Section-5 Maintenance
October 28, 2013
5
‐
8
Copyright
©2013,
Harris
Broadcast
WARNING:
Disconnect
primary
power
prior
to
servicing.
888
‐
2720
‐
001
5.3.1
Air Filter Replacement Procedure
The
front
door
air
filter
requires
periodic
replacement.
How
often
depends
on
the
air
quality
at
the
site.
When
the
filter
is
filled
with
dust/dirt,
it
will
reduce
the
air
flow
to
the
point
where
the
modules
will
overheat,
then
shut
down.
All
FAX
transmitters
are
supplied
with
a
spare
piece
of
filter
media,
so
that
a
new
piece
may
be
rotated
into
service
while
the
original
piece
is
being
washed
and
allowed
to
dry.
Warning
DO NOT UNDER ANY CIRCUMSTANCE INSTALL A WET OR MOIST FILTER IN THE
TRANSMITTER. CONTACT HARRIS BROADCAST SERVICE TO PURCHASE ADDITIONAL
FILTER MEDIA, AS NECESSARY.
STEP 1
Open
front
door
by
loosening
thumbscrews
on
reverse
side
of
front
door.
STEP 2
On
the
inside
of
the
door,
remove
the
metal
frame
holding
the
filter
in
Remove
filter
media
from
filter
retainer
frame.
With
a
clean
cloth
wipe
excess
dirt
from
the
door
frame
where
media
was.
STEP 3
Install
replacement
media
in
retainer
frame
and
screw
the
metal
frame
back
on.
STEP 4
Close
the
front
door
and
tighten
thumbscrews.
STEP 5
Gently
wash
the
dirty
filter
media
in
lukewarm
water
with
a
mild
soap
detergent
until
all
dust
and
debris
is
removed.
Rinse
thoroughly
to
remove
all
soap.
STEP 6
Allow
filter
media
to
dry
and
save
for
use
as
replacement
media
next
time
procedure
is
performed.
5.3.2
PA Module Cleaning Procedure
The
PA
and
IPA
module
heatsinks
do
not
have
large
openings
for
airflow.
As
a
result,
it
is
common
for
the
heatsinks
to
collect
dirt
over
time
especially
if
the
air
filters
have
not
been
maintained
properly.
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
is
highly
recommended.
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 TEMPERA-
TURE ENVIRONMENTS.
Weekly
Review
readings
and
compare
with
baseline
readings
and/or
factory
test
data
report
to
detect
any
deviations.
Monthly
to
semi
‐
annually
Inspect
/
replace
air
internal
filter(s)
(see
procedure)
Inspect
/
clean
PA
module
heatsink
fins
(see
procedure)
Annually
Periodic
inspection
and
cleaning
(see
procedure)
Verify
power
meter
calibrations
(see
procedure)
Verify
reserve
exciter
and
IPA
switchover
functionality
Verify
external
interlocks
(station
load
temp
sensor,
patch
panel
position
switch,
coax
switch
interlock,
etc.)
Table 5-14 Suggested Maintenance Routine
Summary of Contents for Flexiva FAX 5KW
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