Visual Inspection Of Armature And Commutator; Commutator Cleaning And Inspection - Club Car Turf 252 2007 Maintenance And Service Manual

ELECTRICAL COMPONENTS: KEY-START WITH
NEUTRAL REV GAS VEHICLE

VISUAL INSPECTION OF ARMATURE AND COMMUTATOR

Some defects can be seen by examining the armature and commutator. Defects 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. Slight roughness of the commutator can be polished
away with 400 grit (or finer) sandpaper. See following CAUTION.
CAUTION
• Never use emery cloth on the commutator. Particles of emery are conductive and may short-circuit the
commutator bars. Never use oil or lubricants on the commutator or brushes.
2. Use a micrometer and measure the outside diameter at four points: two points 90° to each other to the outside
end of the commutator (A1 and A2), and two points 90° to each other to the inside of the commutator (B1 and B2).
If the commutator diameter is less than 1.535 inches (39 mm) at any of the four locations, replace the armature
assembly and bearings (Figure 13-11, Page 13-8).
2007-2009 Turf 252, Carryall 252 and XRT 900 Maintenance and Service Manual
13
Starter/Generator
Page 13-7