Question 416Motor Plants - Assistant Engineer

70% to pass

When installing the bearing cap on the device shown in the illustration, which of the precautions listed must be observed? Illustration MO-0121

Diagram for USCG Motor Plants Assistant: When installing the bearing cap on the device shown in the illustration, which...
AOnce the bearing cap is properly torqued, measure the end gap dimensions to ascertain even tightening of the cap.
BIf the device is covered with abrasive material or contaminates, the unit may be reassembled, provided an abnormal method of reassembly is followed.
CPrior to installing the cap, position the thrust shoes in their proper locations.
DAfter applying anti-seize to the external threads, torque one side at a time to the appropriate values using a quality torque wrench.
AI Explanation

The correct answer is A) Once the bearing cap is properly torqued, measure the end gap dimensions to ascertain even tightening of the cap. This is the correct answer because it is important to ensure the bearing cap is tightened evenly to prevent damage to the bearing or other components. Measuring the end gap dimensions after torqueing the cap allows the technician to verify the cap has been tightened properly and evenly. The other options are incorrect because: B) Reassembling a device with contaminants is generally not recommended, as it can lead to premature failure; C) Positioning the thrust shoes in the proper locations is important, but it does not directly relate to installing the bearing cap; and D) Torqueing one side at a time is not necessary for a bearing cap installation.

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