Questions: When pins and bushings wear on tracks, how many degrees do you rotate the pins and bushings to restore track pitch? 90 degrees 180 degrees 360 degrees 120 degrees

When pins and bushings wear on tracks, how many degrees do you rotate the pins and bushings to restore track pitch? 90 degrees 180 degrees 360 degrees 120 degrees
Transcript text: When pins and bushings wear on tracks, how many degrees do you rotate the pins and bushings to restore track pitch? 90 degrees 180 degrees 360 degrees 120 degrees
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Solution

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The answer is the second one (or B): 180 degrees.

Explanation for each option:

  • 90 degrees: Rotating the pins and bushings by 90 degrees would not align the unworn surfaces properly to restore the track pitch.
  • 180 degrees: Rotating the pins and bushings by 180 degrees aligns the unworn surfaces, effectively restoring the track pitch and extending the life of the track.
  • 360 degrees: Rotating the pins and bushings by 360 degrees would bring them back to their original worn position, which would not restore the track pitch.
  • 120 degrees: Rotating the pins and bushings by 120 degrees would not align the unworn surfaces properly to restore the track pitch.

Summary: To restore track pitch when pins and bushings wear on tracks, you rotate the pins and bushings by 180 degrees.

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