Problems that may affect tire

A. General problems that may affect tire and rim safety:

1. Improper operator practice
2. Overloading
3. Excessive haul speed
4. Improper tire and rim maintenance
5. Overinflation of tires
6. Underinflation of tires
7. Improper tire repair
8. Cutting of tread by sharp/hard objects
9. Improper tire selection

B. Haul road problems that may affect tire and rim safety:

1. Tire ply separation could occur if reduced speed limits are not in effect on curved
or rugged terrain.
2. Internal friction could occur at high speeds on rough terrain causing heat wear on
tires.
3. Poorly drained roads can cause depressions in roadsÅcutting, bruising or bursting
tires and denting or cracking rims.
4. Poorly maintained roads, especially in wet weather, can cause slippage or
spinning which in turn cuts and rapidly wears a tire.
5. On excessively rocky roads, tires and rims can become damaged unless tire
protection chains are used.

C. Vehicle operator problems that may affect tire and rim safety:

1. Driving at excessive speeds on poor road conditions
2. Spins and slippage
3. Fast stops, fast starts, fast turns and excessive loads
4. Tires allowed to rub against the banks of haul roads or guide rails
5. Excessive braking which could cause deterioration of tire beads and inner liner
D. Repair and maintenance problems that may affect tire and rim safety:
1. Tires allowed to rub against part of the vehicle
2. Underinflation of tires
3. Overinflating tires beyond recommended inflation chart
4. Stones allowed to remain caught or wedged between dual tires
5. New tires being mounted beside worn tires
6. Mismatching of tires
7. Promoting wear of tires by parking in gasoline or oil puddles
8. Uneven brakes, poorly aligned wheels, wheels that are wobbly or bent, or bent
Axles