User's Manual

AirHarmony-4000 (External Cavity Filters) Installation Guide
UGD-D01019 Airspan Commercial and Internal Use 47
6 Additional Installations
6.1 Changing or Replacing the External Filters Set
6.1.1 Removal of Existing External Filters Set
Removal and replacement of the external filters can be performed while the AirHarmony unit is still
mounted without having to dismantle the unit.
The following steps define removal and replacement installation procedure for the AirHarmony-4000
cavity filters when required.
To replace the cavity filter, follow these steps:
1. Loosen the 4 screws on the the filter cover.
2. Pull outward on the filter cover to pull it free and swing the filter cover down away from
the cavity filters.
3. Loosen the RF connector on the cavity filter to separate the cavity filter connector from
the AirHarmony-4000’s RF connector.
4. Loosen the four (4) Pan-head screws holding the cavity filters in place on the filter
bridge.
5. Repeat steps 3 & 4 for the second filter.
6. Loosen the four (4) screws which hold the cavity filters and filter bridge to the sunshield.
7. Once the RF connectors are free and not connected, swing the filter cover back up and
hand-tighten so as to facilitate lifting of the cavity filters, the filter bridge and the filter
cover for replacement.