Sec. 6 -Fig. 66 (Rev.-11-1978)
(Drawing Redrawn 11-1978)
MOBILE, LIGHT WEIGHT SEMI-TRAILER, WITH TRACTOR-FLAT CARS
No. of Pcs.
Brake wheel clearance. See Fig. 2.
2 ea. wheel.
Blocks, pattern 16. Locate 45 degree portion of block against front and rear of wheels. Secure
heel of block to floor with three 40-D nails and toe-nail that portion under tire to floor with
two 40-D nails before Items "C" and "D" are applied.
1 ea. outside
Suitable material such as waterproof paper or burlap. Locate bottom portion under Items
"D" and between tires and Items "D" so as to extend 2 inches above Items "D".
1 ea. outside
Side blocking. Each to consist of one piece of 2 in. x 6 in. x 36 in. lumber and two pieces of
wheel. 2 in. x 4 in. x 36 in. lumber. Nail 2 in. x 6 in. piece to edge of bottom 2 in. x 4 in. piece
with five 12-D nails. Place against tire and nail to car floor with five 20-D nails in a staggered
pattern. Nail second 2 in. x 4 in. piece through first piece to car floor with five 20-D nails
in a like manner.
3/8 in., 6 x 19, IWRC, wire rope, doubled. Attach to front and rear spring shackles of each set
of wheels and to stake pockets. Secure wire rope with four 3/8 inch cable clips. 3/8 inch thimbles
must be used at stake pockets and spring shackles if necessary to protect wire rope. Secure
thimbles to wire rope with one 3/8 inch cable clip.
3/8 in., 6 x 19, IWRC, wire rope, doubled. Attach to pulling hook on each side of frame near
front of tractor and to stake pocket. Secure wire rope with four 3/8 in. cable clips. 3/8 in.
thimbles must be used at stake pockets and at vehicle tiedown points if necessary to protect
wire rope. Secure thimbles to wire rope with one 3/8 in. cable clip.
3/8 in., 6 x 19, IWRC, wire rope, single strand. Attach to formed 1/3 in. bar with eye at ends,
passed over top of fifth wheel plate and to stake pockets. Secure wire rope with three 3/8 in.
cable clips at each end. Apply thimbles as outlined in Items F and G above.
See General Rules 1, 2, 4, 5, 7, 9, 14, 15, 19-A, 19-B, and 19-C for further details.