Removal and replacement of ADU modules
98-133966-G1
Chapter 8: Service & maintenance
8-33
8888
Service & maintenance
8.5.5.2
Inserting a new Cross Elevation DDM
To insert a new DDM follow the instructions above in reverse order.
8.5.5.3
Removing the Elevation DDM
To replace the 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 elevation DDM faces the
service hatch.
4. Disconnect the 3 connectors at the front of the Elevation DDM, then
the 2 SUB-D connectors at the rear of the Elevation DDM.
5. Remove the 4x4 mm Allen screws (thread size M5) (visible when the
connectors are removed) and remove the Elevation DDM.
Tools needed:
• 4 x 150 mm Allen key
(located inside the service
door of the ADU)
• Flat head screw driver
Figure 8-36: Location of the Elevation DDM
Figure 8-37: Elevation DDM, connectors
SAILOR900TM.book Page 33 Monday, September 16, 2013 11:01 AM
Summary of Contents for Sailor 900 VSAT
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