1. Inspect brushes for wear.
z
If any brush is worn almost to or beyond the limit, replace all of the brushes.
Generator brush length
Standard: 22.5 mm {0.89 in}
Minimum: 5.0 mm {0.20 in}
Fig. 13: Identifying Brush Length
Courtesy of MAZDA MOTORS CORP.
Brush spring
1. Measure the force of the brush spring using a spring pressure gauge.
2. Read the spring pressure gauge at the brush tip projection of
2 mm {0.079 in}
.
z
Replace the brush spring if necessary.
Generator brush spring force
Standard: 4.1-5.3 N {0.42-0.54 kgf, 0.92-1.19 lbf}
Minimum: 1.7 N {0.17 kgf, 0.38 lbf}
Fig. 14: Measuring Force Of Brush Spring With Spring Pressure Gauge
2008 Mazda CX-9 Grand Touring
2008 ENGINE Charging System (MZI-3.7) - Mazda CX-9
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