ELECTRICAL COMPONENTS
Starter/Generator
Page 12-8 2001 Pioneer 1200 Gasoline Vehicle Maintenance and Service Manual
12
Field Coil Removal, Continued:
NOTE: Do not remove the insulators or the field coils unless an electrical test indicates that it is necessary
(Figure 12-11, Page 12-8). See Test Procedure 8, Section 11, Page 11-29.
Visual Inspection of Armature
Obvious defects can be seen by examining the armature. If an armature has frayed or charred insulation,
broken wires or thrown solder, it is obvious without testing that it should be replaced. Faults seen during the
visual inspection can aid in diagnosing the original cause of the failure. Items to look for are listed below.
• Burned, charred, or cracked insulation
• Improperly cured varnish
• Thrown solder
• Flared armature windings
• Worn, burned, or glazed commutator
• Loose or raised commutator bars
• Bruised or damaged armature core laminations
• Worn armature bearing or shaft
• 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 commuta-
tor can be polished away with 400 grit (or finer) sandpaper. See following CAUTION.
Figure 12-11 Field Coil Assembly
RETAINING NUT
INSULATOR
FIELD COIL
TERMINAL
HOUSING
FIELD COIL
POLE PIECE SCREW
POLE PIECES
