AERIAL DISCHARGE VALVE PNEUMATIC ACTUATOR -706880630

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

4-200. AERIAL DISCHARGE VALVE PNEUMATIC ACTUATOR

This task covers:

a. Removal

d. Assembly

b. Disassembly

e. Installation

c. Cleaning and Inspection f. Follow-on Maintenance

TOOLS REQUIRED

PERSONNEL REQUIRED: 2

Tool Kit, General Mechanics, Automotive

(Appendix B, Section III, Item 1)

EQUIPMENT CONDITION

Main Engine Shutdown (see para 2-12 .)

MATERIALS/PARTS REQUIRED

APU Shutdown (see para 2-16 .)

Dry Cleaning Solvent (Item 3, Appendix E)

Batteries Disconnected (see para 4-114 .)

Grease (Item 17, Appendix E)

O-rings (Figure 21, Appendix F)

a. Removal

(1) Operate valve to the closed position. Check

that the actuator indicator is in the fully

closed position.

(2) Tag and remove two air lines (1 and 2) from

actuator (3).

(3) Remove four nuts (4) and four washers (5).

Remove actuator (3).

4-501