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 TM 55-1905-220-14-10
5-9. FUEL INJECTOR-MAINTENANCE INSTRUCTIONS (Continued).
LOCATION
ITEM
ACTION
REMARKS
OVERHAUL-CLEANING (Cont)
k. Carefully insert reamer J21089 in
the injector body. Turn it in a
clockwise direction a few turns,
then remove the reamer and check
the face of the ring for reamer
contact over the entire face of the
ring. If necessary, repeat the
remaining procedure until the
reamer does make contact with the
entire face of the ring. Clean up
the opposite side of the ring in
the same manner.
l.
Carefully insert a .375" diameter
straight fluted reamer inside the
ring bore in the injector body.
Turn the reamer in a clockwise
direction and remove any burrs
inside the ring bore. Then wash
the injector body in clean fuel oil
and dry it with compressed air.
m. Carefully insert carbon remover
tool J9418-1 in the injector nut.
Turn it in a clockwise direction to
remove the carbon deposits on the
flat spray tip seat as shown below.
Remove the carbon deposits from the
lower end of the injector nut with
carbon remover J9418-5, in the same
manner. Use care to prevent
removing any metal or setting up
burrs on the spray tip seat.
5-270
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