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Training, Installation & Service Manual - Livewire Connections Ltd

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Removal and replacement of ADU modules<br />

2. Tighten the 4x4 mm Allen screws from the motor assembly.<br />

Figure 9-40: Elevation motor and encoder, tighten the screws for the motor<br />

assembly<br />

3. Adjust the belt-tension screw.<br />

Figure 9-41: Elevation motor and encoder, adjust belt tension<br />

The tension of the belt is 60-80 Hz on average (use an Optibel<br />

frequency measuring device or alike), with the antenna disk in<br />

two positions — dish elevation position 1 (125 °) and position 2 (-<br />

25 °).<br />

9-38 Chapter 9: <strong>Service</strong> & maintenance 98-133966-E2

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