User's Manual

1027145–0001 Revision E Maintenance 10–7Hub installation
3. Rotate the antenna (clockwise or counterclockwise) until
the antenna bracket reliefs (curved indentations) are aligned
with the four nuts on the mast interface, as shown in figure
10-4.
Figure 10-4 Removing the antenna
hb117
Relief
Relief
Reliefs not aligned
with nuts
Nut
Reliefs aligned with nuts
(Antenna in position
to be removed)
Rotate antenna and antenna bracket until
reliefs are aligned with the 4 antenna
bracket locking nuts, as show at right.
Antenna
mount
Antenna
bracket
4. Move the antenna away from the mast interface.
5. Cover the antenna waveguide (center hole) with a plastic
plug or tape to protect against contamination.
Installing the replacement antenna
6. Attach the replacement antenna to the mount, as explained
in section 4.6 (page 4–15).
7. Align the replacement antenna by adjusting the azimuth and
elevation as detailed in sections 4.7 and 4.8 (beginning on
page 4–18).
8. Attach the transceiver to the antenna, as explained in
section 4.10 (page 4–23).
9. Connect the IFL cable to the IFL connector on the
transceiver.
10. Ground the ODU, as explained in section 4.11 (page 4–25).
11. Apply power to the IDU chassis power supply (section 6.3,
page 6–11).
12. Use the CCM LCD to check the ODU status. (For details,
see section 7.3).
13. Notify the EMS operator that the HT is ready to resume
service.