Installation of First Ring Side Staves

TM 5-5430-209-12

(2) Install strip gasket (3) to cover all boltholes.

NOTE

When one roll of gasket is used up and a new one is

The nuts are not tightened until the last stave

started, the overlap should extend over two boltholes.

of the ring is in place.

Apply sealing compound at each end of overlap.

(3) Install wedge gasket (2, fig. 8-26) to fill the

(3) Insert wedge gasket (4) underneath gasket (3) at

space left by lap offset at vertical seam.

each lap formed by adjoining bottom sections.

(4) Insert /2-by 114 inch bolts (2) through the

bottom and gasket (3) in that order. Leave three

boltholes (5) open at the middle of each bottom section.

(5) As staves are erected, the bottom chimes

overlap at points of omission of the bolts. Insert bolts

(2) through boltholes (5) as each stave is overlapped.

CAUTION

Omit steel recessed washers on all chime

bolts.

8-10. Installation of First Ring Side Staves

a. General. The first stave installed must be one

fitted with a pipe coupling of the same size as the tank

RADII GASKET

WEDGE GASKET

supply pipe.

BOTTOM CHIME

b. Installing First Stave.

STRIP GASKET

(1) Place first stave (1, fig. 8-25) over the proper

NUT

bolts (2, fig. 8-24) so that it straddles a radial seam in

ME 5430-209-12/8-26

the bottom. As a result, each subsequent stave (2, fig.

Figure 8-26. Locating radii and wedge gaskets at bottom

8-25) will straddle a radial seam.

chime.

(4) Install radii gasket (1) underneath gaskets (4) of

the vertical seam at bottom chime (3).

(5) Install radii gasket (1, fig. 8-27) underneath

gaskets of the vertical seam at the top chime.

1. RADII GASKET

1. FIRST STAVE INSTALLED

2. BOLT

2. PLAIN STAVE

ME 5430-209-12/8-27

ME 5430-209.12/8-25

Figure 8-27. Locating radii gasket at top chime.

Figure 8-25. Installing first stave in first ring of tank.

(2) Install nuts (5, fig. 8-26) on all bolts (2, fig. 8-

24) to fasten the stave loosely.

8-14