201-03-5 Wheel and Tyre
Diagnosis and Test
Failure Phenomena
Phenomena
Possible Failure Causes
Measures
Excessive Wear of the Edge of the
Tyre
• Insufficient tyre air pressure •The tyre air pressure is adjusted.
•Overload of the automobile
• Correction should be performed if
necessary.
•High-speed turning
• Correction should be performed if
necessary.
• Incorrect toe-in
•Incorrect camber angle
• Toe-in is adjusted. See section
201-00 for relevant information.
Excessive Wear of the Tyre Crown •Over high tyre air pressure • Tyre air pressure is adjusted.
• Frequent acceleration or braking
• Correction should be performed if
necessary.
• Excessive Wear of the other Tyres • Incorrect tyre air pressure • Tyre air pressure is adjusted.
• Tyer is need to be replaced. • Tyer is replaced.
• The automobile is overload.
• Load specification should be
inspected according to
requirements.
• The front or the back damping
device is loose or leaks.
• Parts should be tightened or
replaced if necessary. See section
201-01(the front) or section 201-02
(the back).
• Wheel bearing is worn.
• Wheel bearing and / or hub should
be repalced. See section 201-01(the
front) or section 201-02 (the back).
• Suspension parts, axle linings and
ball joint are worn or damaged.
• Inspection, repair or part
replacement should be performed if
necessary.
• Lateral or radial run-out of the
wheel or the tyre is excessive.
• Run-out amount should be
measured by dial gauge, and
inspection, repair or parts
replacement should be performed id
necessary.
• Wheels are difficult to install.
• The method is incorrect or parts
are mismatched, the parts include
wheel bolts and nuts.
• Parts and components are eroded,
abraded or damaged.
• Clean or replace the parts.
• Wheels are rust out or eroded. • The maintenance is improper.
• Cleaning or coating for protection
should be performed.
U-Shine
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