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— rotate the tires, if necessary (Fig. 9.10). The grounds for tires rotation
may serve the necessity to get even wear of all tires, spare one including, as
well as to provide proper selection of the tires for each axle. The tires on an
axle should be of the same tread wear and more reliable tires should be in
stalled on the front axle of the vehicle.
Fig. 9.10.
Tire Rotation Diagram
Maximum permissible rate of tread wear corresponds to residual depth of
the tread grooves equal to 1.6 mm which is determined by measurement or by
tread wear indicators. These indicators of 1.6 mm high will appear as wide bands
incorporated in the tread pattern and marked on the tire sidewalls by TWI
marks.
9.11. CHANGING A WHEEL
9.11.1. Wheel replacement by means of mechanical jack (GAZ3302,
33023).
Wheel replacement should be carried out in the following sequence:
— apply the handbrake;
— place chocks at the front and rear of the wheel diagonally opposite the
one to be removed;
— slacken six nuts of the wheel to be removed;
— place the jack (Fig. 9.11) under front axle girder or rear axle next to the
wheel in question. Rotate the jack handle to lift the vehicle so that the wheel
Fig. 9.11.
Vehicle Front and Rear Wheel Lifting
