Table 1. Bill of Material and Instructions for Blocking and Restraining Truck, Tractor, 10-Ton, 6 X 6, M123, on Railroad Flatcars With Wooden Floors
Bill of Material
Lumber
Linear feet
No. required
2-in. X 4-in ..............................................
64
Wire, No, 8 gage, black, annealed......
300 ft (approx)
2-in. X 6-in ..............................................
18
Rope, steel wire, 1/2-in.-dia. (not required when 70 ft (approx)
6-in. X 8-in. .............................................
24
No. 8 gage wire is used exclusively.
Chips, 1/2-in.......................................
20 (when steel wire
Nails
No. required
rope is used)
12d (4-in.) ................................................
46
Thimbles, std, 1/2-in. (open-type) ......
4 (when steel wire
20d (4-in.) ................................................
88
rope is used)
40d (6-in.) ................................................
60
Waterproof paper or burlap.................
As required
Material Specifications
Lumber: Douglas-fir or comparable lumber with straight grain and free
Rope: 1/2-in., 6 X 9, IWRC steel cable, Fed Spec RR-W-410.
from material defects, Fed Spec MM-L-651.
Wire: No. 8 gage, annealed, black, Fed Spec QQ-W-461.
Nails: Common, cement-coated, Fed Spec FF-N-106.
Clips: U-bolt, Crosby, heavy-duty, or equal.
Item
No. of pieces
Application
Item
No. of pieces
Application
A
........................ Brake wheel clearance. Six-inch clearance required
E
4 each unit...........Eight strands of No. 8 gage, black, annealed wire.
in back of, on both sides of, and above brake wheel,
Attach to the shackles located at each end of the
with 4 inches required below the wheel.
unit and to stake pockets on the same side of the
B
12 ....................
Block (sketch 1, fig. 6), 6-in. X 8-in X 24-in. Locate
car. Metal fillers sufficient to provide a suitable
45portion of block against front and rear of front
radius must be used to protect the wire at stake
wheels, in front of inside and outside intermediate
pockets and applied so as to prevent dislodgement.
wheels, and in back of inside and outside rear
Twist wires taut with a rod, bolt, or suitable length
wheels. Nail heel of the block to the car floor with
of 2-in. X 2-in. lumber and secure to preclude un-
three 40d nails, and toenail that portion of the
winding. (sketch 3, fig. 6). Substitute, if desired,
block under the tire to the car floor with two 40d
1/2-in. IWRC steel cable, in a complete loop, and
nails before items C and D are applied.
secure with four 1/2-in. cable clips. Thimble must
C
1 each item D ... Suitable material, such as waterproof paper or bur-
be used at the stake pocket to protect the cable and
lap, etc. Locate bottom portion under item D, the
secured to the cable with one cable clip (sketch 4,
top portion to extend 2 inches above item D.
D
6...................... Each to consist of one piece of 2-in. X 6-in. X 36-in.
F
12 ........................Each to consist of six strands of No. 8 gage, black,
lumber and three pieces of 2-in. X 4-in. X 36-in.
annealed wire. Pass through the spokes or holes in
lumber (sketch 2, fig. 6). Nail one edge of the
the front and rear wheels and through the car
2-in. X 6-in. X 36-in. piece to the bottom 2-in. X
stake pockets (sketch 1, fig. 7). Wires should be
4-in. X 36-in. piece with five 12d nails. Then place
attached to-the wheel above the midpoint and the
against the tire and nail to the car floor through
two twisted wire tiedowns installed so they form
the 2-in. X 4-in. X 36-in. piece with four 20d nails.
an "X" across the face of the wheel. Twist taut
Nail the other two 2-in. X 4-in. X 36-in. pieces to
with a rod, bolt, or suitable length of 2-in. X 2-in.
the one below in the same manner.
lumber, and secure to preclude unwinding.
General Notes
1. Load as shown is based on a flatcar 9 feet 2 inches wide (platform). Cars with wider platforms may be used.
2. All handbrakes will be applied with the hand levers wired or blocked. Gearshift levers for automatic or conventional transmissions must be placed
and wire-tied in neutral position. Clutch pedal shall be secured in depressed position by wiring to floorboard plate, or by wiring a wood block to the pedal
shaft beneath the floorboard.
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