How can you determine the remaining service life of starter-generator brushes?

The method of visually inspecting wear on the brushes is essential for determining the remaining service life of starter-generator brushes. Over time, brushes experience wear due to friction with the commutator, which can lead to performance degradation and potential failure. A visual inspection allows an individual to assess the physical condition of the brushes, including their length, surface wear, and any signs of damage such as cracking or pitting. These observations can provide clear indicators of when the brushes need to be replaced to maintain optimal performance.

While measuring electrical resistance can provide some insights into the electrical performance of a circuit, it does not directly indicate the mechanical wear and remaining life of the brushes. Checking temperature during operation is useful for monitoring the overall health of the electrical system but does not provide specific information regarding the wear state of the brushes. Counting operational cycles might give an indication of usage, but without direct visual assessment, it may not reflect the current physical condition or wear level of the brushes accurately. Thus, visual inspection is the most reliable method for assessing the remaining service life of starter-generator brushes.