G424 Service Manual Starting System45
1EN0292
6EN0600
6EN0601
4. Brush
(1) Brushes that are worn beyond wear limit line, or oil
soaked, should be replaced.
(2) When replacing ground brush, side the brush from brush
holder by prying retainer spring back.
5. Armature Coil Short Circuit Test
(1) Place armature on a growler.
(2) Hold a thin steel blade parallel and just above while
rotating armature slowly in growler. A shorted armature
will cause blade to vibrate and be attracted to the core.
Replace shorted armature.
6. Armature Coil Ground Test
Check the insulation between ground commutator segment
and the armature coil core. If there should be no continuity.
7. Armature Coil Open Circuit Check
Check the continuity between segments. If there should be
continuity.
Wear
limit
line
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