NAVAIR 01-1A-509-3
01 March 2005
TM 1-1500-344-23-3
TO 1-1-689-3
indications in cockpit systems. Antenna coaxial
a. Primary Cleaning Method.
connectors have similar moisture problems. Coaxial
connectors shall be cleaned and treated in accordance
(1) Clean in accordance with cleaning Track
with paragraphs 6-3.11.1., 6-3.11.2., and 6-3.11.4.
CSR3 or CSR2B, as applicable. Refer to Table 2-3.
6-3.13. WIRE HARNESSES AND CABLES. When
(2) If grease is present, clean and degrease in
corrosion is found at the pin to wire connection on
accordance with cleaning track DB2A. Refer to
electrical connectors, plugs, and receptacles, the wire
harness/cable should be inspected for corrosion/
cracking of the wire insulation. Coaxial cable shielding
b. Secondary Cleaning Method.
is particularly susceptible to corrosion. Wire harnesses
and cables shall be cleaned and treated as follows:
(1) Place the filter in a deep sink and flush
thoroughly with fresh water.
a. If corrosion is apparent at the back of a connector,
it may be necessary to remove an inch or two of the
(2) Scrub rigid or metal filters with Cleaning
wire harness cable cover to inspect for corrosion.
Brush, A-A-2074 (Volume IV or V, Chapter 3).
Alcohol, Isopropyl
6
Compound, Aircraft Cleaning
4
TT-I-735
MIL-PRF-85570
b. Apply Isopropyl Alcohol, TT-I-735 (Volume IV or
(3) If oil or grease is present in filter, clean the
V, Chapter 2), with Brush Typewriter, A-A-3077 Style
filter with a solution of nine parts fresh water to one part
T (Volume IV or V, Chapter 3), or Toothbrush
C l e a n i n g Compound, MIL-PRF-85570 Type I I
(Volume IV or V, Chapter 3). Scrub affected area until
(Volume IV or V, Chapter 2). Scrub rigid or metal filters
contaminants are loosened. Re-apply Isopropyl
with Cleaning Brush, A-A-2074 (Volume IV or V,
Alcohol, TT-I-735, to flush area.
Chapter 3). Rinse thoroughly with fresh water.
c. Shake excess solvent from wire harness and
CAUTION
wipe with Cleaning Cloth, CCC-C-46 Class 7
(Volume IV or V, Chapter 2).
Compressed air used for drying can create
airborne particles that may enter the eyes.
d. Allow to air dry.
Pressure shall not exceed 10 psi. Eye
protection is required.
e. Treat in accordance with paragraphs 6-3.11.1.,
6-3.11.2., and 6-3.11.4.
(4) Blow off excess water with dry air or dry
nitrogen at not more than 10 psi pressure.
f. Where applicable, repair wire harness and cable
covering.
(5) Allow to air dry.
6-3.14. P R I N T E D CIRCUIT BOARDS. Edge
(6) Do not preserve filters.
connectors (and mating plugs) used in miniature and
microminiature printed circuit boards (PCBs) are
6-3.16. SENSITIVE INTERNAL METAL SURFACES.
cleaned and preserved in accordance with paragraph
Metal surfaces such as resonant cavities, tube covers,
and other delicate metal components, shall be
inspected for signs of corrosion. Remove corrosion
6-3.15. FILTERS. The cleaning of filters is essential to
and preserve as follows:
maintaining the cleanliness and, thus, reliable operation
of avionic/test equipment. The frequency of cleaning
a. Remove dirt and contaminants with Cleaning
shall be as appropriate based on local conditions.
and Polishing Pad, Non-Abrasive (Volume IV or V,
Filters shall be cleaned as follows:
Chapter 2). Scrub affected area until all contaminants
are dislodged.
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