GETTING THE RIGHT TYRE

• It is suggested that proper selection of tyre for the vehicle is very important to ensure optimum and safe operation.
• Some of the critical factors to be considered for correct tyre selection are:
  • Vehicle type & use (passenger or goods)
  • Load carried and type of load (Load Index/PR)
  • Speed and sustained operations (Speed Symbol)
  • Type /Rim combination (Tyre Size and Rim Profile)
  • Operating conditions (Type of Roads/Terrain)
  • Tyre pattern design requirements based on the application

TYRE MOUNTING AND DISMOUNTING

Mounting

• Ensure that the rim is correct for the tyre size is fitted
• Clean the wheel thoroughly to remove all contamination
• Ensure that the wheel is not cracked, deformed, damaged or bent.
• Lubricate the tyre beads with an approved tyre lubricant.
• With the tyre on the rim start the inflation making sure that tyre beads are seating correctly on the rim seat.
• For safety reasons always use a new tube when fitting with a new tube type tyres.
• On tubeless tyres must be fitted on air tight rims.

Dismounting

• Before starting to remove, ensure that the tyre is completely deflated.
• Ensure that there is no danger of tyre bursting due to damage, exposed plies etc.

Tyre Safety Warning

TREAD WEAR INDICATOR (TWI)

• Tyre mounting / demounting and changing can be dangerous and should be done by trained personnel using proper tools and procedure.
• Never mount or use damaged tyres/ rims.
• Explosion of tyre rim assembly due to improper mounting , mis-application, improper inflation or overloading leading to serious injuries or death.
• Never use inflammable substance into a tyre.
• Never use tyre worn beyond TWI.
• Observed posted speed limits
• Avoid fast start , stops and turns.
• Avoid potholes and objects on the roads.
• Do not run over curbs and hit the tyre against side railings, dividers and curbs.
• Do not spin the wheels.
• It is dangerous to neglect tyre damages.
• Do not overload tyres.

LOAD SPEED INDEX

Load Index: A numerical code or numerical number associated with the maximum load a tyre can carry at the speed indicated by its speed symbol under the specified service conditions.

Speed Symbol: Speed symbol is an alphabet indicate the maximum speed at which a tyre can carry a load corresponding to its load index.

TYRE VISUAL INSPECTION

Pneumatic tyres having the following conditions are considered unsafe for use:

• Tyre body fabric/belts/plies exposed by wear, by injury, road hazards, damage, abrasions or scoring etc.
• Tyres having incipient failures by local deformation, bulging, swelling etc.
• Pneumatic tyre which has been patched or repaired improperly or use of gaiter other than proper repair and vulcanization.
• Tyre worn beyond tread wear indicator, having signs of severe uneven, mis-alignment, patchy wear.
• Broken cord or run flat due to puncture, damage in bead area, damaged Inner liner of tubeless tyre