Training, Installation & Service Manual - Livewire Connections Ltd

9.5.7.7 Removing the X Elevation Motor and Encoder
To remove the Cross Elevation Motor and Encoder, do as follows:
1. Open the service hatch by releasing the two latches.
2. Switch off the power to the antenna on the service switch.
3. Rotate the antenna dish to top position.
4. Rotate the antenna pedestal so that the arm with the GPS module
faces the service hatch.
5. Press in and turn the elevation locking pin (only available from
serial number TBD) to locked position.
6. Disconnect the 3 cables at the top of the Cross Elevation DDM.
Removal and replacement of ADU modules
Tools needed:
• 4 x 150 mm Allen key
(located inside the
service door of the ADU)
• Acoustic frequency meter
9999
Figure 9-58: Replacement of X-Elevation Motor & Encoder 1
7. Loosen the Cross-Elevation Drive belt tension/adjustment screw.
Service & maintenance
98-133966-E2 Chapter 9: Service & maintenance 9-49