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 TM 5-5430-209-12
e. Installing Last Bottom Section.
(1) First Adjusting Method.
(a) Place last section over the space
(1) Place lap seams of last section (7, fig. 8-12)
remaining for its installation.
over lap seams of adjacent sections (8 and 4).
(b) Check bolt spacing and alinement along
(2) Place small end of over bolts (3). This is a vital
each lap seam, and across the section between the lap
point in the tank bottom; make sure it is secure against
seams (fig. 8-17).
leakage.
(3) Install two wedge gaskets (1, fig. 8-16) over
bolts (3, fig. 8-12).
Figure 8-16. Installing wedge gaskets at installation of
Figure 8-17. Checking Bolt spacing at installation of last
last bottom sections
bottom section.
f. Adjustment of Bottom Sections. Some adjustment
(c) Adjust next-to-last section (8, fig. 8-18)
so the left lap seam of last section (1) will slip over the
is always required in the installed sections before the
bolts in the right lap seam of next-to-last section (8).
last section can be correctly positioned. Either one of
two procedures described below is generally used to
adjust the installed sections.
1.
LAST BOTTOM SECTION
2.
LUMBER, 2 - BY 4-INCH
3.
BOLT
4.
FIRST INTERMEDIATE BOTTOM SECTION
5.
BOLT CHANNEL
6.
DRIFT PIN
7.
FIRST BOTTOM SECTION
8.
NEXT-TO-LAST BOTTOM SECTION
ME 5430-209.12/8-18
Figure 8-18. Adjusting installed bottom sections.
8-9
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