| The thrust bearing shown in the illustration has over eight years of ahead running time. Measurements show "i1" is 4 mm and "i2" is 1mm. Which of the following conditions is indicated and what steps should be taken, if any? Illustration MO-0121 |
| A) No appreciable wear has occurred, and the proper maintenance procedures should continue to be followed. |
| B) A wear rate of 1.6 mm per year occurred. Although not excessive, this condition may require more frequent monitoring. |
| C) The stops in which the thrust bearing block rides are worn, and it is necessary to return these to their original specifications. |
| D) A wear rate of 1.6 mm per year is excessive and requires immediate assistance from the manufacturer fi¶elsd support. |
