Figure 7-2. Method of blocking the 1 / 4-ton. 2-wheel Cargo Trailer M100 (double loading) for rail shipment.
7-4. Blocking the -Ton, 2-Wheel Trailer
be similarly blocked for rail shipment. Any
loading methods or instructions developed
M100 or M367 for Rail Shipment
a. General. All blocking instructions specified
by any source which appear in conflict with
this publication or existing loading rules of
herein are minimum and in accordance witll the
the carriers, must be submitted for ap-
A s s o c i a t i o n of American Railroads "Rules
proval to the proper authorities.
Governing the Loading of Department of Defense
Materiel o n O p e n - T o p C a r . " A d d i t i o n a l
b. Brake Wheel Clearance "A". Load trailers on
Blocking may b e added as required at the
flatcars with a minimum clearance of at least 4
discretion of the officer in charge. Double-headed
inches below and 6 inches above, behind, and to
nails may be used if available, except in the lower
each side of the brake wheel (fig. 7-1 and 7-2).
piece of two-piece cleats. All item reference letters
Increase clearance as much as is consistent with
given below refer to the details and locations as
proper location of load.
c. Chock Blocks "B" (6 x 8 x 24 Inches). Locate
trailer may be single loaded with the leg retracted as
the 45-degree face of blocks against the front and
shown in figure 7-1 or double loaded with the lower
rear of each wheel. Blocks are to be positioned in
trailer positioned with the leg down as shown in
such a manner as to allow flush application of
wheel side cleats "D" (e below) when nailed to
chock blocks. Nail heel of blocks to car floor with
three forty penny nails each.
model M100, however, model M100 may