Removal and replacement of ADU modules
8-24
Chapter 8: Service & maintenance
98-137654-A
8.5.3.1 Removing the Cross Elevation DDM
To replace the Cross Elevation DDM, do as follows:
1. Open the service hatch by releasing the two latches with Torx
screws.
2. Switch off the power to the antenna on the service switch.
3. Rotate the antenna pedestal so that the arm with the Cross
Elevation DDM module faces the service hatch.
4. Disconnect the 3 connectors at the top of the Cross Elevation
DDM, then the 2 SUB-D connectors at the bottom of the DDM.
Tools needed:
• 4 x 150 mm Allen key
(located inside the
service door of the ADU)
• Flat head screw driver
Figure 8-20: Location of the Cross Elevation DDM
Figure 8-21: Replacing the DDM — remove connectors
DDM
SAILOR100TM.book Page 24 Tuesday, January 29, 2013 2:44 PM
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