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 TM 55-1905-220-14-11
5-72.
FUEL INJECTOR - MAINTENANCE INSTRUCTIONS (Continued).
LOCATION
ITEM
ACTION
REMARKS
OVERHAUL-CLEANING (Cont)
Do not buff excessively. Do not use a steel wire
buffing wheel or the spray tip holes may be distorted.
g. The exterior surface of an injector
spray tip may be cleaned by using a
brass wire buffing wheel. To obtain
a good polishing effect and longer
brush life, the buffing wheel should
be installed on a motor that turns
the wheel at approximately 3000 rpm.
A convenient method of holding the
spray tip while cleaning and polish-
ing is to place the tip over the
drill end of the spray tip cleaner
tool J1243 and hold the body of the
tip against the buffing wheel. In
this way, the spray tip is rotated
while being buffed.
h. When the body of the spray tip is
clean, lightly buff the tip end in
the same manner. This cleans the
spray tip orifice area and will not
plug the orifices.
Use protective eye goggles when using compressed air.
i. Wash the spray tip in clean fuel oil
and dry it with compressed air.
j. Clean and brush all of the passages
in the injector body, using fuel
hole cleaning brush J8152 and rack
hole cleaning brush J8150. Blow
out the passages and dry them with
compressed air.
5-1024
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