Suzuki WagonR+ RB310 Service Manual page 2686

INSPECTION
Rotor
1) Using ohmmeter (1), check for continuity between slip rings of
rotor (2).
If there is no continuity, replace rotor.
Standard resistance: 2.5 – 2.9 Ω
2) Using ohmmeter (1), check that there is no continuity between
1
slip ring (2) and rotor core (3).
If there is continuity, replace rotor.
3) Check slip rings for roughness or scoring.
If rough or scored, replace rotor.
Stator
1) Using ohmmeter (1), check all stator coil leads (2) for continuity.
If there is no continuity, replace stator.
2) Using ohmmeter (1), check that there is no continuity between
stator coil leads (2) and stator core (3).
If there is continuity, replace stator.
Brush and brush holder
Check each brush (1) for wear by measuring its length.
If brush is found worn down to service limit, replace brush.
Brush length "a"
Standard: 16 mm (0.63 in.)
Service limit: 2 mm (0.08 in.)
CHARGING SYSTEM 6H-17