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38 3. Inspection on abnormal abrasion of tire Abnormal abrasion of tire shown in right figure might occur. For possible reason and processing mode, please refer to following sheet. Shown as figure.
Fig. Abrasion of tire
Possible reason Processing mode (a) * Tire pressure is lacking(both sides is abraded) * High speed cornering * Tire has not been adjusted complexly. * Measure and adjust tire pressure * Reduce speed * Adjust tire (b) * Tire pressure is too high (middle part is abraded) * Tire has not been adjusted complexly. * Measure and adjust tire pressure * Adjust tire (c) *Toein is incorrect * Adjust toein (d) * Camber angle or caster angle is incorrect
* Suspension system fault * Tire is unbalanced * Brake drum or brake disc is out of round * Other mechanical problems * Adjust tire * Adjust, repair or replace parts of axle shaft and suspension system. * Repair or replace * Perform tire balance or replace it. * Calibrate or replace * Calibrate or replace * Adjust tire
4. Precautions relating to rim and tire (1) Do not use unqualified rim or tire. (2) Aluminum alloy ring is easy to be scratched, please clean it with soft cloth while not steel brush. Do not contact boiled water with the ring while cleaning vehicle with steam. (3) In case that Basal compound (such as earth water, mud on ground) attach on aluminum alloy ring, please clean out them with neutral cleanser to avoid of damaging ring.
5. Replacement of tire (1) Before assembly of tire valve, please check if air valve on wheel is sleek and has no burr, then wipe glycerin on surface of rubber part of air valve or dip air valve in glycerin, and at last, assemble position ring of air valve into hole of wheel with special tools and pressure of 200-400N (replacing glycerin with soapy water is allowable). (2) Before assemble wheel, please wipe glycerin or soapy water around tire bead, and note: point uniformity test mark on wheel to symmetry point mark if one symmetry point mark is existing. Point uniformity test mark on wheel to air valve if no symmetry point existing. Please point air valve to static balance test mark if neither symmetry point, or dynamic balance test mark existing on wheel, while a static balance test mark |