SC(H6DO)-15
Starter
STARTING/CHARGING SYSTEMS
E: INSPECTION
1. ARMATURE
1) Check the commutator for any sign of burns of
rough surfaces or stepped wear. If it has minor
wear, correct it by using sand paper (#300).
2) Run-out test
Check the commutator for run-out, and then re-
place if it exceeds the limit.
Commutator run-out:
Standard
3.1 mm (0.1220 in)
Service limit
Less than 3.8 mm (0.1496 in)
3) Armature short-circuit test
Check the armature for short circuit by placing it on
growler tester. Hold an iron sheet (thickness
gauge, etc. ) against the armature core while slowly
rotating the armature. A short-circuited armature
will cause the iron sheet to vibrate and to be attract-
ed to core. If the iron sheet is attracted or vibrates,
the armature, which is short-circuited, must be re-
placed or repaired.
4) Armature discontinuity test
Using a circuit tester, touch one probe to the Arma-
ture and the other to commutator. No continuity is
normal. If there is continuity, the armature is
grounded.
Replace the armature if it is grounded.
2. OVERRUNNING CLUTCH
Inspect the teeth of pinion for wear and damage.
Replace if it is damaged. Rotate the pinion in the
right direction of rotation (counterclockwise). It
should rotate smoothly. But in the opposite direc-
tion, it should be locked.
CAUTION:
Do not clean the overrunning clutch with oil to
prevent grease from flowing out.
3. BRUSH AND BRUSH HOLDER
1) Brush length
Measure the brush length, and then replace if it ex-
ceeds the service limit.
Replace if abnormal wear or cracks are noticed.
Brush length:
Standard
9.0 mm (0.354 in)
Service limit
6.0 mm (0.236 in)
(A) Dial gauge
(B) Block
(C) Armature
(A) Iron sheet (thickness gauge etc.)
(B) Growler tester
(C) Armature
SC-02077
(A)
(B)
(C)
SC-02078
(A)
(C)
(B)
(A) Armature
(B) Commutator
(C) Circuit tester
(A) Brush
SC-02079
(A)
(B)
(C)
SC-02080
(A)
