DANGEROUS CLEANING SOLVENTS

TB 9-289

(a) Fabricate a sealed can or drum with threading for installation of pressure control breather valve and

air source fitting.

NOTE

The fabricated test drum with valve and air source installed must be air-tight to

properly test valve operation. If necessary, use silicone compound (MIL-I-8660B)

to seal drum around fittings/seams.

(b) Install air pressure source to fittings. Attach manometer or air pressure gauge between drum and air

source.

manometer and test drum.

(d) Apply soap suds solution to breather valve, fabricated air fitting and all seams of test drum.

(e) Open source of air pressure and allow pressure inside drum to 5 psi as indicated by air pressure

gauge.

(f) Shut down air pressure source and observe that pressure inside test drum is escaping through

breather valve only. Observe that pressure reaches ambient pressure quickly.

(g) Clean and set aside serviceable breather valve. Discard valve, if defective.

b. Cleaning

WARNING

DANGEROUS CLEANING SOLVENTS

Some cleaners have high concentrates of vapors which are anesthetic and

dangerous to life. Use them only with adequate ventilation. Follow directions on

containers. Avoid eye irritation or dizziness. Avoid prolonged or repeated contact

with skin. Do not take internally. Avoid contact with flame or hot surfaces as

contact may form corrosive fumes.

(1) Clean all desiccant port covers/assemblies removed from container as outlined in (2) below.