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- Check the hub for cracks and spline for wear.
- Check the knuckle for cracks.
- Check for defective bearing.
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1.Tighten the following special tools to the specified torque.
- Front hub remover and installer (MB991017)
- Spacer (MB991000)
2.Rotate the hub in order to seat the bearing.
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3.Measure the wheel bearing starting torque by using the following special tools.
- Torque wrench (MB990685)
- Preload socket (MB990326)
Limit: 1.8 N·m
4.The starting torque must be within the limit and the hub rotation must be smooth.
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1.Measure to determine whether the wheel bearing axial play is within the limit or not by using the following special tools.
- Front hub remover and installer (MB991017)
- Spacer (MB991000)
Limit: 0.05 mm
2.If the play is not within the limit range while the nut is tightened to 236 ± 19 N·m, replace the knuckle assembly.
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