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Cause of defect
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Way of elimination
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Noise, knock from outside the forward bridge at car movement (especially on turn)
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Deterioration of details of the external hinge of a drive of a forward wheel
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Replace the worn out or damaged hinges
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Deformation of shaft of drives of wheels
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Replace shaft
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Greasing leak
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Damage or rupture of a protective cover internal
Or external hinges
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Replace greasing in the hinge and a protective cover. At deterioration or damage of details replace
The hinge in gathering
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