Pa Module Cleaning Procedure - Harris ZX2500 Technical Manual

Section 5 Maintenance and Alignments
STEP 1
STEP 2
STEP 3
STEP 4
STEP 5
STEP 6
STEP 7
STEP 8
5.3.4

PA Module Cleaning Procedure

The PA module heatsinks are designed for high efficiency and therefore do not have
large openings for airflow. As a result, it is common for the modules to collect dirt over
time. The modules should be cleaned with compressed air on a schedule to be
determined on site, depending on the air system, filtering, humidity etc. (at least once a
year).
!
WARNING:
THE PA MODULES ARE DESIGNED TO HANDLE VERY HIGH TEMPERATURES AND
MAY BE EXTREMELY HOT. DO NOT TOUCH THE MODULE SIDES WITH BARE
HANDS AFTER THE TRANSMITTER HAS BEEN RUNNING, ESPECIALLY IN HIGH
AMBIENT TEMPERATURE ENVIRONMENTS.
Tools required:
Air compressor or
Vacuum cleaner with hose & nozzle attachment
Dry paintbrush
STEP 1
!
CAUTION:
DO NOT ATTEMPT TO THE CLEAN PA MODULES WITH COMPRESSED WHILE
THEY ARE STILL INSTALLED IN THE TRANSMITTER. THIS WILL FORCE DUST
DEEPER INTO THE TRANSMITTER.
5-12
WARNING: Disconnect primary power prior to servicing.
Open amplifier front door.
Open filter retainer door by loosening thumbscrews on reverse side of
front door.
Remove filter media from filter retainer frame.
Install replacement media in retainer frame.
Close filter retainer door and tighten thumbscrews.
Gently wash filter media in water until all dust and debris is removed.
Allow filter media to dry and save for use as replacement media next
time procedure is performed.
Procedure complete.
Remove PA module from transmitter.
888-2595-001
ZX Series
12/20/11