DIY: Tyre fitting and removal

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General instructions

Tire fitting and removal can be hazardous at times and cause injury. Entrust these procedures to specially trained experts only, using proper tools and operations. If not performed by qualified mechanic, these operations may cause visible or invisible damage to the tire and rim, which may result in breakage during subsequent use. In exceptional cases in which these operations cannot be carried out by an expert, fitting and removal must be performed by carefully following the instructions specially provided. Ensure that the tire to be fitted is the correct type and size for the vehicle concerned and the intended use. Particular attention must be paid to the compatibility of the rim and tire centering.

 For use of 5° rims on high powered vehicles, check that the rims for the drive wheels feature a knurling in the bead seat, which is capable of stopping rotation of the tires on the rim during moments of high traction, thus avoiding the shearing of the valve. Avoid painting the bead seats of rims for drive wheels with epoxy resin paints. In the case of rims with a special finish, carefully rasp and renew the protection with a normal anti-rust treatment.

– Fit with the same structure, tread pattern and size on the same axle of the vehicle. For dual fitting, use only tires of the same size, structure and groove depth and comply with the dual spacing specified for the size used.

– With new tires, any other parts (inner tube, flap, valve sealing ring) must also be new.

– Check used tires both externally and internally for water, moisture, foreign bodies or any sign of rust. If damage is found and assessed to be irreparable, the tire should be scrapped

– The rim must be clean and in good condition, especially if it has already been used.

Discard rusty, deformed, damaged or re-welded rims and rim components.

– Be careful not to damage any parts of the tire or tube during fitting and removal.

– Always use the proper specialized equipment and tools and the approved type of lubricant (never use silicone or petroleum-base lubricants).

 – Clean the tire bead area and the contact area between the rim and the tire.

– Check that the tire, tube and the flap are perfectly compatible.

– In the case of TUBE TYPE tires, ensure there is no air between the tire and inner tube.

 – For correct fitting of tube type tires, it is advisable to lightly powder and partially inflate the tube before placing it inside the tires in order to avoid creasing.

-Ensure that the tire is centered on the rim.

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