#1, #2 AND AERIAL DISCHARGE DRAIN VALVES

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

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

This task covers:

a. Removal

c. Installation

b. Cleaning and Inspectione. Follow-on Maintenance

TOOLS REQUIRED

EQUIPMENT CONDITION

Tool Kit, General Mechanics, Automotive

Main Engine Shutdown (see para 2-12 .)

(Appendix B, Section III, Item 1)

APU Shutdown (see para 2-16 .)

Batteries Disconnected (see para 4-114 .)

MATERIALS/PARTS REQUIRED

Grease, Item 1, Appendix E

Dry Cleaning Solvent, Item 3, Appendix E

O-rings (Figure 18, Appendix F)

a. Removal.

(1) Remove snap ring (1).

(2) Remove knob (2), rod (3), and plunger (4) with

O-rings (11) as assembly.

(3) Remove two screws (8) and remove valve body (7)

from panel.

(4) Loosen hose clamp (9) and remove drain hose (10).

(5) Turn valve body (7) until fitting(5) and hose (6)

with clamp (12) is free of valve body (7).

(6) Remove and discard two 0-rings (11).

b. 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 parts in dry cleaning solvent (Item 3, Appendix E).

4-210