Adjusting secondary opening pressure
a. In the event that the measured value devi-
ates from the specified limit, readjust the
primary opening pressure if the amount of
deviation is small. (to the standard range of
the primary opening pressure)
- If the secondary opening pressure is
lower than the standard value: Adjust the
primary opening pressure up to the top
limit of the standard vague, and then
measure the secondary opening pres-
sure.
- If the secondary opening pressure is
higher than the standard value: In a
reverse manner, readjust the primary
opening pressure down to the bottom
limit of the standard value.
b. If the secondary opening pressure still
deviates from the specified limit in spite of
the readjusting the primary opening pres-
sure, take off the nozzle fixing portion from
the nozzle holder and remove the adjusting
shim (10).
c. If the secondary opening pressure is high-
er than the standard value, fit a thinner
adjusting shim than the existing one.
d. After replacing the existing adjusting shim,
measure the secondary opening pressure and continue the adjustment until a value satisfying
the standard value.
Adjusting shim for secondary opening pressure
(Out diameter = l9.5, Inner diameter = l4.5)
- 148 -
MAINTENANCE OF MAJOR COMPONENTS
Part No. Thickness (mm) Part No. Thickness (mm)
150538-4900 0.40 150538-5300 0.56
150538-5000 0.50 150538-5400 0.58
150538-5100 0.52 150538-5500 0.60
150538-5200 0.54 150538-5600 0.70
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