Mazda 323 1988 Workshop Manual page 378

ALTERNATOR 5
i
8-z;
1 a
(0.315 in) A
'-I-
Wear limit line
Brush
If the brushes are worn almost to or beyond the
limit, replace them.
Brush spring
Measure the force of the brush spring by using a
spring pressure gauge. Replace the spring if the force
is 2.0 N(21Og, 7.4 oz) or less. When making the
measurement, use the spring pressure gauge to push
the brush into the brush holder until the tip projects
2
mm
(0.079
in),
and read the force at that time.
Note
For a new brush the force is 2.9-4.3 N,
(300-4409, 10.6 - 15.6 02).
Bearing
1. Check for abnormal noise, looseness, insufficient
lubrication, etc.
2. Replace the bearing(s) if there is any abnormality.
Rectifier
1. Positive diode
Check for continuity between the diode lead and
the heat sink at the positive side, using an ohm-
meter. Thereshould be continuity only in the direc-
tion from the diode lead to the heat sink.
323
Revised 10187
5-19