Installation -706880340

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

4-39. #1, #2 AND AERIAL DISCHARGE DRAIN VALVES- Continued

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/cm2) or less. When working

with compressed air, always use chip guards, eye protec-

tion, and other personal protective equipment.

(2) Dry all parts with compressed air.

(3) Inspect valve body (7) for cracks and damaged threads. Replace as necessary.

(4) Inspect plunger (4) for grooves or cracks. Replace as necessary.

c. Installation.

(1) Install two new O-rings (11) on plunger (4).

(2) Secure hose (6) with clamp (12) and fitting (5) to valve body (7).

(3) Install drain hose (1 0) and hose clamp (9).

(4) Secure valve body (7) to panel with two screws (8).

(5) Apply grease (Item 1, Appendix E) to O-rings (11).

(6) Install plunger (4) with O-ring (11), rod (3) and knob (2) in valve port.

(7) Install snap ring (1).

d. Follow-on Maintenance.

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

4-211