MOTOR (MODEL EJ4-4001)
Motor
2005 Precedent IQ System Electric Golf Car Maintenance and Service Manual
Page 15b-5
15B
CAUT ION
• Ensure that there is sufficient thread engagement of the end cap bolts before proceeding.
Performing the procedure without having adequate thread engagement could damage the
motor frame, end cap, or end cap bolts.
5.2. Gently tap each bolt, alternating between blows, until the end cap and motor frame become disen-
gaged
(Figure 15b-6, Page 15b-4)
.
6. Remove the two end cap bolts.
7. Remove the end cap and armature from the motor frame
(Figure 15b-7, Page 15b-4)
.
8. Inspect the brush springs for proper tension.
See Motor Brush, Spring, and Terminal Insulator
Inspection on page 15b-8.
9. Remove the armature from the end cap bearing.
See following CAUTION and NOTE.
ý
CAUTION
• Removing the armature from the end cap requires two people: one to operate the press, and
another to hold the armature. Failure to heed this CAUTION could result in personal injury
and/or damage to the armature resulting from an unsupported armature falling after it
becomes disengaged from the end cap bearing.
NOTE: Replacement of the end cap bearing is recommended if the armature is removed.
9.1. Place the end cap in a press with the armature facing down.
9.2. Place a bearing press tool with an outer diameter smaller than that of the armature shaft between
the press ram and the armature shaft
(Figure 15b-8, Page 15b-6)
.
9.3. Have an assistant support the armature while the press is activated.
10. Inspect the armature for wear and damage.
See Armature Inspection and Testing on page 15b-6.
11. Inspect the motor frame and field windings.
See Motor Frame and Field Windings Inspection on
page 15b-8.
12. Remove the brush rigging.
12.1. Mark the brush terminal posts (A1 and A2).
12.2. Remove the two nuts securing the brush terminals (A1 and A2) to the end cap
(Figure 15b-9,
Page 15b-6)
.
12.3. Remove the two screws and the brush rigging to the end cap
(Figure 15b-10, Page 15b-6)
.
13. Inspect the terminal insulators.
See Terminal Insulator Inspection on page 15b-9.
14. Remove the bearing from the end cap.
14.1. Remove the retaining ring that secures the bearing in the end cap
(Figure 15b-11, Page 15b-6)
.
14.2. Use an arbor press to remove the bearing from the end cap.
15. Inspect the bearing for wear and damage.
See Bearing Inspection on page 15b-9.
