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|  MIL-T-46705E
* 3.2.7 Lubrication. Lubrication means shall be provided for all parts of the trailer normally
requiring lubrication. Where the use of high lubricating pressure will damage grease seals or
other parts, fittings with pressure release shall be used.
* 3.2.8 Safety. All equipment or exposed portions of the equipment which are subject to
extreme temperatures and inclement weather and all rotating or reciprocating parts which are of
such a nature or so located as to become a hazard to operating personnel shall be insulated, fully
enclosed, or properly guarded.
3.3 Performance. The trailer shall evidence no part failure, deformation, permanent set or
interference between parts when towed, both empty and when loaded as specified in 3.4:
(a) At speeds as great as 32 kilometers per hour (km/h) (20 miles per hour (mph)) over
unimproved roads and reasonably hard uneven terrain;
(b) At speeds as great as 97 km/h (60 mph) over improved roads; and
(c) At speeds as great as 16 km/h (10 mph) on 10 percent side slopes on unimproved roads
and reasonably hard uneven terrain.
3.3.1 Turning ability. Trailers shall be capable of performing the following operations:
(a) Trailer front undercarriage and tow hitch shall be capable of assuming a cramping angle
of 90 degrees with the longitudinal centerline of the trailer without upsetting of the
trailer and without interference between the front undercarriage and the trailer.
(b) With the trailer undercarriage (tow hitch) in line with the remainder of the trailer, the
trailer shall be capable of moving through an angle of not less than 55 degrees with the
coupled towing vehicle without upsetting and without interference between the trailer
and the towing vehicle. This angle shall be measured at the lunette and shall be the angle
between the longitudinal axis of the trailer and the longitudinal axis of the towing
vehicle. The ability of the trailer to meet the requirement shall be demonstrated actually
or graphically with a 2440 mm (96 inch) wide towing vehicle having the center of its
pintle located at the extreme rear of the towing vehicle. Interference will be considered
to exist if, with trailer at the 55 degree angle specified above, any portion of the trailer
less than 1220 mm (48 inches) from the center of the lunette is forward of the pintle.
* 3.3.2 Tracking ability. The trailer shall not exceed the allowance for tracking deviation
specified in Federal Motor Carrier Safety Regulation 393.70(a). Additionally, each of the fully
equipped and loaded trailers shall be capable of being towed, as a train of 6 trailers, at speeds as
great as 24 km/h (15 mph) over improved surfaces.
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