Azbil ACN Series, Руководство пользователя

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11-5
Step 7:
Being careful not to damage the surface of the stem, install the packing flange.
Step 8:
After applying the anti-seize compound indicated in Table 11-3 [Never-Seez made by Bostik,
Inc., in the U.S.] to the surface of the threads of the stud bolts and the bearing surface of the
nuts, tighten them by hand.
3. Tightening
Step 1:
With reference to Fig. 11-5, check the position of the Belleville springs through the front
window of the spring case. When the Belleville springs are set properly, the lower edge of the
outer diameter of the lowest Belleville spring almost coincides with the lower scale mark of the
spring case. (In some cases, it does not exactly coincide because of the dimensional tolerance
of the Belleville springs.)
Front appearance
of the spring case
Scale marks
Lower edge of the
outer diameter
of the lowest piece
Before tightening
After tightening with
the specified torque
Fig. 11-5. Loading conditions of the Belleville springs