1998 NISSAN PICK-UP Repair Manual

Removal and Installation
CAUTION:
lStart service operation after removing the negative ter-
minal from the battery.
lAlso remove the undercover, if equipped, before servic-
ing.
Disassembly
REAR COVER
CAUTION:
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 sol-
dering iron.
Do not use a heat gun, as it can damage diode assembly.
REAR BEARING
CAUTION:
lDo not reuse rear bearing after removal. Replace with a
new one.
lDo not lubricate rear bearing outer race.
Inspection
ROTOR CHECK
1. Resistance test
Resistance: Refer to SDS, EL-41.
lNot within the specified values ... Replace rotor.
2. Insulator test
lContinuity exists. ... Replace rotor.
3. Check slip ring for wear.
Slip ring minimum outer diameter:
Refer to SDS, EL-41.
lNot within the specified values ... Replace rotor.
MEL445H
.
SEL032Z
SEL033Z
CHARGING SYSTEM
EL-39

BRUSH CHECK
1. Check smooth movement of brush.
lNot smooth ... Check brush holder and clean.
2. Check brush for wear.
lReplace brush if it is worn down to the limit line.
STATOR CHECK
1. Continuity test
lNo continuity ... Replace stator.
2. Ground test
lContinuity exists. ... Replace stator.
Assembly
RING FITTING IN REAR BEARING
lFix 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.
REAR COVER INSTALLATION
1. 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.
SEL631DA
SEL108E
SEL109E
SEL044Z
SEL048Z
CHARGING SYSTEM
Inspection (Cont'd)
EL-40

Service Data and Specifications (SDS)
ALTERNATOR
TypeLR160-727C LR160-728C
HITACHI
Applied model KA24 TD25
Nominal rating V-A 12-60
Ground polarityNegative
Minimum revolution under no-load
(When 13.5V is applied) rpmLess than 1,000
Hot output current A/rpmMore than 17/1,300
More than 48/2,500
More than 57/5,000
(When 13.5V is applied)
Regulated output voltage V 14.1 - 14.7
Minimum length of brush
mm (in)6.0 (0.236)
Brush spring pressure
N (g, oz)1.0 - 3.4 (102 - 350, 3.60 - 12.34)
Slip ring minimum outer diameter
mm (in)26.0 (1.024)
Rotor (Field coil) resistanceW2.58
SEL049Z
CHARGING SYSTEM
Assembly (Cont'd)
EL-41

Check
FOR EUROPE AND LHD MODELS
HEL320A
COMBINATION SWITCH
EL-42

Replacement
For removal and installation of spiral cable, refer to RS sec-
tion [``Installation Ð Air Bag Module and Spiral Cable'',
``SUPPLEMENTAL RESTRAINT SYSTEM (SRS)''].
lEach switch can be replaced without removing combination
switch base.
lTo remove combination switch base, remove base attaching
screw.
lBefore installing the steering wheel, align the steering wheel
guide pins with the screws which secure the combination
switch as shown in the left figure.
MEL304D
MEL326G
SEL151V
COMBINATION SWITCH
EL-43

Wiring Diagram Ð H/LAMP Ð/LHD Models
HEL898
HEADLAMP Ð Conventional Type Ð
EL-44

HEL321A
HEADLAMP Ð Conventional Type Ð
Wiring Diagram Ð H/LAMP Ð/LHD Models
(Cont'd)
EL-45

Wiring Diagram Ð H/LAMP Ð/RHD Models
HEL900
HEADLAMP Ð Conventional Type Ð
EL-46