Check Fire Division Symbols and DOT Placards
Now that you are familiar with fire division symbols and DOT placards, you are ready to look over the actual
vehicle and its load. The manifest identifies the vehicle load (refer to Figure 1-8 on Page 1-13) as propelling
charges without projectiles. Look at TM 9-1300-206, Table 5-15 (Figure 1-12, Page 1-18). It tells you that
propelling charges are in Class 1, Division 3 (Class 1.3). Items in this division require that two Fire Division 3
symbols be displayed on the vehicle while it is being loaded. Remember, if the shipment is leaving the
installation, the Fire Division 3 symbols must be replaced with DOT placards as soon as loading is complete.
Once the loaded vehicle is ready to leave the post, you must ensure that fire division symbols have been removed
and replaced with the correct DOT placard for the hazard involved and that four of these placards are displayed.
The "EXPLOSIVES A" DOT placard is equivalent to Fire Divisions 1 and 2 symbols. The "EXPLOSIVES B" DOT
placard is equivalent to the Fire Division 3 symbol. The "DANGEROUS" DOT placard is equivalent to the Fire
Division 4 symbol. Since the load you are checking is in Fire Division 3, the Fire Division 3 symbols will be
replaced with "EXPLOSIVES B" DOT placards once the vehicle is loaded.
The compatibility of ammunition being transported is controlled by DOT. As you know, some types of explosives
cannot be shipped together. The manifest (refer to Figure 1-8 on Page 1-13) lists each type of item to be loaded.
Compare this list with the compatibility tables found in BOE 6000 to determine if the load is compatible. See
Figure 1-13, Page 1-19. Assume that there are two or more types of items loaded on the vehicle (for example,
blasting caps and propellant explosives). An X at an intersection of horizontal and vertical columns shows items
that cannot be loaded together. The X in column 3 shows that Class B propellant charges cannot be loaded or
stored with any initiating explosives.
Check Blocking and Bracing
When ammunition or explosives are loaded for shipment, the load must be blocked and braced in order to prevent
movement during transport. Without proper blocking and bracing, the load can shift thus damaging the
ammunition or explosives. The load may shift to one side enough to overbalance the trailer. In order to evaluate
blocking and bracing, you will need the outloading drawing for the particular load. To determine the drawing to
use, look first at the manifest (refer to Figure 1-8 on Page 1-13) to get the correct name of the item(s) being
shipped. Using the shipping name, refer to the extract of AMC Drawing 19-48-75-5 in the appendix at the back of
this subcourse. You see that ammunition over 125mm is covered in Chapter 1 starting on Page 1-8. Page 1-11
of the drawing lists the load by Index Number < 3 >Listed under Index Number < 3>, you see outloading drawing
19-48-4042C/2-11PM1000 listed for van trailer. Look at the extract of drawing 19-48-4042C/2-11PM1000 in the
appendix. On Page 3, you see several pallet units depicted. To determine which configuration to use, you need
to know the number of units and the method of packing. The manifest shows that 30 pallets were loaded. Look
at an individual pallet and compare it with the drawings on Page 3 of the drawing to determine the method of
packing. In this trailer, the metal containers are stacked four high and five wide, with two groups per pallet
(4x5x2=40), flat dunnage, decreased height. The drawing shown in the upper-right-hand corner of Page 3 of the
drawing is the correct one to use for this portion of the lesson.
On the other hand, if the containers had been stacked five high, the load would have been the basic height. If the
boards under the straps had been shaped (routed) to fit the containers, the load would be a routed dunnage unit.
Therefore, for a basic height, routed dunnage unit, you would use the drawing shown in the lower-left-hand corner
of Page 3.