5
film of grease. The closure door face should
be parallel with and concentric to the face of
the barrel collar. If these two faces become
misaligned, use the eight setscrews located in
the hinge's mounting bracket hubs to bring
the faces into correct alignment. Each hub has
four setscrews. See Figure 5, below.
Figure 5. Aligning Door and Barrel Collar
Face Using Setscrews
2.0 Operation
2.1 General
A. As shown in Figures 5 and 6, a warning plate
is attached to the front of the closure. This
warning concerns personal safety precautions
and must be observed to prevent injury to
personnel. Always keep this plate legible.
Figure 6. Warning Plate
B. The closure contains a pressure warning lock
to alert the operator to pressure in the vessel
before the closure is opened. The lock is
mounted on top of the barrel collar, as shown
in Figure 7. The pressure warning lock is
integral to the clamp ring and must be
removed before the clamp ring can be spread.
Figure 7. Pressure Warning Lock
C. Always clean the O-rings and O-ring surfaces
and coat them with a thin film of grease each
time the closure is open. Inspect for cuts,
scratches, or deterioration. Replace if there is
any sign of damage. See Figure 8.
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