Club Car 2007 XRT 800, Руководство по техническому обслуживанию, Страница: 205 / 516

ELECTRICAL COMPONENTS: 800 AND 810 GASOLINE VEHICLES Starter/Generator
2007-2008 XRT 800, 810 and 850 Maintenance and Service Manual Page 13-7
13
Commutator Cleaning and Inspection
1. Clean the carbon dust, dirt and oil from the commutator. Slight roughness of the commutator can be pol-
ished away with 400 grit (or finer) sandpaper. See following CAUTION .
CAUT ION
• 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 (A
1
and A
2
), and two points 90° to each other to the inside of the com-
mutator (B
1
and B
2
). If the commutator diameter is less than 1.535 inches (39 mm) at any of the four loca-
tions, replace the armature assembly and bearings (Figure 13-11, Page 13-7) .
Armature Ground Test
CAUT ION
• Do not submerge armature in solvent.
NOTE: Before testing, wipe the armature with a clean cloth and remove carbon dust and metal particles
from between commutator bars.
1. Use a multimeter set on 200 ohms and place the positive (+) probe on the commutator bars and the neg-
ative (–) probe on the armature core. The reading should be no continuity. If the reading is incorrect,
replace the armature and the two bearings
(Figure 13-12, Page 13-8) .
Visual Inspection of Field Coils
Burned, blackened, charred or scorched coil insulation indicates the starter/generator has overheated due to
overloads, grounding or shorted coil windings and should be replaced. Be sure the insulators are tight in the
housing.
Figure 13-11 Inspect Commutator
A 2
A
B B
A
1 1
1 1
A
1
Measure each position
in 2 places, 90 apart.