Removal and replacement of ADU modules
8-26 Chapter 8: Service & maintenance 99-145912-A
8.6.3 To replace the VSAT Interface Module
(VIM2)
To replace the VIM2, do as follows:
1. Open the service hatch.
2. Switch off the power to the antenna on the service switch.
3. Rotate the antenna pedestal so that the arm of the GPS module
faces the service hatch.
4. Rotate the antenna dish to top position.
5. Press in and turn the elevation locking pin to locked position.
6. Disconnect the 2 SMA connectors at the top of the VIM2.
Tools needed:
• 4 x 150 mm Allen key
(located inside the service
door of the ADU)
• 8 mm open-end spanner
• 11 mm open-end spanner
• 18 mm open-end spanner
•Flat head screw drive
Figure 8-22: Elevation locking pin
Figure 8-23: Replacement of VIM