Figure 3-16. Snubbing machine.

TM 38-400/NAVSUP PUB 572/AFMAN 23-210 MCO 4450.14/DLAM 4145.12

lag screw head projects beyond the outside face of the

snubbing block and with a wrench turn the lag screw into

the side of the skid until 1/2 inch penetration is obtained.

The bite of the screw tip into the side of the skid will

serve as a retarder to control lengthwise and upward

movement. The antiskid method is basically the same

except that a plate is inserted in lieu of a lag screw. The

method of arrangement for placing either the antiskid

plate or the lag screw snubbing device is shown by

figure 3-17. The maximum distance for locating the end

snubbing devices from ends of the skid should be

approximately 24 inches to 30 inches (fig 3-17). The

snubbing devices on each side of the skid should be

equal in number and located directly opposite. The

number of snubbing devices to be employed on each

side of skid will vary with the weights of the desired

amount of restriction of movement. Generally, the

number varies from two to five devices on each side of

the skid. After end devices are located, the additional

devices are spaced in between.

Figure 3-17. Location of snubbing devices.

(3) Application and use.

The snubbing

devices should be used on machinery (especially

legged-type), boats, and those commodities that should

be protected from sudden or severe shock.

(4) Several items cleated together. The use

of the snubbed load is recommended wherever

practicable.

c. Floating load. The floating load absorbs a great

amount of shock pressure as containers slide over the

floor of the car, thus ridding with the "punch." The

materials may or may not be palletized. However, the

pallet loads or containers are secured in a unit by

Figure 3-16. Snubbing machine.

binding with steel straps. Units may be placed in each

end of the car or as a single unit extending through the

(2) Application of snubbing devices.

doorway area. Space for floating may be at each end

applying the lag screw snubber, the lag screw is turned

wall and doorway, all in the doorway, or with a single

in, in a predrilled hole in the snubbing block, until the

unit at the end walls. There are variations of this load

screw tip is flush with the inside faces. of the block.

which are termed "Restricted" floating loads. (For

The snubbing block and the backup cleat are securely

additional details, see AAR pamphlets 14 and 21

nailed and spiked to the floor. Measure the amount the

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