Which of the diagrams shown in the illustration depicts the proper method of aligning brushes on a commutator for a DC machine? Illustration EL-0057

Correct Answer: Option C — C

Proper alignment requires brush faces to be positioned parallel to the commutator segments and evenly spaced around the periphery to ensure simultaneous shorting of coils undergoing commutation at the neutral plane, preventing unequal current distribution and excessive sparking per IEEE 45 maintenance practices.