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- appointment, the ratio of the size of the profile, the type of
tread pattern, the way of sealing.
Explain how to meet the tire and wheel design requirements:
- convenient installation and dismantling;
- softening shock loads that arise when driving a car on
uneven roads;
- good adhesion to the road and low pressure on the soil;
- self-cleaning of soil treaders;
- absence of static and dynamic imbalance;
- Increased traffic safety.
It is necessary to pay attention to balancing of wheels. Check
out tire marking. Find out the need for steering wheel mounting
angles.

3 Directions for preparation for the lesson

To study:
- purpose, structure and operation of the elements of the
running gear of the car;
- purpose, structure of bodies and cabins;
- frame structures of trucks and cars;
- the design of bodies of cars and buses;
- design of suspensions of vehicles;
- design of shock absorbers;
- the design of the wheels.

4 The order of work execution

Describe characteristics of the components of the running
gear of vehicles:
- types of frame or body;
- suspension of front wheels;
- suspension brackets for rear wheels;
- shock absorbers;
- the rim of the wheel, the size (marking) and the number of
tires on the vehicle,
- internal air pressure in the front and rear wheels;
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