TM 5-6115-400-35
(6) Dry the tip of the fuel injection nozzle.
Note
Operate the tester handle slowly until the
pressure is approximately 200 pounds
The original fuel injection nozzle-
below the popping pressure and observe
holder assemblies have the opening
the top of the nozzle for fuel leakage. If
nozzle pressure set higher at the
the nozzle does not leak or dribble, the
factory to compensate for the initial
nozzle valve is seating properly on its
set of the spindle spring.
seat in the valve body. If drops of fuel
(5) Adjust the fuel injection nozzle to obtain
collect at a pressure of approximately 200
the specified popping pressure (if
pounds or less below the popping
necessary) as follows:
pressure, the nozzle valve is not seating
(a) Remove the protection cap (1,
properly in the valve body; the valve body
fig.43) from the upper end of the
and valve must be removed for cleaning
fuel injection nozzle and loosen the
and inspection.
adjusting screw locknut (3).
(7) If the fuel injection nozzle proved
(b) While operating the tester handle,
satisfactory when subjected to the
turn the pressure adjusting screw (4)
leakage test above, operate the tester
IN to increase or OUT to decrease
handle at a speed of approximately 100
the popping pressure until the
strokes per minute and observe the
specified pressure is obtained. At
nozzle spray pattern.
this time, hold the adjusting screw
(8) The nozzle tip has four equally spaced
from turning and tighten the
adjusting screw locknut (3).
these holes determine the
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