General Dynamics 500-0646, Руководство по эксплуатации

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500-0646A 7
2.2.2 Azimuth Jack Assembly
Step 1. Install the azimuth trunnion to the pedestal. Install one retaining ring on the pin and
slide one flat washer onto the pin. Place the thrust washer above the bottom azimuth
trunnion attachment point and then, while holding the azimuth trunnion in place, insert
the pin from the bottom. Secure the pin by sliding a flat washer onto it and attaching
the second retaining ring. The azimuth trunnion should easily swing right and left at
this point.
Figure 3. Installing the Azimuth Trunnion
Step 2. Attach the azimuth jack to the azimuth trunnion. Slide the azimuth jack tube through
the hole on the azimuth trunnion and secure the jack to the trunnion using 5/8” x 2”
bolts, 5/8” nuts and 5/8” flat washers (four places).
Step 3. Attach the end of the azimuth jack screw to the appropriate lug on the V-frame (see
Figure 4). The appropriate lug is determined depending on the antenna’s azimuth
travel requirements. Use a flat washer and a retaining ring on each end of the pin.
Note: It may be necessary to extend the jack screw to reach the V-frame lug.
This can be accomplished by driving the jack in azimuth using an electric
drill and a 1/2” socket.