WHEELS AND TYRES 477 SUSPENSION WHEEL ASSEMBLY REPLACEMENT Typical defects that require Wheel assembly replacement : (a) Cracks in the wheel disc face, in particular the bolt hole area and the ventilation holes can be concerned. (b) Deformations or abnormal imprints in the seats of the bolts / studs fixings. (c) Leaks in tubeless tyres derived by micro-cracks in the rim or by wear and tear marks on the rimtyre matching surface. (d) Bent rim flanges (generally due to impacts against obstacles) (e) Wheels with greater run - out may cause vibrations which may ultimately lead us to replace the wheel assembly. (Refer wheel run - out procedure to check wheel run out) NOTE : 1. Newwheel must be equivalent to the original wheel in terms of load capacity, diameter and rim with offset and mounting configuration. 2. Any repairs to wheels which involves welding or heating are not approved. All damaged wheels should be replaced. 3. It is not al lowed to perform any technical modification on wheel assembly. REPAIRING ATUBELESS TYRE PUNCTURE NOTE : Following procedure is only for reference. Please follow manufacturer’s instructions provided with puncture repair kit. Following steps to be followed while repairing a puncture of a tubeless tyre : STEP 1: Carefully inspect (visual inspection) for any offending nails or sharp objects. If object doesn’t get visualized, apply soap solution on tyre tread and look for air bubbles which can indicate the air leakage through punctured area. NOTE : If tyre pressure is too low, inflate it to the correct pressure and proceed with STEP 1 STEP 2: Once the nail or foreign object is found, pull the object out with plier and mark the punctured area (e.g. by chalk). STEP 3: Insert a rubber sealant in T-shaped tool. Deflate the tyre completely and push the tool in to marked area such that rubber sealant gets inserted in to the tyre until about 25 percent of its length remains above the tread surface. Make sure that rubber sealant is right through the punctured area. STEP 4: Pull out the T-shaped tool. Let rubber sealant to set and seal for about five minutes and then inflate the tyre to specified pressure. STEP 5: Once the tyre is inflated, cut off the visible portion of rubber sealant (if present) by scissor. In case the puncture is big and rubber sealant has not completely sealed it, insert a second rubber sealant at the point of leakage. This will only be needed if the puncture is large. STEP 6: Inspect the tyre for more leaks and proceed withSTEP 2 if another leakage is found.
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