Subaru Legacy 2003 Service Manual page 386

5) Armature ground test
Using a circuit tester, touch one probe to the com-
mutator segment and the other to shaft. There
should be no continuity. If there is continuity, the ar-
mature is grounded.
Replace the armature if it is grounded.
2. YOKE
Make sure pole is set in position.
3. OVERRUNNING CLUTCH
Inspect the teeth of pinion for wear and damage.
Replace if it is damaged. Rotate the pinion in direc-
tion of rotation (counterclockwise). It should rotate
smoothly. But in opposite direction, it should be
locked.
CAUTION:
Do not clean overrunning clutch with oil to pre-
vent grease from flowing out.
4. BRUSH AND BRUSH HOLDER
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
12.3 mm (0.484 in)
Service limit
7.0 mm (0.276 in)
(A) Service limit line
(B) Brush
STARTER
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(A)
(B)
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SC(H4SO)-11
STARTING/CHARGING SYSTEMS
2) Brush movement
Be sure brush moves smoothly inside brush holder.
3) Brush spring force
Measure brush spring force with a spring scale. If it
is less than the service limit, replace brush holder.
Brush spring force:
Standard
21.6 N (2.2 kgf, 4.9 lb) (when new)
Service limit
5.9 N (0.6 kgf, 1.3 lb)
5. SWITCH ASSEMBLY
Be sure there is continuity between terminals S and
M, and between terminal S and ground. Use a cir-
cuit tester (set in "ohm").
Also check to be sure there is no continuity be-
tween terminal M and B.
Terminal / Specified resistance:
S — M / Less than 1 Ω Ω Ω Ω
S — Ground / Less than 1 Ω Ω Ω Ω
M — B / More than 1 M Ω Ω Ω Ω
B
S
M
6. SWITCH ASSEMBLY OPERATION
1) Connect the terminal S of switch assembly to
positive terminal of battery with a lead wire, and
starter body to ground terminal of battery. The pin-
ion should be forced endwise on shaft.
CAUTION:
With the pinion forced endwise on shaft, starter
motor can sometimes rotate because current
flows, through pull-in coil, to motor. This is not
a problem.
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