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TM 9-4110-257-14
5-39. NOZZLE TESTING AND REPLACEMENT
This task covers:
a.
Removal
b. Testing
c. Installation
INITIAL SETUP
Tools:
Equipment Conditions:
Injector Test Bench
Engine removed (para 5-46).
7, Section III, Appendix B
Fuel supply tube removed from nozzle (para 4-59).
Injector Extractor
Fuel return hose removed from nozzle (para 4-60).
10, Section III, Appendix B
Mechanical Puller
11, Section III, Appendix B
Materials/Parts:
Wiping Rags
3, Appendix E
Washer(s) (As Required)
48, Appendix G
Washer(s) (As Required)
49, Appendix G
a.
Removal.
NOTE
The following procedures apply to both nozzles. (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 nozzle 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.
5-84
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