BFGoodrich PS-823 - 4. Inspection After Repair and During Assembly

BFGoodrich
Avionics Systems, Inc.
Component
Maintenance Manual
P/N 501-1075-()
4)
Inspect
all
wiring
for
being excessively
tight or loose, chafing, fraying,
burned
insulation,
and breakage.
Wiring insulated with Teflon
should
be checked closely
for
insulation
cold
flowing and
leaving the conductors bare. This
phenomenon would be most evident
at
wire
bends and places
where
wire
bundles
are
secured or
tied. Being
able to see actual wire
through the
insulation
does
not
necessarily
mean
the wire
needs
replacement. An
insulation
breakdown
test
will determine
if
replacement
is
warranted.
5)
Inspect
all
soldered
connections,
even
those not
unsoldered
during disassembly,
for broken
or
pitted solder,
cold joints, and
solder
quality.
Deficiencies
found
during
inspection should
be
corrected when repairing
a
defective
unit,
or
performed
as a
preventive
maintenance measure to
preclude
future
problems.
Repair
defects
in
accordance
with the
Repair section
of this manual.
4.
Inspection After Repair
and
During Assembly
A.
Perform
re-assembly
according to
Reassembly
section.
While
in progress of unit
re-assembly
check:
1)
Sufficient
service
loop exists
between
interconnected subassemblies.
2)
All screws
in terminal
posts
and
CCAs are tight (not
stripped).
3)
Screws
attaching subassemblies to
chassis aæ tight (not stripped).
4)
External
hardware and nuts
securing
front
panel
to chassis are
tight.
5)
Appropriate
modifications have been incorporated and mod numbers
marked off
accordingly on
modification plate.
6)
Connector
Jl is properly covered for storage or handling.
After assembly,
perform unit performance test according to Testing and
Fault
Isolation
section.
5.
PS-823
Storage
If the unit
is
to be stored, cover the Jl connector pins
with dust
cap P/N
563-1725-01
and place the
unit into the
original
shipping container (or
equivalent) for storage. See
Test
and
Fault Isolation
section,
PS-823
Storage Paragraph 6,
for charging requirements
of
units in
storage.
msmljtp202Checkdiskl59
24-20-03
Page
502
Revision A
June
30,
1999