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TM 10-4320-343-14
c .
Read opening pressure and inspect spray pattern.
NOTE
Readings should be 2537-2653 psi (175-183 bar) for used nozzle.
Readings
should be 2610-2726 psi (180-188 bar) for new nozzle, or new spring in
nozzle.
The jet pattern must be solid without surrounding mist.
d.
Reduce pressure to 362.5-435 pounds (25-30 bar) below specified opening
pressure, check that no fuel dribbles from nozzle.
e .
Adjust injector nozzle opening pressure by adding shims to increase or
removing shims to decrease (paragraph 5.5.7) .
f .
Repeat test as required, then remove injection nozzle from nozzle tester.
5-20
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