Cleaning - TM-11-5820-518-200023

TM 11-5820-518-20

CAUTION

3-6. Cleaning

Do not allow the cleaning compound to

a. External Blower Air Filter.

flow into sleeves or conduit covering any

(1) Remove the external blower air filter

wires connected to the contact terminals

(para 3-14a(l) and (2)).

of the receptacle.

WARNING

(3) Remove dirt and any traces of oil or grease

Adequate ventilation should be provided

from receptacles, insulation, and contacts with the

while using TRICHLOROTRIFLUOROE-

Apply the cleaning com-

cleaning compound.

Prolonged breathing of vapor

THANE.

pound sparingly with a small camel's-hair brush.

should be avoided. The solvent should not

be used near heat or open flame; the prod-

c. Lamps, Lampholders, and Lenses (C-4677/

u c t s of decomposition are toxic and

ARC-51X Only).

irritating.

Since TRICHLOROTRIFLU-

(1) Clean the dial lamps with a lint-free cloth

OROETHANE dissolves natural oils, pro-

moistened with the cleaning compound. Dry and

longed contact with skin should be avoided.

polish the dial lamps with a clean, dry lint-free

When necessary, use gloves which the sol-

cloth.

vent cannot penetrate. If the solvent is

taken internally, c o n s u l t a physician

(2) Clean the exteriors of the lampholders with

immediately.

a soft-bristle brush and an air jet.

(2) Observe whether the air filter cells are

(3) Wipe the lens surfaces and the MEG-

clogged with dirt. If the air filter appears dirty,

immerse it in a bath of cleaning compound; agi-

ACYCLES indicator window clean with a lint-free

cloth moistened with the cleaning compound.

tate the air filter to remove all dirt from cells.

Wipe dry and polish with a fine lens tissue paper.

(3) Remove the air filter from the cleaning

compound and allow the air filter to dry com-

d. Exterior Surfaces, Front Panels, and Control

pletely before replacing it (para 3-14b(l) and (2))

Knobs.

in the external blower.

(1) Use a soft, damp, clean cloth and an air

b. Cables, Connectors and Receptacles.

jet to remove dust and grime.

(1) Wipe dust and grime off cables, connec-

(2) Wipe off grease or oil with a cloth moist-

tors, and cable clamps with a lint-free cloth moist-

ened with the cleaning compound.

ened with the cleaning compound. Dry the parts

3-7. Preservation

with a clean cloth.

Remove rust and corrosion from metal surfaces

CAUTION

by lightly sanding them with fine sandpaper.

Do not direct the compressed air nozzle

Brush two thin coats of paint on the bare metal

toward the reflectometer rf wattmeter.

to protect it from further corrosion. Refer to

(2) Remove dust from receptacles with a small,

the applicable cleaning and refinishing practices

soft-bristle brush and an air jet. Use clean, dry,

specified in TB 43-0118.

compressed air at a pressure of 25 to 28 pounds

Paragraph 3-8 deleted.

per square inch (psi) if a compressed air source is

Paragraph 3-9 deleted.

available.

3-3

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