Technical Manual

Chapter 5 • Maintenance
D C U M a i n t e n a n c e a n d O p e r a t i o n M a n u a l 37
Replacing the Cellular Antenna
This procedure explains replacement of the cellular antenna.
1. Disconnect the antenna cables from the antenna package.
2. Grasp the cellular antenna on top of the DCU and turn it to the left to loosen.
3. Remove the old antenna and gasket.
4. Place a new gasket and cellular antenna onto the antenna connector.
5. Tighten antenna by turning it to the right.
6. Reconnect the antenna cables to the antenna package.
Replacing an RF Antenna
The antenna will be located atop a mast or pole. Exercise caution in accessing the
antenna. For additional information refer to the DCU Installation Instructions,
Y20977-TUM.
D
ANGER For the pole-mounted DCU, bear in mind that only service personnel trained to
work with high voltage may enter the supply space atop a power pole. It may
be necessary to defer this repair to another technician who has the equipment
and training required to perform a safe repair.
Use the following procedure to remove and replace the RF antenna.
1. Unlock and remove barrel lock.
2. Loosen the two thumb screws and open door.
3. Pull main power connector down to remove.
4. Remove bolts, lock washers, and nuts from the boom.
5. Replace the damaged antenna with a new antenna of the same kind.
6. Tighten the antenna to the torque cited in the DCU Installation Instructions,
Y20977-TUM.
7. Connect the coax to the antenna, tighten, and apply waterproofing.