MOTOR (MODEL DA5-4006)
Motor Component Testing and Inspection
Page 16-8
2006 IQ Plus System Electric Vehicle Maintenance and Service Supplement
16
4.1. Place a C-shaped steel plate on a scale.
4.2. Place the end of the C-shaped plate so that it is between the spring and the brush.
4.3. Gently pull the scale to obtain the spring tension reading.
See following CAUTION.
CAUT ION
• When checking brush spring tension, do not over-extend the spring. Using excessive force
will damage the spring.
4.4. Replace springs which require a force of less than 35 oz. (990 grams)
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. Refer to Motor Assembly for brush
installation. See Motor Assembly on page 16-11.
When replacing brushes, replace all four brushes. Never replace only two.
Install the brushes in the same rigging 180° apart from each other.
Brush Inspection
1. Remove the motor from the vehicle.
See Motor Removal, Section 16, Page 16-2.
2. Release the clasp and remove the headband from the motor.
3. Inspect the brushes (16) for damage or excessive wear
. Replace brushes
if required.
See preceding NOTE.
4. Use dial calipers or a micrometer to measure the brush length. The minimum-allowable brush length is
0.62 inches (16 mm). Replace the set of brushes as required.
See preceding NOTE.