until the threaded ends
appear at the bottom front of the RAU. Place the large flat
washers, the large split washers, then the hex nuts on the ends
of the U bolt with stack-up shown in Figure 13 on page 18. (When
the access cover is closed, the hex nuts on the U bolt will be
hidden.)
4. Slip the RAU assembly over the top of the pole. Tighten the long
M6 x 60 mm screws to 300 ± 30 N-cm (26.6 ± 2.7 in lb). Tighten
the U bolt hex nuts to 1536.5 ± 248.6 N-cm (136 ± 22 in lb).
Ensure that now the RAU cannot move while on the pole.
Note
Ensure that the pole, the RAU, and the antenna are vertical
and that the antenna has a clear view of the sky and a
360 degree view of the horizon. Ensure that the entire length
of the antenna portion of the RAU clears the top of the pole.
Ensure that there is no possibility that the RAU can move or
slip while mounted on the pole.
5. To close the access cover, hook the cover in the recess at the top
of the RAU front housing. Draw the access cover down over the
access opening and tighten the four thumb screws on the cover to
220 ± 30 N-cm (19.5 ± 2.7 in lb).
Note
For protection against weather, the grommet must be installed
correctly and the screws that close the access cover must be
tight.
6. If desired, use a padlock to secure the cover and prevent theft of
the SM card and RAU.
W arning
POWER. Do not apply 12 volt power until all electrical
connections are made. Do not allow the +12 volt line to contact
the ground wire or any other metallic object. Should a short
occur, there is a risk of injury, fire, or damage to power supply,
and explosive venting of any backup battery.
Mount the RAU on a pole or wall
19
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