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Troubleshooting (3)-②
【3】 In case of ISO type ( 10 nuts )
(1) Whether there are any damages on the seating surface of
wheels, nuts, and or thread face.
● Replace the parts when there are damages or
unevenness of seating face.
(2) Whether the wheel bolt is extended ( stretched ).
● If so, replace the bolt with new one.
(3) Whether appropriate amount of grease is applied or excessive grease is applied.
● Excessive grease application is a cause of excessive axial force generation. Pay full attention to the amount
and the portion applied.
Refer automobile manufacturer's instruction.
● For the tapered area, apply grease to the degree that the excessive grease does not leak when the nut and
the washer are pressed. If excessive, wipe the grease off gently with a waste cloth.
(4) Whether the torque is appropriate.
● Refer automobile manufacturer's instruction.
【4】 After examine bolts, nuts and others for abnormality or changing to new parts, please fasten nuts with extra
pre-tightening.
(Caution)
If the wheel nut is made up of the inner nut and the outer nut, please make sure to fasten the inner nut
with recommended torque after loosening the outer nut.
[CH1]
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