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I N S T A L L A T I O N , O P E R A T I O N A N D M A I N T E N A N C E M A N U A L
c) Cut the rings from the spiral at an angle of 45°C diagonally across the
guide line no gap is left between the ends. See Figure.
3. Insert the first ring and tap it to the bottom of the stuffing box. Each following ring
should be installed in the same manner and positioned in the stuffing box so that
the split is advanced 90 deg. Install the lantern ring in its proper position to align
with the sealing connection allowing for movement of ring deeper in to the box as
packing is compressed. See Figure.
4. When the correct numbers of rings have been inserted, the last packing ring should
not protrude past the stuffing box face, so that the gland may be properly seated in
the stuffing box bore.
5. Bring the gland follower up securely against the last packing ring and tighten the
nuts evenly to give pressure.
6. Turn the shaft to ensure it does not bind on the bore or the gland follower.
7. Pressurize the stuffing box, ensuring air is not trapped. A packed gland must leak
and leakage should take place commencing soon after the stuffing box is
pressurized.
8. Until steady leakage take place, the pump may overheat. If this happens, the pump
must be stopped and allow to cool and, when started, leakage should take place. If
it does not, this operation should be repeated. Gland nuts should not be slackened.
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D E C C A N I N D U S T R I E S
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