Revision 6
Stuffing Box Installation:
16.
Replace the stuffing box on the pump body and start four ( 4) Allen bolts by hand. The
packing spring tension inside the stuffing box
will tend to hold the stuffing box away
from the fluid cylinder
(Figure 8-17).
Figure 8-17. Inspecting gap between stuffing box and fluid cylinder.
17. Tighten down the Allen bolts,
in
increments, according to the torque sequence (Figure
8-18).
Keep checking for even alignment of the stuffing box to the pump (not "cocked"
sideways). When the stuffing box
is
snug
to
the body, make sure that the fit
is
even.
Use the torque wrench
to
final tighten the bolts, in torque sequence,
to
the specified 300
lb.-ft.
(406. 7 Nm) for A-Cylinders and 150 lb.-ft. (203.4 Nm) for B-Cylinders.
1
4
3
2
Figure 8-18. Tightening Allen bolts in sequence.
© Copyright October,
2001
NLB Corporation
8-1
6
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