King Pins
NOTE:
You are not required to replace king pins in axle sets. However, when replacing a king pin due to wear exceeding manufacturer's specifications, you may suggest replacement of the other king pin on the axle if its measurement shows it is close to the end of its useful life.
| Condition | Code | Procedure |
|---|---|---|
| Bearing balls pitted | A | Require replacement |
| Bearing balls worn | A | Require replacement |
| Bearing races pitted | A | Require replacement |
| Bearing races worn | A | Require replacement |
| Bearing rollers pitted | A | Require replacement |
| Bearing rollers worn | A | Require replacement |
| Bearing seal bent | 2 | Suggest replacement of seal or bearing |
| Bearing seal missing | C | Require replacement of seal if available separately or bearing and seal together |
| Bearing seal torn | A | Require replacement of seal if available separately or bearing and seal together |
| Binding | A | Require repair or replacement of affected parts |
| End caps missing | C | Require replacement of missing part, if available; otherwise, replace king pin |
| End play exceeds specifications | B | Require repair |
| Grease fitting broken | A | Require replacement of grease fitting |
| Grease fitting missing | C | Require replacement of grease fitting |
| Grease fitting will not seal | A | Require replacement of grease fitting |
| Locating pins missing | C | Require replacement of missing part, if available; otherwise, replace king pin |
| Looseness exceeds manufacturer's specifications | B | Require replacement of worn parts |
| Seized | A | Require replacement |
| Threads damaged | A | Require repair or replacement |
| Threads stripped (threads missing) | A | Require replacement |
| Will not take grease | 2 | Suggest replacement of grease fitting |
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NOTE:
If king pin will not take grease after replacement of grease fitting, suggest replacement of king pin.
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