1984-Montero · electrical a · страница 93 из 169 · Открыть оригинал PDF ↗
III -+
BRUSHES AND SPRINGSREPI;ACEMENT
1. Brushes that are worn beyond wear limit line, or are
oil-soaked, should be replaced.
2. When replacing field coil brushes, crush worn brush with
pliers, taking care not to damage pigtail.
TESTING ARMATURE Testing Armature for Short Circuit
1. Place armature in 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.
Testing Armature for Grounding
1. Touch armature coil core and the end of each commu-
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