4.1.25. Shift of wheels
At cars with forward the drive wear of a protector is caused by bigger load of forward tires earlier, than at tires of a back axis.
For equalizing of service life of all 4 tires of the car it is recommended to rearrange forward wheels with tires on a back axis and vice versa.
At tires with the directed protector you watch that they were not turned.
The longer the tire is operated on a certain wheel of the car, the more it is leveled therefore shift of wheels is recommended to be carried out through short intervals of a run, for example, each 5000 km.
Diagonal shift is possible only at tires without the directed protector. This type of shift is especially justified at wear of a protector in the form of a path of a sawtooth form
If wear of a protector in the form of a path of a sawtooth form progresses and the protector is worn-out more than for 50%, this type of shift will give only small increase in a run and is practically not justified. Elasticity of blocks of a protector worsens and sawtooth wear ceases to progress.