201-03-7 Wheel and Tyre
Diagnosis and Test（continued）
• Foreign matters exist between
the installation surface of the wheel
and the installation surface of the
hub.
•The installation surfaces should be
cleaned.
• The radial run-out of the wheel or
the tyre is excessive.
•Radial run-out of the wheel and the
tyre should be measured by the dial
gauge. If the radial run-out amount
of the wheel or the tyre is out of the
scope, a further inspection on radial
run-out of the wheel bolt should be
performed. If some parts are out of
the range, replacements should be
performed.
• There are cracks at the bottom part
of the wheel rim or the drain tank.
• The vehicle is overloaded or
abused.
• The wheel should be replaced and
load and running conditions should
be inspected. An over high tyre air
pressure should be avoided. Tyre
rim specifications, work load, tyre
size, textile cord layer and the tyre
structure should be inspected.
•Tools are not properly used.
•Installation, disassembly and
maintenance procedures should be
inspected.
•Bolt thread of the wheel is
damaged.
• Torque is too high.
• Wheel bolt should be replaced, and
tightening should be performed
according to the regulated
requirements.
•Wheel bolt is break.
• Wheel bolt surface is not well
processed.
•The wheel bolt should be replaced,
and tightening should be performed
according to the regulated
requirements.
•Overload
• The wheel bolt should be replaced,
tightening should be performed
according to the regulated
requirements, and practical load
and the regulated load rate should
be compared.
• Bolt holes of the wheel are rusty. •The wheel bolts are loose.
•Inspect the assembly, if damaged
parts are found, replace the
damaged ones. And tighten the
parts as required.
• Tyre bolts are damaged. •Wheel assembly is loose.
• The wheel bolt should be replaced,
and tightening should be performed
according to the regulated
requirements.
• The wheel bolts are locked too
tightly.
•Correct tightening procedures
should be followed.
Benni Mini
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