TM 9-4940-568-34
5-87
d.
Testing.
Keep your body clear of test
spray. Fluid can be injected into
the blood stream causing blood
poisoning and possible death.
Always wear eye protection and
protective gloves when
performing fuel injector testing to
prevent possible injury to
personnel.
Fuel is very flammable and can
explode easily. To avoid serious
injury or death, keep fuel away
from open fire and keep fire
extinguisher within easy reach
when working with fuel. Do not
work on fuel system when engine
is hot. Fuel can be ignited by hot
engine.
(1)
Opening pressure test:
(a)
Open valve.
(b)
Operate lever at one stroke per
second.
(c)
Read pressure indicated when nozzle
opens and spray begins. Nozzle
opening pressure should be 220 bar
(3,191 psi).
(d)
If the opening pressure is out of
specification, then change the shim
pack. Adding shims will increase
pressure.
