Figure 3-10. Raising and prearing outer edge of tank bottom
(b) Install strip gasket (2) to cover all
pipe (1) First stave (a) Place stave (1. fig. 3-11) over
bolt holes. When starting a new roll of gasket material
proper bolt (2) so that the left vertical seam bolt holes
after one roll has been used up, an overlap should be
line up with bottom lap seam. The right vertical seam of
extended to cover two bolt holes.
the third stave will then line up with the bottom lap seam
compound at each end of the overlap.
on the opposite side of the tank.
(c) Insert a wedge gasket (3) under the
(b) Install four equally spaced finger
strip gasket (2) at laps formed by bottom halves (plates).
tightened( nuts to hold stave In position. Run nuts down
(d) Insert 1/2 by 11/2-inch bolts (5) in
by hand to fasten the stave loosely The nut are not
the lap seams and 1/2-by 1-inch bolts (4) through all
tightened until last, stave in ring is in place
remaining holes on outer edge of bottom plate.
Omit steel recessed washers on all
outer edge bolts.
c. Installing Side Statues. The first
stave installed on the tank bottom must be one fitted
with a pipe coupling of the same size as the tank supply