Page 239 - Root Cause Failure Analysis
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Seals and Packing 221
Figure 18-7 Proper and improper instahtion of packing (Bearings Inc. catalogue).
21. Stagger the butt joints, placing the first ring butt at 12 o’clock; the second
at 6 o’clock; the third at 3 o’clock; the fourth at 9 o’clock; and so forth,
until the packing box is filled (Figure 18-8). NOTE: When the last ring has
been installed, there should be enough room to insert the gland follower ‘L8
to q6 in. into the stuffing box (Figure 18-9).
22. Install the lantern ring in its correct location within the gland. Do not force
the lantern ring into position (Figure 18-10).
Figure 18-8 Stagger butt joints (Bearings Inc. cntalogue).
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Figure 18-9 Proper gland follower clearance (Bearings Inc. catalogue).