Removal and replacement of ADU modules
8-28 Chapter 8: Service & maintenance 98-137654-A
8.5.4 Replacing the Polarisation Motor Module
(PMM)
8.5.4.1 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.
3. Rotate the antenna pedestal so that the PMM faces the service
hatch.
4. Rotate the Antenna Dish to 0 degree position.
5. Press in and turn the elevation locking pin (available in some
antennas) to locked position.
6. Disconnect the 2 connectors from the PMM (D-sub and cable to
mark M).
Tools needed:
• 4 x 150 mm Allen key
(located inside the
service door of the ADU)
• Flat head screw driver
Figure 8-26: Location of the Polarisation Motor Module (PMM)
SAILOR100TM.book Page 28 Tuesday, January 29, 2013 2:44 PM
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