01 March 2005
NAVAIR 01-1A-509-3
TM 1-1500-344-23-3
TO 1-1-689-3
6-3.2.10. I n t e r n a l Cleaning of Microwave Test
Alcohol, TT-I-735 (Volume IV or V, Chapter 2). Do not
Equipment. Microwave equipment contains many
disturb the center conductor with a cleaning tool or
potential water/solvent traps. In addition, microwave
brush.
equipment makes use of many acrylic vanes and
l e n s e s in waveguides/cavities, and variable
(4) Wipe excess solvent with Cleaning Cloth,
attenuators. Generally, these components can be
CCC-C-46 Class 7.
sealed or removed from the chassis prior to cleaning
and drying. The internal cleaning and preservation of
(5) Allow to air dry.
microwave test equipment shall be as follows:
a. Clean external surface of waveguides in
accordance with paragraph 6-3.3.
Compound, Corrosion Preventive
3
Water-Displacing
b. Clean internal surface of waveguides in
MIL-C-81309
accordance with paragraph 6-3.3.
CAUTION
Do not apply preservation materials to internal
s u r f a c e s / a r e a s of waveguides or APC
Alcohol, Isopropyl
6
connectors.
TT-I-735
(6) Assemble connector sections and preserve
c. If the waveguide is not going to be reinstalled
the external areas with a thin coating of Water
immediately, seal ends of waveguide sections with
D i s p l a c i n g Corrosion Preventive Compound,
appropriate protective caps identified in the applicable
MIL-C-81309 Type II (Volume IV or V, Chapter 2).
service directives or with Pressure Sensitive Tape,
S A E - A M S - T - 2 2 0 8 5 Type I I (Volume I V or V,
6-3.2.11. Special Cleaning Procedures. The following
Chapter 2). It is important that all tape residues are
removed from all connecting surfaces prior to
microwave circuit components shall be cleaned and
reassembly of the waveguide. Wipe residue with
preserved as follows:
Cleaning Cloth, CCC-C-46 Class 7 (Volume IV or V,
Chapter 2), dampened with Degreasing Solvent,
a. Preserve electrical bonding and grounding straps
MIL-PRF-680 Type III (Volume IV or V, Chapter 2).
in accordance with paragraph 6-4.
Wipe with a Cleaning Cloth, CCC-C-46 Class 7
(Volume IV or V, Chapter 2) dampened with Isopropyl
b. P r e s e r v e relays and circuit breakers in
Alcohol, TT-I-735 (Volume IV or V, Chapter 2).
accordance with paragraph 6-3.6.
d. Clean connectors as follows:
c. Clean rotary switches, trim potentiometers, and
sliding cam switches in accordance with paragraph 6-3.7.
(1) Disconnect the connector sections.
(2) Remove corrosion from external surfaces
with Abrasive Mat, A-A-58054 Type I Grade A
Cleaning-Lubricating Compound
21
(Volume IV or V, Chapter 2). Wipe residue with
MIL-PRF-29608
Cleaning Cloth, CCC-C-46 Class 7 (Volume IV or V,
(1) Clean switch using Cleaning-Lubricating
C o m p o u n d , MIL-PRF-29608 (Volume I V or V,
Alcohol, Isopropyl
6
(2) Wipe sliding contacts, cams, and contact
TT-I-735
points with Disposable Applicator or Pipe Cleaner
(Volume IV or V, Chapter 3), as applicable, to remove
(3) Clean connector sections by spraying
residue.
internal/external connector areas with Isopropyl
6-22
