| Check | ||
1 | Visually check the I-beam for any bend, twist or fatigue cracks in between the spring seat and king pin bore. | ||
2 | Inspect the I-beam king pin bores and the top and bottom surface mating steering knuckle for any damage/wear. | The bore must be free from pitting, rust, scoring marks and cracks. | |
If any above mention indication is observed, | |||
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replace the axle. | |||
3 | Thoroughly clean and visually inspect the steering knuckle unit. | Check threads for hub clamp nut and clean if necessary. | |
If any pitting marks are observed in the bearing seating area, | |||
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replace the steering knuckle. | |||
4 | Inspect the steering knuckle bush bore. | The bore must be free from pitting, scoring and cracks. | |
5 | Inspect the steering knuckle bushes for wear (bush inner diameter) in fitted condition. | Internal diameter of the steering knuckle bush | |
If the internal diameter of the bush exceeds the specified limit, | |||
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replace the bush. | |||
6 | Inspect the king pin outer diameter. | Outer diameter of the king pin | |
If the outer diameter of the king pin is below the specified limit, | |||
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replace the king pin. | |||
7 | Inspect the king pin thrust bearing after cleaning for smooth rotation. |