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 it is necessary to store the semitrailers outdoors, select the
storage
site
in
accordance
with
AR
700-2300-1
and
protect
the semitrailers against the elements as prescribed in TB ORD
379.
116. Loading the Semitrailers on Railroad Flatcars
For method of loading and general loading rules pertaining
to rail shipment of ordnance vehicles, see TM 9-1005 and
TB
9-OSSC-G.
W a r n i n g : The
height
and
width
of
vehicles,
when
prepared
for
rail
transportation,
must
not
exceed
the
limitations
indi-
cated
by
the
loading
table
in
TB
9-OSSC-G.
Whenever
pos-
sible, local transportation officers will be consulted about the
limitations of the particular railroad lines to be used for the
movement in order to avoid delays, danger, or damage to equip-
ment.
117. Blocking the Semitrailers on Railroad Flatcars
a. General. All blocking instructions specified are minimum
and are in accordance with Pamphlet No. MD-7, "Rules Gov-
erning the Loading of Department of Defense Materiel on Open
Addi-
Top Cars" of the Association of American Railroads.
tional
blocking
may
be
added
as
required,
at
the
discretion
of the officer in charge. Semitrailers illustrated in figure are
double-loaded on one flatcar in order to conserve space. Block-
ing instructions are the same for one or two trailers, unless
indicated otherwise.
Separate
semitrailers
by
suitable
dunnage
(fig. 72),
Note. Any
loading
instructions,
regardless
of
source,
which
to
be
in
conflict
with
this
publication
or
existing
loading
rules
of
the
carriers,
must
be
submitted
for
approval
to
the
Chief
of
Ordnance,
Headquarters
of
the
A r m yp W a s h i n g t o n
25,
D.
C.
b. Brake Wheel Clearance A. Load the semitrailers on flat-
cars, with a minimum clearance of at least 4 inches below
and 6
inches above, behind, and to each side of the brake
wheel.
Brake wheel clearance may be increased provided it
does not upset the balanced location of the load.
c. Chock Blocks B (6 x 8 x 24, six required). P o s i t i o n c h o c k
blocks B as shown in figure 72. Place blocks against a 3 x 10
support of suitable length and nail together with forty penny
d.
Support
C
(3
x
10,
length
to
suit). P o s i t i o n
plank
C
against trailer-bed and nail checks B to car floor with forty-
Toenail sides of chock blocks with fortypenny
penny nails.
TAGO 1321B
167
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