Brushes & Brush Holder Test
- Check brushes for wear by measuring amount of usable brush remaining. Replace brushes if near wear limit line. See Fig 1
. Using a digital ohmmeter, check for continuity between insulated brush holders and brush plate. See Fig 2
. Replace brush holder if there is continuity.
- Ensure brushes slide smoothly in brush holder. Clean brush channels as necessary. Using a spring balance, measure force of brush spring. Measure force at moment brush spring separates from brush. Replace brush spring if force is less than specification. See STARTER MOTOR SPECIFICATIONS
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Courtesy of FORD MOTOR CO.
Courtesy of FORD MOTOR CO.