PUMP DRAIN VALVE -706880383

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

4-50. PUMP DRAIN VALVE

This task covers:

a. Removal

d. Assembly

b. Disassembly

e. Installation

c. Cleaning and Inspection f. 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

Dry Cleaning Solvent (Item 3, Appendix E)

Repair Kit (Figure 37, Appendix F)

a. Removal

NOTE

Access for pump drain valve is from beneath truck.

(1) Locate pump drain valve by operating handle for pump drain valve on street side operators

panel.

(2) Remove and discard cotter pin (1).

(3) Remove control cable (2) from valve stem (3).

(4) Remove capscrews (4) and lockwashers (5).

(5) Remove bolts securing bracket (6).

(6) Separate bracket (6) from valve body (7).

b. Disassembly

(1) Remove plunger (13) and end cap (8) as assembly.

Remove and discard plunger.

(2) Remove and discard O-ring (9), quad ring (10), and

groove pin (11).

(3) Remove and discard two u-cup packings (12).

c. Cleaning and Inspection.

WARNING

Dry cleaning solvent P-D-680 is potentially

dangerous. Avoid repeated and prolong d

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).

4-254