Table 51. Bill of Materials for Blocking and Tiedown of Dispenser
(Figs 51 and 52)
Douglas-fir, or comparable, straight-grain, free
from material defects; Fed Spec MM-L-751H:
8 linear ft
6- x 8-in.
12 linear ft
2- x 6-in.
24 linear ft
2- x 4-in.
Common, steel; flathead; bright or cement-coated;
Fed Spec FFN-105B:
6 x 19 IWRC; improved plow steel; preformed, regu-
lar-lay; table X, Fed Spec RRW-410C: 5/8-inch
Wire rope, U-bolt clips, saddled, single-grip, steel,
Crosby heavy-duty, or equal: Fed Spec FF-C-4500:
Standard, open-type; `A-inch
Waterproof paper, burlap, or other suitable mate-
Table 52. Application of Materials for Blocking and Tiedownof Dispenser on Highway Carrier (Fig 5-1 and 5-2)
Chock Block (detail 1, fig 52). Place 45°
Tiedowns, crossed, (detail 3, fig 5-2).
end against each wheel as shown in
Each to consist of one piece 5/8-inch,
figure 5-1. Toenail heel of block (33°
6 x 19 IWRC wire rope, length as re-
end near bottom edge) to trailer/truck
quired (approximately 20 ft). Form a
floor with one 20d nail in each block.
complete loop between tiedown provi-
Drive two 40d nails through heel of
sion and appropriate stake pocket on
each block, perpendicular to floor. Toe-
opposite side of trailer. The angle be-
nail each side of each block to floor
tween the tiedowns and the trailer
with two 30d nails.
deck should be as close to 45 degrees
Cushioning material (detail 2, fig 5-2).
as possible. The wire rope ends should
Locate so that material is under item
overlap at least 18 inches.
C and extends 2 inches above item C,
Thimbles. Place one under wire rope on
between the tire and item C.
each place where wire rope contacts
Side blocking (detail 2, fig 52). Each to
bottom of stake pocket and tiedown
consist of one piece of 2- x 6- x 72-in.
provision. Secure thimble to wire rope
lumber and two pieces of 2- x 4- x 72-
with one U-bolt clip (detail 3, fig 5-2).
in. lumber. Nail 2- x 6- x 72-in. piece to
Clips. Place four on each item D at over-
edge of lower 2- x 4- x 72-in. piece with
lap area. Space clips 3žinches apart
ten 20d nails. Place 2- x 6- x 72-in. piece
with a minimum of 6 inches from ends
against cushioning material and tire
of wire rope (detail 3, fig 52). Place one
and nail to floor, in a staggered pat-
on each item E as indicated above.
tern, through 2- x 4- x 72-in. piece with
Brace, Use 6- x 8-inch lumber by length-
ten 20d nails. Nail upper 2- x 4- x 72-
to-suit (approximately 24 inches). Force
in. piece to lower piece with ten 30d
fit between truck or trailer bed and
reach tube as shown in figure 5-1. Toe-
nail to truck or trailer bed with one 20d
nail in each side.