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- convenience of entering and leaving of passengers, loading
and unloading of cargo;
- thermal insulation, protection against gassing, exhaust gases,
gas vapors, precipitation;
- protection against vibration and noise.
It is necessary to study the classification of bodies of cars; the
purpose of the suspension and the functions of its individual
elements, guide devices and determine the type of suspension on
this feature.
To find out the purpose and work of shock absorbers,
stabilizers of transverse stability. Explore the classification of the
suspension and determine the type of suspension in accordance
with the adopted classification.
Evaluate the suspension in terms of requirements that apply to
it. To work out a scheme of work of dependent suspensions of
two-axle and three-axle cars and independent suspensions of cars;
Find out how the transfer of pushing, twisting and other efforts
takes place, especially in independent suspensions.
Studying spring springs, pay attention to the profile of the
spring sheets and the ways of fixing their ends, the appointment of
additional springs. To understand the scheme of work and to
clarify the appointment of individual elements in the systems of
pneumatic and hydropneumatic suspension.
When studying all types of suspensions, select the places and
methods of adjustment, the location of lubrication, the type of
lubrication and its periodicity.
The wheels consist of three parts: a rim, a connecting part and
a hub.
Wheels are classified according to the purpose of the rim type
and the type of connecting parts.
Need to know what the numbers and letters mean in marking
the rims, from which material and by what methods make discs
and rims, specify their types.
Pay attention to the features of the design of the rims used in
the car, which have tubeless tires and centralized air supply in the
bus.
Tires are classified according to the following features:
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