a. Patch and Test Facility (Quarterly).
Item to be inspected
Check to see that all publications are complete,
Verify that all bolts, nuts, and washers are correctly
properly tightened. Check for cracked, bent, or broken
Check all spare parts for general condition and method of
There should be no evidence of overstock, and all
Remove power and dust inside.
Item to be inspected
See that the equipment is complete.
Check all surfaces for evidence of fungus. Remove rust
Verify that plugs, sockets, and jacks are clean, intact,
Intact, and not loose fitting.
Inspect clamps and seating of pluckout items. Check for
Check for wrong, bent, or broken parts.
Knobs, dials, and switches.
While making the operating checks, observe that the
mechanical action of each knob, dial and switch is
is smooth and free of external or internal binding.
access to the crawl space under the floor for cleaning
a. Remove dust and loose dirt from the exterior
surfaces with a clean soft cloth.
4-9. Touchup Painting Instructions
When the finish on the exterior of the equipment has
The fumes of TRICHLOROETHANE
been scarred or damaged, corrosion may be prevented
by touching up the surfaces as follows:
ventilation whenever it is used; avoid
a. Refer to Federal Standard No. 595a for a
prolonged or repeated breathing of
matching color. SB 11-573 lists painting tools and
vapor. Do not use near an open
miscellaneous supplies required for painting.
flame or hot surface; trichloroethane
is nonflammable but heat converts
b. Refer to TB 43-0118 for instructions on-painting
the fumes to a highly toxic phosgene
and preserving Electronics Command equipment.
gas. The inhalation of this gas could
When touchup painting, a perfect match with the original
result in serious injury or DEATH.
paint surface may not be possible, because of a change
Prolonged or repeated skin contact
in the original pigment as a result of oxidation and
with trichloroethane can cause skin
differences in manufacture. The prevention of corrosion
inflammation. When necessary, use
and deterioration is the. most important consideration in
gloves, sleeves and aprons which
touchup painting; appearance is secondary. However,
the solvent cannot penetrate.
this does not mean that appearance of the equipment is
b. Remove grease, fungus, and ground-in dirt from
not important Touchup painting should be accomplished
the equipment. Use a cloth dampened (not wet) with
neatly and competently. Inspection personnel in the
field should make allowances for slight color mismatch
where minor touchup has been done, but not for neglect,
Do not press on the indicator face
unskillful manner, or in cases where the need for
(glass) when cleaning; the indicator
refinishing is obvious.
may be damaged.
c. Use No. 000 sandpaper to clean the surface
c. Clean indicator glass; use a soft clean cloth.. If
down to the bare metal; obtain a bright clean finish.
difficulty in removing dirt occurs, dampen the cloth with
Sand the area back to solid paint and feather the paint
water. Mild soap may be used to make cleaning more
edge that leads to exposed metal. Wipe the area clean.
d. Apply to the bare metal surface one coat of zinc
d. A panel lifter furnished with the raised floor and
chromate metal primer, and two thin finish coats of the
supplied by Liskey Aluminum Inc. is used to gain
matching color enamel.
Section III. BUILDING AND CHANGING CIRCUITS
4-10. Telecommunications Service Orders' (TSO's)
Telecommunications Service Orders (TSO's). The TSO
The basic circuit design information for all new or
is the authorization from DCA Headquarters or a DCA
area to activate, change, or deactivate