Removal and replacement of ADU modules
98-133966-G1
Chapter 8: Service & maintenance
8-35
8888
Service & maintenance
5. Disconnect the 3 connectors at the right of the Azimuth DDM, then
the 2 SUB-D connectors at the left of the Azimuth DDM.
6. Remove the 4x4 mm Allen screws (thread size M5) (visible when the
connectors are removed) and remove the Azimuth DDM.
8.5.5.6
Inserting a new Azimuth DDM
To insert a new Azimuth DDM follow the instructions above in reverse
order.
8.5.6
Replacing the Polarisation Motor
Module (PMM)
8.5.6.1
Removing the Polarisation Motor Module
(PMM)
To remove the Polarisation Motor Module, 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.
Figure 8-39: Azimuth DDM, connectors
Tools needed:
• 4 x 150 mm Allen key
(located inside the service
door of the ADU)
• Flat head screw driver
SAILOR900TM.book Page 35 Monday, September 16, 2013 11:01 AM
Summary of Contents for Sailor 900 VSAT
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