Table 7-5. Application of Materials for Blocking and Tiedown ofLACV-30 Components Shown in Figures 7-4, 7-5, and 7-6

TM 55-1930-218-14

Table 7-4-Continued

Item

No. Required

Application

railcar stake pocket. The loops are formed by attaching two seals (item L), butted together, at least 18

inches above the stake pocket (detail 3, fig 7-10). Overlap the two lengths of strapping at the top of the load,

tighten, and join with two seals (item L) butted together. All seals at strapping joints must have two pairs of

crimps per seal (detail 4, fig 7-10).

Pad, 1 1/4- x .035- x 18-inch steel strap. Position under and seal to item J at each stake pocket (detail 3, fig

7-10).

Seals, steel strapping. Two seals required for joining strapping at each joint (detail 4, fig 7-10). One seal

required for securing each pad (item K) to strap.

Table 7-5. Application of Materials for Blocking and Tiedown ofLACV-30 Components Shown in Figures 7-4, 7-5, and 7-6

Item

No Required

Application

Brake-wheel clearance. Minimum clearance required is 6 inches above, in back of, and on both sides of and 4

inches underneath wheel (fig 7-4).

Styrofoarn beadboard, 4-inch x 4- x 8-foot sheets, or 4-inch x 2- x 8-foot sheets. Distribute beneath the

sectionalized components to protect the hinge and attachment points and to provide separation of the

components from the railcar deck. Position between stacked components to protect the hinge attachment

points and to provide separation between components. Arrange so that approximately 50 to 60 percent of all

bottom surfaces rest on the styrofoam beadboard.

Strapping boards, 2- x 4- x 10-inch lumber, beveled to fit top edges of modules. Position under steel straps

(item D) to protect flanges and comers of modules.

Steel straps, 1 1/4- x .035-inch x cut-to-length. Position as shown in figure 7-4. Each strap is fabricated by

looping a length of strapping through the stake pocket on each side of the raiicar, with a pad (item E) between

the strap and the stake pocket. The loops are formed by attaching two seals (item F), butted together, at least

18 inches above the stake pocket (detail 3, fig 7-10). Overlap the two lengths of strapping at the top of the

load, tighten, and join with two seals (item F) butted together. All seals at strapping joints must have two pairs

of crimps per seal (detail 4, fig 7-10).

Pad, 1 1/4- x .035- x 18-inch steel strap. Position under and seal to item D at each stake pocket (detain 3, fig

7-10).

Seals, steel strapping. Two seals required for joining strap at each joint (detail 4, fig 7-10). One seal required

for securing each pad (item E) to strap.

Lower end brace, 4- x 8-inch x 9-foot. Stand on 4-inch edge against the end of the bottom module and toenail

to the railcar deck with ten 40d nails.

Backup cleats, 4- x 4-inch x 4-foot. Place against item G and nail to railcar deck with five 30d nails through

each.

Upper end brace. Consists of four pieces of 2- x 6-inch x 7-foot lumber nailed to one piece of 4- x 8-inch x 9-

foot lumber. With two 40d nails through each 2- x 6-inch x 7-foot piece. Place the 4- x 8-inch x 9-foot piece

against the end of the top module and nail the lower ends of the 2- x 6-inch x 7-foot pieces to the backup

cleats (item H) with three 20d nails through each.

Lower end brace. Consists of four pieces of 4- x 6-inch x 4-foot lumber nailed to one piece of 4- x 8-inch x 9-

foot lumber with two 40d nails through each 4- x 6-inch x 4-foot piece. Place the 4- x 8-inch x 9-foot piece

against the end of the lower module and toenail the lower ends of the 4- x 6-inch x 4-foot pieces to the railcar

deck with two 40d nails through each side of each piece.

Backup cleats, 4- x 4-inch x 4-foot. Place one against the end of each 4- x 6-inch x 4-foot piece (item K) and

nail to the railcar deck with five 30d nails through each.

Upper end brace. Consists of four pieces of 2- x 6-inch x 7-foot lumber nailed to one piece of 4- x 8-inch x 9-

foot lumber with two 40d nails through each 2- x 6-inch x 7-foot piece. Place the 4- x 8-inch x 9-foot piece

against the end of the top module and nail the lower ends of the 2- x 6-inch x 7-foot pieces to the backup

cleats (item L) with three 20d nails through each.

Wire rope, 3/8-inch. Locate as shown in figure 7-4. Form a loop through the railcar stake pocket (fig 7-11),

pass the wire rope around the end brace, and form a loop through the stake pocket on the opposite side of the

railcar. Position the wire rope in the notch of each end brace. Place a thimble (item P) underneath the wire

rope at each end of the end brace. The wire rope may be tensioned with an appropriate size come-along

mechanical hoist or equal tensioning device.

Clamps, 3/8-inch. Secure the wire-rope loops with three clamps spaced 21/4 inches apart, leaving a

minimum of 6 inches from ends of rope. Place one additional clamp to secure thimble (item P) and wire rope

together at stake pocket (fig 7-11).

Thimble, open-type, 3/8-inch. Place one at bottom of each stake pocket where wire rope passes through (fig

7-11). Attach thimble to wire rope with one clamp (item O). Place one thimble underneath the wire rope at

each end of the end braces.

Table 7-6. Application of Materials for Blocking and Tiedown ofLACV-30 Components Shown in Figures 7-7, 7-8, and 7-9

Item

No. required

Application

Brake wheel clearance. Minimum clearance required is 6 inches above, in back of, and on both sides of and

4 inches underneath wheel (fig 7-7)

Styrofoam beadboard, 4-inch x 4-x 8-foot sheets, or 4-inch x 2-x 8-foot sheets. Distribute beneath the

sectionalized components to protect the hinge and attachment points and to provide separation of the

components from the railcar deck. Position between stacked components to provide separation between

components. Arrange so that approximately 50 to 60 percent of all bottom surfaces rest on the styrofoam

beadboard.

7-10