Subaru LEGACY 2003 Service Manual page 21

3. STATOR
1) Continuity test
Inspect the stator coil for continuity between each
end of the lead wires. If resistance is 1 M Ω or
more, the lead wire is broken, and so replace the
stator assembly.
( A )
(A) Stator
2) Insulation test
Inspect the stator coil for continuity between stator
core and each end of lead wire. If resistance is 1 Ω
or less, the stator coil is grounded, and so replace
the stator assembly.
GENERATOR
4. BRUSH
1) Measure the length of each brush. If wear ex-
ceeds the service limit, replace the brush. Each
brush has the service limit mark (A) on it.
Brush length:
Standard
Service limit
SC-00047
2) Checking brush spring for proper pressure
Using a spring pressure indicator, push the brush
into the brush holder until its tip protrudes 2 mm
(0.08 in). Then measure the pressure of brush
spring. If the pressure is less than 2.2 N (224 g,
7.91 oz), replace the brush spring with a new one.
The new spring must have a pressure of 4.8 to 6.0
N (489 to 612 g, 17.26 to 21.60 oz).
SC-00048
5. BEARING (FRONT SIDE)
Check the front ball bearing. If the resistance is felt
while rotating, or if abnormal noise is heard, re-
place the ball bearing.
SC(H4SO)-19
STARTING/CHARGING SYSTEMS
18.5 mm (0.728 in)
5.0 mm (0.197 in)
SC-00162
SC-00093