•
Adjusting secondary opening pressure
a. In the event that the measured value
deviates from the specified limit, read-
just the primary opening pressure if the
amount of deviation is small. (to the
standard range of the primary opening
pressure) (Figure 4-51)
•
If the secondary opening pressure is
lower than the standard value: Adjust
the primary opening pressure up to the
top limit of the standard value, 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
pressure, take off the nozzle fixing por-
tion from the nozzle holder and remove
the adjusting shim(10). (Figure 4-52)
c. If the secondary opening pressure is
higher 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 is obtained.
- 120 -
EQM4040I
<Figure 4-51> Readjusting primary opening
pressure
EQM4058I
<Figure 4-52> Removing adjusting shim
6 Adjusting shim for secondary opening pressure(D=N 9.5:d=N4.5)
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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