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MOTOR (MODEL DA5-4006)
Reconditioning the Motor
2008-2011 IQ Plus Electric Vehicle Maintenance and Service Supplement
Page 16-11
16
RECONDITIONING THE MOTOR
See General Warning, Section 10, Page 10-1.
Motor reconditioning must be performed by a qualified motor repair technician. The use of proper tools and
procedures is absolutely essential for successful motor reconditioning.
Motor Specifications
Any rework must be performed by a qualified technician. Motor service specifications are listed in the follow-
ing table.
MOTOR ASSEMBLY
See General Warning, Section 10, Page 10-1.
1. Replace the bearing.
1.1. Use an arbor press to install a new bearing into the end cap. To help avoid damaging the bearing,
apply pressure only to the outer race when installing the bearing.
1.2. Install the retaining ring to secure the bearing.
2. Install the brushes and brush rigging.
See following NOTE.
NOTE:
When installing new brushes, remove and replace brushes one at a time. This method ensures the
terminals and brushes will be properly positioned in the rigging.
When replacing brushes, replace all eight brushes.
Install the brushes in the same rigging 180° apart from each other.
2.1. Insert the brushes into the brush rigging as shown.
2.2. Insert the two terminal posts through insulators in the end cap (20) wall at the A1 and A2 positions
.
2.3. Place external insulators and washers on each terminal post, and secure terminal with nuts.
Tighten nuts to 100 in-lb (11.3 N·m). Ensure that the terminal posts do not rotate when tightening
the nuts.
2.4. Secure the brush rigging to the end cap with four bolts. Tighten the bolts to 25 in-lb (2.8 N·m).
ITEM
SERVICE LIMIT
Commutator diameter (minimum)
2.80 in. (71.10 mm)
Commutator concentric with
armature shaft within
0.003 in. (0.08 mm)
Bar to bar runout should not
exceed
0.005 in. (0.013 mm)
Undercut of segment insulator
after machining commutator
0.040 in. (1.0 mm)
Armature resistance at
75 °F (24 °C)
0.014 ohms between
bars 1 and 15
Field resistance at
75 °F (24 °C)
0.55 ohms