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MULTI PURPOSE & TBB & LTB TIRES

DEFENCE

PERFORMANCE

TECHNOLOGY & SAFETY PETLAS ADVANTAGE
MPT

MOUNTING AND DISMOUNTING INSTRUCTIONS

Mounting and dismounting operations both can be extremely dangerous processes if not handled properly. These operations must be performed by authorized service points with appropriate tools and machinery used by experienced technicians.

DISMOUNTING

  • Remove the tire and the wheel from the vehicle.
  • Deflate the tire completely. Never try to unseat the beads of an inflated tire. Use tools that won’t damage the rim or the beads of tire.
  • Lubricate both beads completely.
  • Push bead of the bead seat of the wheel with appropriate tools.
  • Completely unset the first bead before unseating the second bead from the wheel. 
  • Complete dismounting the bead off the valve.

MOUNTING

  • Make sure that the rim and the tire are compatible with manufacturer instructions.
  • The rim must be clean and undamaged. Never mount a tire to a cracked, smashed, deformed or repaired/welded rim.  Any material which may harm the tire such as oil, dust or dirt must be cleaned from the rim.
  • Lubricate beads and rim.

  • The tire inflation air has to be moisture free. Pry the first bead over the rim flange and only after that, continue with the second bead.

  • Turn the assembly, inflate with no more than 5psi pressure and complete inflation process using a safety case.

  • Any information regarding rotation direction or outer sides stated on the sidewall should be taken into consideration.

TIRE DAMAGES

IMPACT DAMAGE

Tire impact damage or road damage includes tears, punctures, cuts and other physical injuries that damage the carcass of the tire when it directly contacts with an object. Bulges or bubbles can appear on the sidewall of your tire when that kind of damage happens. This means that the cords within the tire structure are damaged and air may be leaking through the carcass or the body of the tire.

These kinds of damages generally happen when the tire directly passes over a sharp object or driving on a tough road for an excessive amount of time. Reducing the speed on bad conditioned roads has a considerable effect on protecting the tires from impact damages.

If you notice impact damage on your tire, you should change the tire with the spare one immediately and visit the nearest tire service. 


CUTS

Driving your vehicle over sharp objects (glass, stone, nail etc.) or on rough surfaces may lead to cuts on your tire. To avoid such problems, it is highly recommended not to drive your vehicle in improper road conditions.

PUNCTURE

Sharp objects can cause deep damages and punctures on the tire. In that case the air in the tire air swiftly and the tire loses its integrity.    

CHAFER SEPARATION

Probable causes for chafer separation are improper bead seating, improper rim size, overload condition, under inflation, impact or possible manufacturing conditions.

BURNED BEADS

Generally emanate from excessive exposure to heat caused by frequent hard braking; improperly adjusted brakes; faulty braking system or insufficient air flow around the brakes.

SIDEWALL DAMAGE

It occurs as a result of a loss in inflation pressure. As the condition progresses, the diagnosis of the root cause becomes difficult – if not impossible.

SHOULDER SECTION DAMAGE

Stems from under inflation, overloading or excessive speed as these conditions can build the heat up. Excessive heat can weaken or damage cords or rubber compounds which may in turn cause separation of the plies.