29
increases wear of tyres. Besides, sharply and heavy braking could
provoke skiding of the automobile.
When the automobile is to be operated on off-the-road
(sand, mud, snow etc.), slippery roads, steep up-grades (more
than 15 °Ñ) and on other complicated sections of roads, do not
overload the engine. In this case, engage the front axle, and on
very complicated sections of roads, shift also the transfer box to
a low range. Before engaging the front axle, engage the front
wheels. Engage the front axle in motion, and shift the transfer
box to low range only after a complete stop of the automobile.
Overcoming Steep Up-Grades and Down-Grades.
When driving
on roads with steep up-grades and down-grades, a driver should
be very intent. Determine preliminarily an up-hill gradient and
shift in a required gear which would ensure a required traction
force of wheels. When overcoming steep up-grades, shift the
transfer box to a low range and the gearbox in the first gear.
Overcome up-grades without stopping and turnings, as far as
possible. Overcome short up-grades provided with a convenient
access and smooth riding surface by speeding up without
engaging the transfer box to a low range and by shifting the
gearbox in the second or third gears depending on an up-hill
gradient. If for some reason, it is impossible to overcome an up-
grade, take all precautions and descend slowly by shifting in the
reverse gear. Descend little by little, do not speed up the
automobile and do not disengage the clutch. When overcoming
steep down-grades, take measures to ensure the safety of
descending. When overcoming a long down-grade (more than
50 m), determine preliminarily its steepness, shift the gearbox in
a required gear and engage the transfer box to a required range.
Overcome such down-grades by engine braking.
Overcoming Gutters, Roadside Cuvettes and Ditches.
Over-
come gutters, roadside cuvettes and ditches at a low speed with
the front axle engaged in the direction perpendicular to a down-
grade with regard to dimensions of the automobile defining its
cross-country capability. Do not overcome an obstacle with a
rush, if a frontal impact against wheels could be occured .
Moving Along Muddy Country Roads and Graded Clay and
Gumbo Roads.
When moving along clay and gumbo roads after
pouring rain, the automobile could slip off the road. Be careful
when choosing a direction of motion. Choose relatively level
Содержание UAZ-31512
Страница 8: ...8 Fig 3 Overall Dimensions of Automobile ÓÀÇ 3153 Dimensions are given for reference ...
Страница 99: ...99 Fig 88 Lubrication and Tank Chart of Automobile ...
Страница 110: ...FORNOTES ...