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 TM 55-1905-220-14-11
5-72.
FUEL INJECTOR - MAINTENANCE INSTRUCTIONS (Continued).
LOCATION
ITEM
ACTION
REMARKS
OVERHAUL-CLEANING (Cont)
j. Examine the spray tip seating
surface of the injector nut and
spray tip for nicks, burrs, erosion
or brinelling. Reseat the surface
or replace the nut or tip if it is
severely damaged.
k. The injector valve spring plays an
important part in establishing the
valve opening pressure of the
injector assembly. Replace the
worn or broken spring. Inspect the
sealing surfaces of the injector
parts indicated by arrows below.
l. Examine the sealing surfaces with
a magnifying glass as shown below
for even the slightest imperfections
will prevent the injector from
operating properly. Check for burrs,
nicks, erosion, cracks, chipping and
excessive wear.
5-1029
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