c. Insert ½-by 1 V4-inch bolts (4) through chime and
strip gasket (2) in that order. Leave two bolt holes open
at the middle of each stave.
d. As second ring staves are erected, the bottom
chimes overlap at points of missing bolts. Insert bolts
(4) through bolt holes as each stave is overlapped.
8-13. Gin Pole
Erection of second and third ring staves require the
assembly of gin pole components, with foot spike,
provided in the storage tank erection outfit.
8-14. Assembly and Installation of Second and Third
a. General. There are 37 plain staves (1, fig. 8-30)
in both the second and third rings. These staves are
slightly shorter and are made of lighter gage metal than
the first ring staves. They have two rows of bolt holes in
b. Assembling Staves. Refer to paragraph 8-9 and
assemble the staves.
c. Dressing of Staves.
(1) Strip gasket, channels, and bolts placed along
the right seam are installed as described in paragraph 8-
(2) Position second ring staves (1, fig.
against the first ring so that each stave straddles a
d. Installing First Stave in Second Ring.
(1) Install the staves with radii gaskets (1, fig. 8-26)
and (1, fig. 8-27) in a counterclockwise direction as
described in paragraph 8-10 b.
(2) Remove a bolt in bottom chime of first ring
stave near a vertical seam fitted with scaffold bracket
(3, fig. 8-32).
1. GIN POLE
2. FIRST STAVE OF
3. SCAFFOLD BRACKET
4. BLOCK AND TACKLE
5. ROPE DECK HOOK
6. GUY LINE
Figure 8-32. Hoisting first stave of second ring.