Subaru LEGACY 2006 Manual page 893

asieps_tobira.book 16 ページ ２００９年１０月２６日 月曜日 午前９時１６分
STARTING/CHARGING SYSTEMS
E: INSPECTION
1. ARMATURE
1) Check the commutator for signs of seizure or
stepped wear caused by roughness of the surface.
If it has minor wear, correct it by using sand paper
(#300).
2) Run-out test
Check for run-out on the commutator. If excessive,
replace it.
Commutator run-out:
Standard
3.1 mm (0.1220 in)
Service limit
3.8 mm (0.1496 in) or less
(C)
(B)
(A) Dial gauge
(B) Block
(C) Armature
3) Armature short-circuit test
Place the armature on the growler tester to check
for short circuits. Hold an iron sheet (thickness
gauge, etc.) against the armature core while slowly
rotating the armature. If the circuit of the armature
is shorted, the steel seat will vibrate, causing it to
move towards the core. When the steel seat has
moved or vibrated, replace or repair the armature
with the shorted circuit.
(A)
(C)
(B)
(A) Iron sheet (Thickness gauge etc.)
(B) Growler tester
(C) Armature
Starter
(A)
SC-02077
SC-02078
SC(H4SO)-16
4) Armature discontinuity test
Using a circuit tester, touch one probe to the arma-
ture and the other to commutator. If there is no con-
tinuity, it is normal. If there is continuity, the
armature is grounded.
If grounded, replace the armature.
(A)
(B)
(A) Armature
(B) Commutator
(C) Circuit tester
2. OVERRUNNING CLUTCH
Check that there is no wear or damage to the piston
teeth. Replace if damaged. If it rotates smoothly
when rotated in the correct direction (counterclock-
wise) and does not return to the other direction, it is
normal.
CAUTION:
To prevent spilling of grease, do not clean the
overrunning clutch with oil.
3. BRUSH AND BRUSH HOLDER
1) Brush length
Measure the length of the brush. If it exceeds ser-
vice limits, replace it.
Replace if there is abnormal wear or cracks.
Brush length:
Standard
9.0 mm (0.354 in)
Service limit
6.0 mm (0.236 in)
(A)
(A) Brush
(C)
SC-02079
SC-02080