Cleaning and Inspection -706880629

TM 5-4210-233-14&P-1

4-199. AIR OPERATED AERIAL DISCHARGE VALVE - Continued

(2) Remove four screws (19), two locating plates (20), retaining ring (21), gasket (22) and seat (23).

Discard gasket.

c. Cleaning and Inspection.

WARNING

Dry cleaning solvent P-D-680 is potentially dangerous. Avoid

repeated and prolonged breathing of vapors and skin contact

with the liquid. Do not use near open flame, arcing equipment

or other ignition sources. Always wear eye protection and

protective clothing. The flash point of P-D-680 is 100 to 138

deg. F (38 to 59 deg. C).

(1) Clean all metal parts in dry cleaning solvent (Item 3, Appendix E).

WARNING

Death or serious injury could occur if compressed air is

directed against the skin. Do not use compressed air for

cleaning or drying unless the pressure is/has been reduced

to 30 psi (2.11 kg/cm ) or less. When working with com-

pressed air, always use chip guards, eye protection, and other

personal protective equipment.

(2) Dry all parts with compressed air.

(3) Inspect valve body (4), seat (23) and thrust washer (18) for damage. Replace parts or entire

valve as necessary.

d. Assembly.

(1) Install seat (23), new gasket (22), and retaining ring (21). Install two locating plates (20) and

secure with four screws (19).

(2) Install thrust washer (18), new gasket (17), cover (16) and secure wtih four lockwashers (15) and

four screws (14).

e. Installation.

(1) Install valve (4), new gaskets (13), and elbow (12), and secure with eight bolts (11), eight nuts

(10), and eight lockwashers (10A).

(2) Slide seal (8) on pipe (9) and position between grooves in pipe (9) and elbow (12). Use new seal

if necessary.

(3) Install two clamps (7) and secure with two bolts (6) and two nuts (5).

(4) Install actuator (3) on valve (4) and secure with four washers (2) and nuts (1).

f. Follow-on Maintenance.

(1) Connect batteries (see para 4-114).

4-500