Field Windings Inspection; Motor Components - Club Car Electric Precedent 2008 Maintenance And Service Manual

18
Motor Component Testing and Inspection
A dirty or oily commutator should be cleaned and wiped dry. Abnormalities identified during the inspection can help
determine original cause of failure. Slight roughness of the commutator can be polished smooth with 400 grit or
finer sandpaper. See following CAUTION and NOTE.
CAUTION
• Do not use emery cloth to polish 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.
NOTE: Oil on the commutator may indicate a faulty transaxle input shaft oil seal.
Armature Ground Test
CAUTION
• Do not submerge the armature in solvent.
NOTE: Before testing the armature, wipe it clean with a clean cloth. Remove any carbon dust and metal particles from
between the commutator bars.
1. With a multimeter set to 200 ohms, place one probe on the commutator (1) and the other on the armature core
(2). The multimeter should indicate no continuity (Figure 18-7, Page 18-6). If the reading is incorrect, replace
the armature.
1
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Figure 18-7 Armature Test

FIELD WINDINGS INSPECTION

Burned or scorched insulation on the field windings indicates the motor has overheated due to overloads or grounded or
shorted coil windings. If the insulation on the field windings is scorched, replace the motor or the stator shell assembly.

MOTOR COMPONENTS

1. Inspect the insulators (4 and 7) for cracks or other damage (Figure 18-10, Page 18-8).
2. Inspect the brushes (13) for damage or excessive wear. Replace brushes if required. See following NOTE.
3. Inspect the brush springs (14) (Figure 18-10, Page 18-8). Replace springs that are discolored from heat (light
gold or blue tinted). Replace springs which apply a force of less than 16 oz. (Figure 18-8, Page 18-7).
Page 18-6 2008 Electric Precedent Maintenance and Service Manual
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MOTOR (MODEL 5BC59JBS6390)