
ELECTRICAL COMPONENTS
Starter/Generator
2005 FE350 Gasoline Vehicle Maintenance and Service Supplement
Page 12-7
12
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Worn, burned, or glazed commutator
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Loose or raised commutator bars
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Bruised or damaged armature core laminations
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Worn armature bearing or shaft
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Dirty or oily commutator
Commutator Cleaning and Inspection
1. Clean the carbon dust, dirt and oil from the commutator. Visually inspect the commutator for worn,
burned or glazed areas. Check for loose or raised commutator bars. Slight roughness of the commutator
can be polished away with 400 grit (or finer) sandpaper.
See following CAUTION
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CAUTION
• Do not use emery cloth on the commutator. Particles of emery are conductive and may short-
circuit the commutator bars. Do not use oil or lubricants on the commutator or brushes.
Figure 12-10 Field Coil Assembly
RETAINING NUT
INSULATOR
FIELD COIL
TERMINAL
HOUSING
FIELD COIL
POLE PIECE SCREW
POLE PIECE