PASSABLENESS OF THE CAR

Unscrewing and screwing up of wheels without a key can cause pressure in brake drums. Will go more correctly by the car until tyres of forward wheels will not reach appreciable deterioration. At stronger deterioration of forward wheels it is recommended to change their places with back, without changing a direction of rotation of wheels. Thus, it is possible to achieve almost identical service life of all tyres. To change only one tyre it is not recommended, it is better to change them in pairs. Less worn out tyres always establish in front.
Balancing of wheels.
Wheels through 15 000-20 000 km of run or after repair of tyres balance. Balancing essentially influences durability of some elements of the car at its movement on high speed. At infringement of balancing the car starts to vibrate and jump up; on high speeds the wheel in a certain range starts to shiver; additional dynamic loadings on bearings of wheels, details of a suspension bracket of a steering are created, their palpation is caused, corners of installation of operated wheels change, non-uniformity of wear process of a protector at the expense of it and deterioration of coupling with road amplifies.
The reason of occurrence of a disbalance is unequal distribution of a material in the tyre, a rim, a nave. The disbalance which results from curvature of a disk, is swept up even on low speeds.
To check up, whether tyre balancing is necessary, it is necessary to hang out a wheel so that it freely rotated, strongly to untwist and allow it to stop most. After a stop to make a mark a chalk in the bottom point of a tyre cover. It is necessary to repeat this operation of 10 times. If cretaceous marks are scattered on all tyre, balancing in norm. If marks are grouped in one place, the wheel needs balancing.

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