Brushes & Spring Test

Insert the brush (A) into the brush holder, and bring the brush into contact with the commutator, attach a spring scale (B) to the spring (C). Measure the spring tension at the moment the spring lifts off the brush. See Fig 1. If the spring tension is not within specification, replace the spring. See STARTER SPECIFICATIONS .

Fig 1: Measuring Brush Spring Tension

Courtesy of AMERICAN HONDA MOTOR CO., INC.