subaru Workshop Repair Guides

Subaru Workshop Service and Repair Manuals

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1. Brush length

Measure the brush length and replace if it exceeds the service limit.
Replace if abnormal wear or cracks are noticed.

Brush length:

Standard
15 mm (0.59 in)

Service limit
10 mm (0.39 in)

2. Brush movement

Be sure brush moves smoothly inside brush holder.

3. Insulation resistance of brush holder

Be sure there is no continuity between brush holder and its plate.

4. Brush spring force

Measure brush spring force with a spring scale. If it is less than the service limit, replace brush spring.

Brush spring force:

Standard
18.6 N (1.9 kg, 4.2 lb) (when new) 

Service limit
6.9 N (0.7 kg, 1.5 lb)

5. BEARING

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