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When lubricating a U-joint, fresh grease appears at all four trunnion seals. Which of the following is probably true? a) the seals are worn and should be replaced. b) the U-joint has been properly lubricated
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When lubricating a U-joint, fresh grease appears at all four trunnion seals. Which of the following is probably true?

a) the seals are worn and should be replaced.
b) the U-joint has been properly lubricated
c) the bearings are worn and should be replaced.
d) the trunnions are worn and the U-joint should be replaced.

User Ghulam Mohayudin
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6.9k points

1 Answer

4 votes

Final answer:

Fresh grease at all four trunnion seals of a U-joint indicates that the U-joint has been properly lubricated, signifying successful maintenance.

Step-by-step explanation:

When lubricating a U-joint, if fresh grease appears at all four trunnion seals, it is likely that the U-joint has been properly lubricated.

This occurrence indicates that grease has reached all necessary components for effective lubrication. Seeing the grease indicates that it has forced out old grease and contaminants, which is a sign of successful maintenance.

User IMeMyself
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