Tyres 4U Industrial Tyre Tips

When selecting a tyre, look for the one most suitable for the job. Tyre size and P.R should be determined after weighing the loads on each wheel according to accepted procedures or after calculating the loads. Generally, it is recommended to choose the tyre that carries the load with the lowest inflation pressure. After selecting the tyres and mounting them do not overload the vehicle, for example, by adding sideboards.

LOAD AND INFLATION PRESSURE
In order to obtain the best results from your tyres, maintain the correct inflation pressure at all times. Bear in mind that it takes the tyre up to 24 hours to cool after completing a job. For this reason it is recommended that you check and adjust the inflation pressure after long breaks or weekends. In addition, tyre pressure should be checked every month and occasionally during the work day, taking into account that the heat build-up raises the pressure by up to 15 psi. If, however, the inflation pressure exceeds the additional 15 psi, reduce the load or the driving speed.

• Never lower inflation pressure by bleeding, since it increases the heat build-up.
• Cover all valves with caps to prevent the penetration of dirt.
• Load and inflation pressures should be determined according to length of the haul. Maintenance of the haul road can substantially increase the tyres life.
• It is permitted to use regular skid depth tyres without dry ballast in transit, on the condition that the following rules are carefully observed:

The vehicle must be unloaded during transit.
Maximum highway speed must be limited to 50km/h, for wide based tyres to 32km/h.
Proper inflation pressure must be checked and maintained according to manufactures instructions.
30 minute intervals should be observed for cooling off, every 80 driving kilometres or after 2 hours of sustained operation, whichever comes first.
A minimum one-hour midday stop should be observed during full day operation.

PROPER DRIVING
To get the maximum from your off-the-road tyre, it is essential to adopt proper driving habits. Avoid chuck holes, tyre damaging hazards and refrain from the strong spinning, sudden starting or breaking maneuvers, high speed cornering, locking one wheel for sharp turns etc. All of these may harm your tyres and shorten their service life.

MOUNTING AND DISMOUNTING
•Always practice correct mounting and dismounting procedures, and make sure you have taken all safety precautions. Remember, many severe accidents are the result of carelessness in mounting or dismounting.
• Before mounting the tyres on the vehicle, check the wheels and rims and make sure the vehicle is in perfect mechanical condition. Upon completion of the mounting process, check the clearance between the wheel and the vehicle all around. For duals, install a permanent rock ejector to prevent damage from wedged rocks.
• Duals should not vary in their overall diametre more than 1/4 for tyres of up to 8.25" cross section, and 1/2 for tyres with cross section of 9.00" and above. If this is not adhered to, the larger the tyre is likely to fail prematurely. Never try to make up for larger differences by changing the inflation pressure.

STORAGE
Do not store tyres for more than a few months. Stores should be dark and cool, free of dirt and oils and as far as possible form running electric engines.