Operation CHARM: Car repair manuals for everyone.

Alternator Brush: Testing and Inspection

BRUSHES
1. Ensure the brushes have not been worn to or beyond their wear limit.

Brush wear limit: 3.6 mm (0.15 in.)

2. Check the brush springs for burning and loss of tension due to excessive heat.

SLIP RINGS
1. Check the slip rings for excessive wear and damage.

Minimum slip ring diameter: 26.7 mm (1.051 in.)