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MOTOR (MODEL 5BC59JBS6390)
Motor
2008-2011 IQ System Electric Vehicle Maintenance and Service Supplement
Page 16a-7
16A
BEARING INSPECTION
1. 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
.
2. 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. Do
not remove the bearing from the armature shaft unless it is to be replaced.
BEARING REMOVAL
1. Place the wedge attachment tool (CC P/N 1012812) between the bearing (15) and the armature (17)
. Make sure the wedge attachment tool is supporting the inner race of the
bearing. If a press is not available, secure a bearing puller (CC P/N 1012811) to the bearing and pull the
bearing off of the end of the armature shaft. Support the shaft so it will not drop when the bearing is
removed
. Discard the bearing and speed sensor magnet.
See following
NOTE.
NOTE:
The speed sensor magnet will be pressed off by the bearing when the bearing is removed.
BEARING INSTALLATION
1. Press a new bearing (15) onto the armature
. Use an arbor press that exerts
pressure on the inner race only.
See following NOTE
.
NOTE:
Make sure the bearing retainer (16) is positioned on the armature shaft before the bearing is
pressed onto the armature
.
An arbor with an outside diameter of less than 5/8 inch (16 mm) should be used to press the bear-
ing onto the armature.
2. Install the speed sensor magnet.
See Speed Sensor Magnet Installation on page 16a-9.
Figure 16a-7 Brush Spring Tension Test
Figure 16a-8 Inspect Bearing
0
5
10
15
20
25
30
35
40
45
50
A
B