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 TM 55-1905-220-14-10
5-9. FUEL INJECTOR-MAINTENANCE INSTRUCTIONS (Continued).
LOCATION
ITEM
ACTION
REMARKS
OVERHAUL-INSPECTION (Cont)
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. Also
check for enlarged orifices in the
spray tip. Replace damaged or
excessively worn parts. Check the
minimum thickness of the lapped
parts as noted in the chart.
5-274
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