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 TESTS AND ADJUSTMENTS (CONTINUED)
NOZZLE ASSEMBLY
WARNING
Q
1
Do not allow nozzle spray to contact skin. Diesel
fuel under pressure can penetrate flesh and cause
serious injury and infection.
NOTES
Nozzle and holder assemblies are designed to
open at 1900-1950 psi. After several hundred
hours of operation, nozzle pressure will decrease
to an acceptable 1750 psi. Use nozzle pressure
tester to test and adjust nozzle assemblies.
If streamers of fuel are visible or nozzle drips
before reaching 1750 psi minimum opening
pressure, nozzle is dirty or defective. If dirty,
clean nozzle and valve (p 3-24).
If defective, replace nozzle and valve together.
Some chattering of nozzle is normal during
pressure tests.
/
A Remove setscrew (l).
B Back off adjusting nut
several turns.
TM 9-2815-221
4-13
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