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TM 5-4520-256-14
3-15. TEST/REPLACE FUEL INJECTORS
This task covers:
a.
Removal
b.
Inspection/Test
c.
Installation
INITIAL SETUP
Test Equipment
Materials/Parts
Bosch pump outfit No 003-3345
Diesel fuel oil (Item 6, Appendix C)
Grease (Item 7, Appendix C)
Tools
Equipment
Injector extractor No. 110030
Condition
Para.
Condition Description
Injector extractor No. 150800
3-12
Fuel injector lines removed
Injector gasket remover No. 120630
General Safety Instructions
Well-ventilated area required
REMOVAL:
WARNING
Death or serious injury could occur if diesel fuel oil is not handled carefully. Use in a well-
ventilated area away from open flame, arcing equipment, ignition sources, heaters, or excessive
heat. Always store fuel in proper, marked containers. DO NOT SMOKE.
CAUTION
The fuel injection system is extremely
intricate and complex. All possible
care should be taken in the removal,
inspection, testing, and assembly of
these components. While handling
the fuel injector, be extremely careful
not to touch the nozzle or the pin
assembly on the nozzle end.
1
Remove fuel return line (1).
2
Remove nuts (2) and retainers (3).
3-67
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