Figure 8-19. Lifting and supporting outer edge of installed bottom sections

TM 5-5430-209-12

(d) Install finger-tightened nuts on bolts in the

lap seam and follow the procedure in c (4) above.

(e) Lift free side of last section (1) and slide

several pieces of lumber (2) under it. The lumber

supports the last section and, at the same time, acts as

slide bars in adjusting the sections.

(f) Place several pieces of bolt channel (5)

equally spaced on top of sections (1 and 7) along the

length of the seam. Remove appropriate nuts from

bolts (3) in left lap seam of first intermediate section (4).

Attach one end of each bolt channel (5) to a bolt in the

seam and secure with a nut.

(g) Insert drift pins (5) through channels (5)

and last section (1), with the pins bearing against the left

Figure 8-19. Lifting and supporting outer edge of

edge of first bottom section (7). This will produce

installed bottom sections

enough leverage to bring the right lap seam of last

section (1) in alinement with the bolts in the left lap

seam of first bottom section (7).

(e) Move the support progressively toward or

(h) With last section (1) in final position, the

away from the space remaining for the installation of

right lap seam will drop over the bolts in the left lap

this section as required. As the supports are shifted, the

seam of first section (7) upon removal of lumber (2) and

slope made in the jointed sections will cause the weight

channels (5). Install finger-tightened nuts on the bolts.

of each section to react with the angle of the slope,

NOTE

forcing the raised sections to slide down the slope. The

If necessary, combine the following instructions

direction of shift combined with the weight of the

with the adjusting procedure (1)above

sections involved, will change relationship of the bolts in

(2) Alternate adjusting method.

the left lap seam of first section (7) with the right lap

(a) Adjust next-to-last section (8, fig. 8-18)

seam boltholes in last section (1).

so the left lap seam of last section (1) will slip over the

(f) With last section (1) in final position, the

bolts in the right lap seam of next-to-last section (8).

right lap seam will drop over the bolts in the left lap

(b) Install finger-tightened nuts on the bolts

seam of first section (7).

and follow the procedure in c (4) above.

(g) Install finger-tightened nuts on the bolts.

(3) Installing special gasket.

slide several short lengths of 2-by 4-inch lumber under

(a) When the left lap seam of last section (1,

it. The lumber will keep the section clear of the bolts in

fig. 8-20) is placed over the bolts in the right lap seam

the left lap seam of first section (7) and act as slides

of next-to-last section (3), a small gap (2) is formed

during the shifting of the sections.

under the seam. This is caused by the off-spacing of

(d) Lift a portion of the outer edge of the

the joining seams of the sections.

installed sections and place it on boxes or other types of

easily moved supports (fig. 8-19).

8-10