MOTOR (MODEL EJ4-4001)
Motor Component Testing and Inspection
2005 Precedent IQ System Electric Golf Car Maintenance and Service Manual
Page 15b-9
15B
Terminal Insulator Inspection
1. Remove the motor from the vehicle.
See Motor Removal on page 15b-2.
2. Remove the terminal insulators by performing steps 1 through 12 of Motor Disassembly on page 15b-4.
1. Inspect the insulators (4 and 6) for cracks or other damage
(Figure 15b-15, Page 15b-10)
. Replace
insulators as required.
Bearing Inspection
NOTE: Replacement of the end cap bearing is highly-recommended if the end cap is removed from the
motor. The following procedure is provided as a guideline for determining general bearing failure.
1. Remove the motor from the vehicle.
See Motor Removal on page 15b-2.
2. Remove the bearing by performing steps 1 through 14 of Motor Disassembly on page 15b-4.
3. Use a clean cloth to wipe the carbon dust off of the bearing. Inspect the bearing by spinning it by hand
and checking for both axial (A) and radial (B) play
(Figure 15b-14, Page 15b-9)
.
4. Replace the bearing if it is noisy, does not spin smoothly, or has excessive play. Check the bearing and
replace if rusted, worn, cracked, or if there is an abnormal color change in the metal of the bearing.
Speed Sensor Magnet Inspection
Inspect the speed sensor magnet (24) for rust, wear, and cracks
(Figure 15b-15, Page 15b-10)
. Replace the
magnet if necessary.
Figure 15b-13 Brush Spring Tension Test
Figure 15b-14 Bearing Inspection
C-SHAPED
STEEL PLATE
SCALE
A
B
