charging NISSAN ALMERA 2001 Owner's Guide

Trouble DiagnosesNJSC0011Before conducting an alternator test, make sure that the battery is fully charged. A 30-volt voltmeter and suit-
able test probes are necessary for the test. The alternator can be checked easily by referring to the Inspec-
tion Table.
+Before starting, inspect the fusible link.
+Use fully charged battery.
WITH IC REGULATORNJSC0011S01
SEL338V
NOTE:
+If the inspection result is OK even though the charging system is malfunctioning, check the B terminal
connection. (Check the tightening torque.)
+When field circuit is open, check condition of rotor coil, rotor slip ring and brush. If necessary, replace faulty
parts with new ones.
MALFUNCTION INDICATORNJSC0011S02The IC regulator warning function activates to illuminate ªCHARGEº warning lamp, if any of the following
symptoms occur while alternator is operating:
+Excessive voltage is produced.
+No voltage is produced.
CHARGING SYSTEM
Trouble Diagnoses
SC-30

ConstructionNJSC0012
MEL480HB
MEL141LC
CHARGING SYSTEM
Construction
SC-31

MEL141LA
MEL142L
CHARGING SYSTEM
Construction (Cont'd)
SC-32

MEL143LA
MEL144L
CHARGING SYSTEM
Construction (Cont'd)
SC-33

MEL497L
MEL145L
Removal and InstallationNJSC0013REMOVAL (QG ENGINE)NJSC0013S011. Loosen drive belt idler pulley.
2. Remove drive belt idler pulley (include tightening screw).
3. Remove alternator harness.
4. Remove alternator upper bolt and lower bolt.
5. Remove alternator.
MEL948N
REMOVAL (YD ENGINE)NJSC0013S031. Remove alternator harness.
2. Loosen alternator upper nut and lower bolt.
3. Loosen drive belt.
4. Remove alternator bracket bolts (two).
5. Remove alternator upper nut and lower bolt.
6. Remove alternator.
CHARGING SYSTEM
Construction (Cont'd)
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INSTALLATIONNJSC0013S02To install, reverse the removal procedure.
SEL032Z
DisassemblyNJSC0021REAR COVERNJSC0021S01CAUTION:
Rear cover may be hard to remove because a ring is used to
lock outer race of rear bearing. To facilitate removal of rear
cover, heat just bearing box section with a 200W soldering
iron.
Do not use a heat gun, as it can damage diode assembly.
REAR BEARINGNJSC0021S02CAUTION:
+Do not reuse rear bearing after removal. Replace with a
new one.
+Do not lubricate rear bearing outer race.
SEL033Z
InspectionNJSC0022ROTOR CHECKNJSC0022S011. Resistance test
Resistance: Refer to SDS (SC-39).
+Not within the specified values ... Replace rotor.
2. Insulator test
+Continuity exists ... Replace rotor.
3. Check slip ring for wear.
Slip ring minimum outer diameter:
Refer to SDS (SC-39).
+Not within the specified values ... Replace rotor.
CHARGING SYSTEM
Removal and Installation (Cont'd)
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SEL034Z
BRUSH CHECKNJSC0022S021. Check smooth movement of brush.
+Not smooth ... Check brush holder and clean.
2. Check brush for wear.
+Replace brush if it is worn down to the limit line.
SEL037Z
STATOR CHECKNJSC0022S031. Continuity test
+No continuity ... Replace stator.
2. Ground test
+Continuity exists ... Replace stator.
SEL044Z
AssemblyNJSC0023RING FITTING IN REAR BEARINGNJSC0023S01+Fix ring into groove in rear bearing so that it is as close to the
adjacent area as possible.
CAUTION:
Do not reuse rear bearing after removal.
CHARGING SYSTEM
Inspection (Cont'd)
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SEL048Z
SEL049Z
REAR COVER INSTALLATIONNJSC0023S021. Fit brush assembly, diode assembly, regulator assembly and
stator.
2. Push brushes up with fingers and install them to rotor.
Take care not to damage slip ring sliding surface.
CHARGING SYSTEM
Assembly (Cont'd)
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