APU INJECTION NOZZLE -706881071

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

5-77. APU INJECTION NOZZLE

This task covers:

a. Removal

c. Assembly

b. Disassembly

d. 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.)

Nozzle Tester (Appendix B, Section III, Item 91)

Batteries Disconnected (see para 4-114.)

Nozzle Cleaning kit (Appendix B, Section III, Item 92)

MATERIALS/PARTS REQUIRED

Solvent (Item 3, Appendix E)

Oil (Item 10, Appendix E)

Gaskets (Figure 211, Appendix F)

a. Removal.

(1)

Loosen door screw and remove air housing door.

(2)

Remove four capscrews, four

lockwashers,

housing cover, and nozzle cover.

(3)

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

nozzle (5) and pump (6).

(4)

Remove two capscrews (2), two flatwashers (3),

flange (4), nozzle and holder (5).

(5)

Remove nozzle (7) from holder (8) and remove

three gaskets (9, 10, 11) and shield (12). Discard

gaskets. Remove and retain elbow (13).

b. Disassembly.

(1)

Clamp the nozzle holder body in a vise and

remove the nozzle cap nut and nozzle.

(2)

Install the nozzle cap nut loosely to protect the

lapped surface of the holder body.

(3)

If necessary to further disassemble the nozzle,

remove the pressure adjusting screw and lift out

the spring and spindle assembly.

5-400