1. Tyres should be fixed on corresponding rims of the same model, requirements and size.
2. The same axle should be assembled with tyres of the same Specification, brands, size, ply rating, atmospheric pressure and patterns.
3. All tyres of vehicles should be replaced when replacing with new ones. Otherwise should be fixed on the outer side of the front or rear axle.
4. When simultaneously fitting the two tyres of the rear axle, the rotation marks of tyres should point to the forward drive direction.
5. Tyres should be inflated to standard internal pressure. But on roads of 4% higher camber, coaches can have 0.2-0.3kgf/cm2 lower than standard internal pressure in front and rear inside tyres.
6. The load if tyres is subject to the max load stipulated for single tyre. No overload is allowed. And the load should be of tyre.
7. When changing position, should be changed simultaneously. Be sure not to change the original drive direction of tyres.
8. When binding tyre chains, two sides should be bound. After passing through slippery road , the chains should be remove. Too tight or too loose chains may damage the tyre side and the suiface of tyre.
9. Regularly check the tyre. When rip or hole are found, they should be immediately mended in case the damage will be expanded
10. The external tyre should be fixed on standard rims. And keep the rim edge(or the Grommet) in good condition. Regularly remove rust and add anti rust oil.