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|  MIL-S-52124B(ME)
binding, or interference. After returning the screening
unit to level ground, measure the diagonals and parallels
for evidence of axle misalinement.
Tow over V-ditches not less than 36 inches wide and 18
(f)
inches deep. Negotiate the ditches both perpendicular
and at an angle of 45 degrees to the direction of travel.
Measure and record the deviation or off-tracking of the
(g)
semitrailer with respect to the dolly and to the prime
movers, when the semitrailer is towed straight ahead on
a paved surface.
Ford the semitrailer through a body of water not less
(h)
than 30 inches deep. While in the water turn Off the
lights.
Demonstrate brake system conformance to ICC regulations.
(i)
With the truck-tractor only, tow the semitrailer up to
(j)
30 mph and apply the brakes to produce a deceleration
Repeat this snubbing cycle for a total of 5 cycles and
make a panic stop on the 6th cycle.
(k) At 10 mph, cause the screening unit to go into "emergency",
simulating a breakaway from the dump truck and dolly-
semitrailer.
with TTMA recommended
(l) Test the brake system in accordance
practice RP-1-12.
During the above tests, lights shall be onrandvturn signals actuated
emo e the rims and wheels
on turns. Upon completion of the travel, cluding the rims and wheels.
in
and examine the entire screening unit,
Damage to or permanent deformation of any part eof dthe escreening unit,
vi enc of any weld
change in critical mounting point dimensions,
being defective, inability to complete any portion of the test, in-
compatibility with any towing vehicle, operating difficulty or non-
conformance to 3.13, 3.14 or 3.16 shall constitute failure of this
test.
4.6.2.3 Railroad and air transport. Sectionalize and reassemble
the screening unit. Nonconformance to 3.16.2, tests for sectionali-
3.16.3,
The
shall constitute failure of these tests.
zation and for lifting and tiedown attachments may be acomplished
specified in 4.6.2.4 and 4.6.2.5.
in conjunction with the tests
45
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