4
54-0166 Addendum to Rev. B
5. Remove the three #6-32 x
3
⁄
8
" retaining screws from
the limit switch cover and set aside (see
Figure 4-7). Lift the cover to access the limit switch
underneath.
6. Remove the four #8-32 x
1
⁄
2
" screws securing the
limit switch to the cover and set aside.
7. Replace the azimuth limit switch. Attach the new
switch to the cover using the #8 screws, flat
washers, and cable clamp.
8. Route the new limit switch wires through the
cover and cable clamp to the CPU’s Molex
connector. After noting the position of the old
black and white wires, remove the old wires from
the Molex connector. Attach the new wires in their
place.
9. Before re-installing the azimuth limit switch to the
antenna assembly, orient the switch’s plastic cam
as shown in Figure 4-8. With the cam in the proper
position, reinstall the switch to the antenna
assembly using the three #6 retaining screws and
flat washers.
Ensure the cam finger engages the
stop pin in the mounting cavity.
10. Apply hot melt or RTV at the limit switch cover’s
wire access hole to protect the wires from chafing.
Plastic Cam
Black and White Wires to
CPU’s Molex Connector
Figure 4-8
Azimuth Limit Switch Orientation
