gaskets must be placed between the chimes and the
rubber gasket material at the seams, the top, and the
bottom of all of the side sheets to ensure a leakproof
SECOND STAVE. Install the staves in a
counterclockwise direction around the bottom. To
assist in the installation of this stave, push two or
three bolts flush with the gasket in the chime of the
bottom to the right of the first stave. Install the
rubber gaskets and steel recessed washers on all of
the vertical seam bolts.
Set the stave in position with the left seam
outside the right seam of the first stave. Use driftpins
in the open bolt holes in the stave to align the holes
in the stave. Install the nuts only at every sixth or
tenth bolt in the row. As the remaining staves are
installed, check carefully the position and the
tightness of all the radii, the strip, and the wedge
REMAINING INTERMEDIATE STAVES.
Face the outside of the second stave and install 11
staves to the right of the second stave or in a
counterclockwise direction around the bottom.
Assemble the hook ladder, and hook it over the inside
of the staves. As the staves are installed, stand on the
ladder and fit all of the bolt heads squarely into the
channels. All of the bolt heads must be fitted squarely
Figure 9-13.I.ocation of the scaffold around
the top chime of the staves.
into the stave joint channels to ensure proper
tightening of the nuts.
LAST STAVE. To assist in the installation of
this stave, push all of the bolts (fig. 9-12, #2) in the
chime of the bottom flush with the gasket to provide
clearance for sliding in the last stave. Set the stave in
position with the left seam outside the right seam of
the next-to-last stave and the right seam inside the
left seam of the first stave. Loosen the bottom chime
nuts of staves #2 and #3. Lift the first stave #3
slightly, so the bottom chime of the stave #1 slips into
place. Use driftpins and align the holes and the bolts
in staves #1, #2, and #3. Install the nuts on the bolts
in the chime of the bottom. Install 1-by 1 l/2-inch
bolts (fig. 9-13, #2) in the third and twentieth bolt
holes of the vertical seam, counting down from the
top chime of every stave. These are scaffold-mounting
bolts. Install the remaining bolts in all of the seams.
Install the gaskets and washers with the cup side
down over the gaskets
Figure 9-14.Removing the timber blocking.