Start NISSAN TERRANO 2002 Service Repair Manual

4. Inspect pinion teeth.
IReplace pinion if teeth are worn or damaged. (Also check
condition of ring gear teeth.)
5. Inspect reduction gear teeth.
IReplace reduction gear if teeth are worn of damaged.
(Also check condition of armature shaft gear teeth.)
Brush Check
BRUSH
Check wear of brush.
Wear limit length:
Refer to SDS (SC-30).
IExcessive wear ... Replace.
BRUSH HOLDER
1. Perform insulation test between brush holder (positive side)
and its base (negative side).
IContinuity exists ... Replace.
2. Check brush to see if it moves smoothly.
IIf brush holder is bent, replace it; if sliding surface is dirty,
clean.
Field Coil Check
1. Continuity test (between field coil positive terminal and positive
brushes).
INo continuity ... Replace field coil.
2. Insulation test (between field coil positive terminal and yoke).
IContinuity exists ... Replace field coil.
SEL014Z
YEL549D
YEL550D
SEL103E
STARTING SYSTEM
Pinion/Clutch Check (Cont'd)
SC-20

Armature Check
1. Continuity test (between two segments side by side).
INo continuity ... Replace.
2. Insulation test (between each commutator bar and shaft).
IContinuity exists ... Replace.
3. Check commutator surface.
IRough ... Sand lightly with No. 500-600 emery paper.
4. Check diameter of commutator.
Commutator minimum diameter:
Refer to SDS (SC-30).
ILess than specified value ... Replace.
SEL625B
SEL104E
SEL020Z
SEL021Z
STARTING SYSTEM
SC-21

5. Check depth of insulating mold from commutator surface.
ILess than 0.2 mm (0.008 in) ... Undercut to 0.5 - 0.8 mm
(0.020 - 0.031 in)
Assembly
Carefully observe the following instructions.
GREASE POINT
IRear cover metal
IGear case metal
ICenter bracket metal
IFrictional surface of pinion
IMoving portion of shift lever
IPlunger of magnetic switch
IReduction gear
PINION PROTRUSION LENGTH ADJUSTMENT
Reduction gear type
Compare movement ªº in height of pinion when it is pushed out
with magnetic switch energized and when it is pulled out by hand
until it touches stopper.
Movement ªº:
Refer to SDS (SC-30).
INot in the specified value ... Adjust by adjusting plate.
SEL022Z
SEL497D
SEL573B
STARTING SYSTEM
Armature Check (Cont'd)
SC-22

System Description
The alternator provides DC voltage to operate the vehicle's electrical system and to keep the battery charged.
The voltage output is controlled by the IC regulator.
Power is supplied at all times to alternator terminal 4 (S) through:
I10A fuse (No. 31, located in the fuse and fusible link box).
Terminal B supplies power to charge the battery and operate the vehicle's electrical system. Output voltage
is controlled by the IC regulator at terminal 4 (S) detecting the input voltage (ZD30DDTi engine models). The
charging circuit is protected by the 100A (A/T models) fusible link.
The alternator is grounded to the engine block.
With the ignition switch in the ON or START position, power is supplied
Ithrough 10A fuse [No. 12, located in the fuse block (J/B)]
Ito combination meter terminal 28 for the charge warning lamp.
Ground is supplied to terminal 2 of the combination meter through terminal 1(L) (TD27Ti engine models) or
3(L) (ZD30DDTi engine model) of the alternator. With power and ground supplied, the charge warning lamp
will illuminate. When the alternator is providing sufficient voltage with the engine running, the ground is opened
and the charge warning lamp will go off.
If the charge warning lamp illuminates with the engine running, a malfunction is indicated.
CHARGING SYSTEM
SC-23

Trouble Diagnoses
Before 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.
IBefore starting, inspect the fusible link.
IUse fully charged battery.
WITH IC REGULATOR
NOTE:
IIf the inspection result is OK even though the charging system is malfunctioning, check the B terminal
connection. (Check the tightening torque.)
IWhen field circuit is open, check condition of rotor coil, rotor slip ring and brush. If necessary, replace faulty
parts with new ones.
MALFUNCTION INDICATOR
The IC regulator warning function activates to illuminate ªCHARGEº warning lamp, if any of the following
symptoms occur while alternator is operating:
IExcessive voltage is produced.
INo voltage is produced.
SEL338V
CHARGING SYSTEM
SC-26

Battery
Applied model TD27Ti ZD30DDTi
Type L2-580 R (65 Ah) L2-580 L (65 Ah) L3-760 R (75 Ah) L3-760 L (75 Ah)
Capacity V-AH 12-55 12-64
Starter
TypeS13-327 S13-527B S14-405B
HITACHI make
Applied model TD27Ti ZD30DDTi
System voltage V 12
No-loadTerminal voltage V 11.0
Current A Less than 160
Revolution rpm More than 4,000 More than 3,300 More than 2,700
Minimum diameter of commutator mm (in) 35.5 (1.398) 35.5 (1.398)
Minimum length of brush mm (in) 9.0 (0.354) 11.0 (0.433) 11.0 (0.433)
Brush spring tension N (kg, lb) Ð28.4 - 34.3
(2.9 - 3.5, 6.4 - 7.7)28.4 - 34.3
(2.9 - 3.5, 6.4 - 7.7)
Clearance between bearing metal and armature shaft
mm (in)ÐÐÐ
Clearance ªº between pinion front edge and
pinion stopper mm (in)ÐÐÐ
Movement ªº in height of pinion assembly mm (in)0.3 - 1.5
(0.012 - 0.059)0.3 - 2.0
(0.012 - 0.079)0.3 - 2.0
(0.012 - 0.079)
Alternator
TypeLR190-752 0 123 310 051
HITACHI make BOSCH make
Applied model ZD30DDTi TD27Ti
Nominal rating V-A 12-90 12-70
Ground polarityNegative
Minimum revolutions under no-load (When
13.5V is applied) rpmLess than 1,000 Less than 1,000
Hot output current (When 13.5V is applied)
A/rpmMore than 23/1,300
More than 65/2,500
More than 87/5,000More than 26/1,300
More than 58/2,500
More than 72/5,000
Regulated output voltage V 14.1 - 14.7
Minimum length of brush mm (in) More than 6.0 (0.237) 2 (0.08)
Brush spring pressure N (g, oz) 1.00 - 3.43 (102 - 350, 3.60 - 12.34) 1.80 - 2.40 (184.6 - 244.8, 6.47 - 8.63)
Slip ring minimum diameter mm (in) More than 26.0 (1.024) 13.8 (0.543)
Rotor coil resistance at 20É (68ÉF)W2.67 2.47 - 2.73
SERVICE DATA AND SPECIFICATIONS (SDS)
SC-30

Checking Fluid Leakage
Check the lines for improper attachment and for leaks, cracks,
damage, loose connections, chafing or deterioration.
1. Run engine between idle speed and 1,000 rpm.
Make sure temperature of fluid in oil tank rises to 60 to 80ÉC
(140 to 176ÉF).
2. Turn steering wheel right-to-left several times.
3. Hold steering wheel at each ªlockº position for five seconds and
carefully check for fluid leakage.
CAUTION:
Do not hold the steering wheel in a locked position for more
than 15 seconds.
4. If fluid leakage at connectors is noticed, loosen flare nut and
then retighten.
Do not overtighten connector as this can damage O-ring,
washer and connector.
Bleeding Hydraulic System
1. Raise front end of vehicle until wheels are clear of the ground.
2. Add fluid into oil tank to specified level. Meanwhile quickly turn
steering wheel fully to right and left and lightly touch steering
stoppers.
Repeat steering wheel operation until fluid level no longer
decreases.
3. Start engine.
Repeat step 2 above.
IIncomplete air bleeding will cause the following to occur. When
this happens, bleed air again.
a. Generation of air bubbles in reservoir tank
b. Generation of clicking noise in oil pump
c. Excessive buzzing in oil pump
While the vehicle is stationary or while moving the steering wheel
slowly, fluid noise may occur in the valve or oil pump. This noise is
inherent in this steering system, and it will not affect performance
or durability of the system.
SST621A
ON-VEHICLE SERVICE
ST-5

Checking Steering Wheel Turning Force
1. Park vehicle on a level, dry surface and set parking brake.
2. Start engine.
3. Bring power steering fluid up to adequate operating tempera-
ture.
Temperature:
60É - 80ÉC (140 - 176ÉF)
Tires need to be inflated to normal pressure.
4. Check steering wheel turning force when steering wheel has
been turned 360É from neutral position.
Steering wheel turning force:
39 N (4 kg, 9 lb) or less
IIf steering wheel turning force is not within specification,
perform the following inspection procedure:
E
Measure steering
wheel
turning force
39 N (4 kg, 9 lb) or less.
NG
EOK Test end
Measure preload of the
power steering gear
input shaft.
Refer to ªInspection
and Adjustmentº in
ªPOWER STEERING
GEARº.
NG
EOKCheck oil pump
pressure.
Refer to ªChecking
Hydraulic Systemº in
ªON-VEHICLE
SERVICEº.
NG
EOKCheck ball joints,
swivel joints and
linkage for smooth
operation.
See ªInspectionº in
ªSTEERING LINKAGEº.
NGOK
Adjust preload.Replace oil pump.Replace joints.Replace power
steering gear.
SST108B
H
HHHH
HHHH
ON-VEHICLE SERVICE
ST-6

Checking Hydraulic System
Before starting, check belt tension, driving pulley and tire pressure.
1. Set Tool. Open shut-off valve, then bleed air. (Refer to ªBleed-
ing Hydraulic Systemº, ST-5.)
2. Run engine.
Make sure temperature of fluid in tank rises to 60 to 80ÉC (140
to 176ÉF).
WARNING:
Warm up engine with shut-off valve fully opened. If engine is
started with shut-off valve closed, oil pressure in oil pump will
increase to relief pressure, resulting in an abnormal rise in oil
temperature.
3. Check pressure with steering wheel fully turned to left and right
positions with engine idling at 1,000 rpm.
CAUTION:
Do not hold the steering wheel in a locked position for more
than 15 seconds.
Oil pump maximum standard pressure:
TD27Ti engine
8,800 - 9,200 kPa (88 - 92 bar,
89 - 93 kg/cm
2, 1,276 - 1,334 psi)
ZD30DTi engine
9,800 - 10,500 kPa (98.0 - 105.0 bar,
99.96 - 107.10 kg/cm
2, 1,421 - 1,523 psi)
4. If oil pressure is below the maximum pressure, slowly close
shut-off valve and check pressure.
IWhen pressure reaches maximum pressure, gear is damaged.
IWhen pressure remains below maximum pressure, pump is
damaged.
CAUTION:
Do not close shut-off valve for more than 15 seconds.
5. If oil pressure is higher than maximum pressure, check oil
pump flow control valve.
6. After checking hydraulic system, remove Tool and add fluid if
necessary, then completely bleed air out of system.NST033
ON-VEHICLE SERVICE
ST-7