TM 9-4110-255-14
5-42. NOZZLE TESTING AND REPLACEMENT .
This task covers:
a. Removal
b. Testing
c. Installation
INITIAL SETUP
Tools:
Equipment Conditions:
Injector Test Bench
Top access panel removed (para 4-13).
7, Section III, Appendix B
Fuel supply tube removed from nozzle (para 4-62).
Injector Extractor
Fuel return hose removed from nozzle (para 4-63).
10, Section III, Appendix B
Mechanical Puller
11, Section III, Appendix B
Materials / Parts:
Wiping Rags
9, Appendix E
Washer
46, Appendix G
Washer
47, Appendix G
a. Removal.
(1) Remove nut (1) and washer (2).
NOTE
The nozzle assembly uses special washers as spacers/seals. The washers are not re-usable and
must be replaced with the same quantity and thickness washers during installation.
(2) Assemble injector extractor and mechanical puller, attach to nozzle assembly (3) and remove n zzle
o
assembly with washer(s) (4) and brace (5). Note quantity and thickness of washers. Discard washers.
(3) If stud (6) is damaged, remove it.
b. Testing.
(1) Place the nozzle assembly (3) on the injector test bench and bypass the pressure gauge so it does not read
injector test bench pressure.
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