EQUIPMENT CHARACTERISTICS, CAPABILITIES, AND FEATURES (CONT)
e. Fully loaded, the tractor/semitrailer can ford water to a maximum depth of 28 inches (71 cm), including wave
height, without using additional water fording equipment.
f. Towing vehicles (tractors) provide electrical power and air brake (pneumatic) pressure to the semitrailer through
standard intervehicular connections for brake lights, turn signals, blackout lights, clearance lights, and service and
g. The semitrailer is automatically steered in response to turning of the tractor. When in tow, semitrailer can
negotiate a 90-degree turn in one continuous motion, at an intersection from one 30-foot (9m) wide road to
another 30-foot (9m) wide road.
h. The auxiliary power unit (APU) provides power for the entire hydraulic system and is used for independent
adjustments of the suspension, steering, and gooseneck.
i. The bogies (suspension system, axles, brakes, and wheels) simultaneously move up and down and can be
individually isolated, allowing access for tire changes or trailer movement with a disabled bogie.
The terms used throughout this manual to describe areas and parts of the
semitrailer, and their location relative to each other, are referenced as follows:
When a person stands at the loading ramp end (rear) of the semitrailer looking
toward the gooseneck on the forward (front) end of the semitrailer, the side on the
left is designated as the "streetside" and the side on the right is the "curbside".
Locations of areas and items on or under the semitrailer platform will be identified
as inboard (toward or nearest the center of the platform) or outboard (farthest from
the center). For example, the hydraulic operating controls and gages are located
on the curbside of the semitrailer under the front corner of the platform. The
crowbar is mounted at the rear of the semitrailer under the loading ramps.