TM 11-5841-287-30
decomposition are toxic and irritating. Since
other loose material from inside the equipment using a
TRICHLOROTRIFLUOROETHANE
shop vacuum cleaner or soft bristle brush
dissolves natural oils, prolonged contact
3-23. Repainting and Refinishing
with skin should be avoided. When
The extent of repainting and refinishing is limited to
necessary, use gloves which the solvent
filling-in scratched or chipped surfaces on the encoder
cannot penetrate. If the solvent is taken
and data lhnk control Prior to painting, the damaged area
internally,
consult
a
physician
should be thoroughly cleaned (para 3-22). Paint should
immediately
be applied evenly with an artists brush Where bare metal
Cleaning of the encoder and data link control is limited to
is exposed, a primer coat should be applied first Light
removal of surface stains and dust accumulations.
sanding may also be performed to smooth edges around
Remove surface stains using a lint-free cloth moistened
the damaged area, as necessary The materials required
with
TRICHLOROTRIFLUOROETHANE
cleaning
for repainting and refinishing are listed m paragraph 3-5.
compound.
After
cleaning
with
TRICOLOR
Refer to TB 43-0118 for detailed instructions on
TRIFLUOROETHANE, dry the area thoroughly with low
repainting and refinishing electronic equipment
pressure, filtered compressed air. Remove dust and
Section V. DIRECT SUPPORT TESTING PROCEDURES
3-24. General
WARNING
This section contains procedures for physically testing
Disconnect power from the equipment before
the encoder and data link control. Functional tests for
performing physical inspection procedures.
the encoder circuit cards are also presented. Refer to
Failure to comply could result in electrical shock
TM 11-5841-286-13 for inspection and testing of Radio
injury to personnel.
Set AN/ARC-164(V)16.
the encoder and data link control.
The physical
inspection procedures are to be accomplished before the
3-25.
Physical Inspection
encoder circuit card tests (para 3-26).
Table 3-3. Physical inspection Procedure
Item to be Inspected
Procedure
Standard
All exterior surfaces
Check for stains, fungus and corrosion
Surfaces shall be free of stains, fungus and
corrosion
Chassis
Check for dents, cracks and general
Chassis shall be free of structural damage
structural damage
Painted surfaces.
Check for scratches and cracked or peeling
All painted surfaces shall be free of
pint.
scratches which penetrate the pant, and
cracked or peeling pant
Screws, bolts and nuts
. Check for loose or missing screws, bolts
All screws, bolts and nuts shall be tight,
and nuts.
none shall be missing
Front panel switches.
Check for loose or missing knobs and
Switch knobs shall be tight and mechanical
normal switch action
action normal
Front panel indicators.
Check for burned-out or missing bulbs
Indicator bulbs shall be installed and m
working order
Fuses and fuseholders
Check for burned-out or missing fuses
Fuses shall be installed and m working
order
Electrical components
Check for signs of heat damage ( charing
Electrical components shall be free of heat
discoloration)
damage
Connectors
Check for bent, broken or missing pms
All connector pins shall be straight and
undamaged
Wiring
Check for breaks and damaged or frayed
All wiring shall be free of damage to
insulation
insulation and conductors
tested and their referenced paragraphs Refer to
3-26.
Testing Encoder Circuit Cards
a. General. Functional tests for the encoder
replacement procedures If a fault (nogo indication) is
circuit cards are presented in the following paragraphs.
indicated, remove the defective card from the test setup
These go/no-go tests provide positive indication of circuit
and return it to the depot for repair.
card performance. Table 3-4 lists the circuit cards to be
Change 1 3-31
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