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| MIL-T-45382A
3.5.7 Fording. Each vehicle shall ford hard-
interference between the trailer and the towing
vehicle.
bottomed, salt or fresh water crossing of depths
great enough to completely submerge the chassis,
3.5.4 Braking ability.
and shall withstand such immersion for periods up
to 15 minutes duration without damage to the
3.5.4.1 Service brakes. The combined service
vehicle or its components. In fording the trailer,
brakes of the trailer and towing vehicle shall
low bed, M529, an appropriate approved fording
control, decelerate, and stop the vehicle
kit for the engine generator set shall be used.
combination within 30 feet from a speed of
20 mph on dry, hard, level, smooth surface roads
3.5.8 Extreme climatic operation. Each vehicle
when loaded with highway payload.
shall operate under any condition of inclement
weather at an ambient temperatures ranging from
3.5.4.1.1 Service brake system. The service
minus 65 F. up to plus 115 F. and shall
brake system of the Trailer, Low Bed, M529 shall,
withstand, at the extreme conditions of weather
with the air reservoir charged with air to
and temperatures specified, protracted storage
100 pounds per square inch (psi) plus or minus
periods without indication of deterioration.
5 psi and the air supply line disconnected, fulfill
the following requirements:
3.5.9 Reliability. Each vehicle shall be capable
(a) Brakes on all wheels of the trailer shall be
of operating at least 2,560 miles in a military
applied.
environment without failure due to workmanship
(b) No hydraulic fluid leakage shall be
or materials; and when subjected to military
evident.
operating conditions specified herein (see 3.5.1
(c) The rate of drop in air pressure shall be
through 3.5.8), shall exhibit flexural stiffness and
not less than one-half (1/2) psi per minute
torsional rigidity to withstand bending and
or more than 5 psi per minute with the
twisting without evidence of failure.
brakes fully applied or fully released.
3.6 Treatment and painting. Treatment and
3.5.4.1.2 Automatic actuation. All vehicles
painting shall be in accordance with Standard
shall be equipped with an automatically actuated
MIL-STD-193. Colors shall conform to
device to apply the vehicle brakes upon breakaway
appropriate color chips in Standard Fed. Std. No.
from the towing vehicle, and to maintain
595, and shall be as specified by the procuring
application of brakes for not less than 15 minutes.
activity (see 6.2).
3.5.4.2 Parking brake. The parking (hand)
3.7 Marking. Registration and other markings
brakes shall hold the vehicle on a dry, hard-
shall be in accordance with Standard
surfaced 15 percent grade when uncoupled from
MIL-STD-642.
towing vehicle and headed up or down incline.
3.5.5 Bed-leveling system. On the trailer low
3.8 Name, shipping, and service data plates.
bed M529 the hand operated hydraulic system
Data plates shall be photographic aluminum plate
shall compress the entire suspension system so
(sensitized). The plates shall have the
that the top of the "T" track at all points on ready
photosensitive silver compounds inbedded within
mount rack measures 37 inches, plus or minus
the oxide layer; and after photographic processing
1 inch, above the ground while resting on
the letter, numbers, and all other characters shall
be sealed in the oxide by suitable chemical
level surface.
treatment of the layer. The plates shall have a
3.5.6 Bumper. On the trailer low bed M529 the
black background. All caution and warning plates
bumper cylinder, shall take up the weight of the
shall have red lettering with a black background.
bumper in a smooth and constant movement
The size of plate, type and size of lettering, and the
without binding or dragging.
4
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