c. If the measured pre-lift value deviates
from the specified limit, replace the pin
(14, 16), lift piece (13), spacer (15), and
nozzle assembly (A) with a new Ònozzle
service kitÓ.
¥
Inspection of secondary opening pressure
a. After confirming the pre-lift, operate the
nozzle tester and increase the internal
pressure up to 350 ~ 450 kgf/cm
2
to fully
lift the needle valve.
b. Release the nozzle tester handle to
decrease the tester pressure, then take
a note of the movements of the dial
gauge.
c. Take the indicated value on the pressure
gauge at the point of time when the nee-
dle of the dial gauge indicates the spec-
ified needle valve lift value. (In general,
pre-lift Ò Ó + 0.05mm. Refer to following
figure).
- 150 -
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