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 TM 55-1905-221-14-4
6-31. FUEL INJECTORS (Continued).
LOCATION/ITEM
ACTION
REMARKS
TESTING
1. Fuel
a. Injector rack and plunger
Injector
movement.
Check to see if plunger works
freely in its bushing by placing
the injector against a bench as
shown and depressing the follower
to the bottom of its stroke while
moving the rack back and forth.
Lack of free rack movement
indicates the internal parts of
the injector are dirty or damaged.
WARNING
The injector must always be held in such a way as to prevent any fuel spray from
penetrating a person's skin. Fuel oil which enters the blood stream may cause a
serious infection.
6-549
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