Page 1086 of 1399
SA1960
SST
RA1072
Filler Hole
Oil
0 − 5 mm (0 − 0.20 in.)
−
SUSPENSION AND AXLE FRONT DIFFERENTIAL REAR OIL SEAL
SA−23
1996 LAND CRUISER (RM451U)
(c) Apply light coat of gear oil on threads of a new companion
flange nut.
(d) Using SST to hold the flange, torque the nut.
SST 09330−00021
Torque: 196 N·m (2,000 kgf·cm, 145 ft·lbf)
14. ADJUST DRIVE PINION PRELOAD (See page SA−36 )
15. STAKE DRIVE PINION NUT
16. INSTALL FRONT PROPELLER SHAFT (See page PR−5 )
17. FILL DIFFERENTIAL WITH GEAR OIL Torque: 49 N·m (500 kgf·cm, 39 ft·lbf)
Oil type: Hypoid gear oil API GL −5
Recommended oil viscosity:
Above −18°C (0° F) SAE 90
Below −18°C (0° F) SAE 80W−90 or 80W
Capacity:
w/o Differential lock:
2.80 liters (2.9 US qts, 2.5 Imp. qts)
w/ Differential lock:
2.65 liters (2.8 US qts, 2.3 Imp. qts)
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R08154
Matchmark
(Groove)
5
°
108 ° 1.5 V
32
SA2306
SA1992
R08218
−
SUSPENSION AND AXLE FRONT DIFFERENTIAL CARRIER
SA−47
1996 LAND CRUISER (RM451U)
(b) Ensure that the matchmarks of the pinion of the actuator
is in the extent between zero and 5 degrees clockwise
above the center line of the actuator.
If the matchmarks is not in this extent, rotate the pinion to be
matched. Do not supply the battery positive voltage directly be-
tween terminals. If the matchmarks come to the extension limit
of the rotation, do not electrify moreover.
(c) Install a new O−ring to the actuator.
(d) Apply a light coat of gear oil on the O −ring.
(e) Apply MP grease to the gear part.
(f) Insert the actuator so that the long hole on the actuator side fits with the knock pin on the carrier side.
HINT:
Do not damage the O −ring of the actuator.
(g) Align the actuator with the long hole and rotate the actua-
tor counterclockwise when the knock pin reaches the
right−hand side.
(h) Install the actuator to the differential carrier with the bolt so that the outermost rack tooth of the shift fork will fit the
matchmarks of the pinion of the actuator.
Torque: 26 N·m (270 kgf·cm, 20 ft·lbf)
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SA2395
SST
Z06903
SST
Z06904
SST
R13238
SST
SA1966
SST
SA−74
−
SUSPENSION AND AXLE REAR DIFFERENTIAL FRONT OIL SEAL
1996 LAND CRUISER (RM451U)
6. REMOVE BEARING OUTER RACE
Using SST, remove the bearing outer race.
SST 09308−00010
NOTICE:
Do not scratch the taper surface of the outer race.
7. REMOVE BEARING SPACER
8. INSTALL NEW BEARING SPACER
9. INSTALL BEARING OUTER RACE
Using SST, install the bearing outer race. SST 09316−60011 (09316 −00011, 09316−00021)
10. INSTALL FRONT BEARING
11. INSTALL OIL SLINGER AND OIL SEAL
(a) Install the oil slinger.
(b) Using SST, install a new oil seal, as shown. SST 09214−76011
Oil seal drive in depth: 1.0 mm (0.039 in.)
(c) Apply MP grease to the oil seal lip.
12. INSTALL COMPANION FLANGE
(a) Using SST, install the companion flange on the drive pin- ion.
SST 09950−30010 (09951 −03010, 09953−03010,
09954 −03010, 09955 −03030, 09956−03020)
(b) Place the plate washer on the companion flange.
(c) Apply light coat of gear oil on threads of a new companion
flange nut.
(d) Using SST to hold the flange, torque the nut. SST 09330−00021
Torque: 245 N·m (2,500 kgf·cm, 181 ft·lbf)
13. ADJUST DRIVE PINION PRELOAD (See page SA−73 )
14. STAKE DRIVE PINION NUT
15. CONNECT REAR PROPELLER SHAFT (See page PR−5 )
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SA1VL−03
−
SUSPENSION AND AXLE DIFFERENTIAL LOCKING SYSTEM
SA−101
958
Author: Date:
1996 LAND CRUISER (RM451U)
DIFFERENTIAL LOCKING SYSTEM
ON−VEHICLE INSPECTION
1. INSPECT DIFFERENTIAL LOCK SYSTEM
(a) Inspect the indicator lights.
Check that the indicator lights (front side and rear side)
light up for approx. 1 second when the ignition switch is
turned ON.
(b) Inspect the differential lock operation. (1) Jack up the vehicle then start the engine.
(2) Put the transfer shift lever on the L position.
(3) When the Diff. lock control switch is set to the RR
position, the indicator light (rear side) is turned on.
Differential lock is applied to the rear wheel at this
time.
HINT:
If the gears of the differential lock system are not meshed, the
indicator light remains blinking, so rotate the tires to mesh the
gear.
(4) When the Diff. lock control switch is at the OFF posi-
tion, the indicator light goes off.
Differential lock is released for the rear wheel at this
time.
(5) When the Diff. lock control switch is set to the FR/ RR position, the indicator lights (front side and rear
side) are turned on.
Differential lock is applied to both the front wheels
and rear wheels at this time.
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Z07254
M3 M4 M1 M2
Z07255
Wire Harness Side
SA−102
−
SUSPENSION AND AXLE DIFFERENTIAL LOCKING SYSTEM
959
Author: Date:
1996 LAND CRUISER (RM451U)
(6) Check the voltage between the terminals of the Diff.
lock ECU when switching the Diff. lock control
switch with the speedometer, registering approx. 8
km/h (5 mph) or more.
(7) Check that the indicator lights blink when center Diff. lock release mode is set.
Diff. lock is released for both the front wheels and
rear wheels at this time.
(8) Return the Diff. lock control switch to OFF.
(9) Stop the engine and lower the vehicle.
2. INSPECT DIFF. LOCK SYSTEM CIRCUIT
(a) Inspect the system circuit with connector disconnected. Disconnect the connector from the Diff. lock ECU and in-
spect the connector on the wire harness side, as shown
in the chart.
Trouble Part/
Terminals (Symbols)ConditionSpecified V alue
Rear diff. lock actuator/
1 (M2) − 3 (M1)−Less than 100 Ω
Front diff. lock actuator/
5 (M4) − 7 (M1)−Less than 100 Ω
Body ground/
13 (GND) − Body ground−Continuity
Vehicle speed sensor/
4(SPD) − Body groundVehicle moving slowly1 pulse each 40 cm (15.75 in.)
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Z07256
ECU Side
−
SUSPENSION AND AXLE DIFFERENTIAL LOCKING SYSTEM
SA−103
960
Author: Date:
1996 LAND CRUISER (RM451U) DIFF. fuse/
8 (IG) − Body ground
Ignition switch ONBattery positive voltage
Rear diff. lock position switch/
2 (RLP) − Body groundIgnition switch ON,
Indicator light (Rear) ONAbout 0 V
Ignition switch ON,
Indicator light (Rear) OFFBattery positive voltage
Front diff. lock position switch/ 9 (FLP) − Body ground
Ignition switch ON,
Indicator light (front) ON.About 0 V
Ignition switch ON,
Indicator light (front) OFFBattery positive voltage
Center diff. indicator switch/ 15 (4WD) − Body groud
Ignition switch ON,
Indicator light (Center diff. lock) ONAbout 0 V
Ignition switch ON,
Indicator light (Ce nter diff. lock) OFFBattery positive voltage
Differential lock control switch/
12 (R) − Body ground
Ignition switch ON,
Diff. lock control switch RR or FR RRBattery positive voltage
Ignition switch ON,
Diff. lock control switch OFFAbout 0 V
Differential lock control switch/ 6 (RF) − Body ground
Ignition switch ON,
Diff. lock control switch FR RRBattery positive voltage
Ignition switch ON,
Diff. lock control switch OFF or RRAbout 0 V
HINT:
When a signal enters the ECU to LOCK the front dif ferential and
set the rear differential to FREE (when battery positive voltage
is inputted to terminal 6 (RF) of ECU and about 0 V is inputted
to terminal 12 (R)), or a signal to FREE both the front and rear
differentials, the indicator lights keep blinking until the ignition
switch is turned off (Fail−safe function).
If the circuit is not as specified, check and repair or replace the
trouble part shown in the table above.
(b) Inspect the battery positive voltage Battery positive voltage: 10 − 14.5 V
(c) Inspect the system circuit with connector connected (1) Turn the ignition switch to the ON position.
(2) Keep the center Diff. lock condition.
(3) Remove the Diff. lock ECU.
(4) Using a voltmeter, measure the voltage when thedifferential lock control switch is in the position, as
shown below.
Terminals (Symbols)Switch PositionSTD Voltage (V)
15 (4WD) − 13 (GND)−0.5 or less
9 (FLP) − 13 (GND)FR RR0.5 or less
2 (RLP) − 13 (GND)RR or FR RR0.5 or less
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SA1948
21
4
Z07264
Ohmmeter
−
SUSPENSION AND AXLE DIFFERENTIAL LOCKING SYSTEM
SA−105
962
Author: Date:
1996 LAND CRUISER (RM451U)
4. INSPECT DIFF. LOCK CONTROL SWITCH
Inspect the switch continuity between terminals, as shown.
Switch PositionTerminalsSpecified Condition
OFF1 − 2No continuity
1 − 4No continuity
RR1 − 2No continuity
1 − 4Continuity
FR RR1 − 2Continuity
1 − 4Continuity
If continuity is not as specified, replace the switch.
5. INSPECT DIFF. LOCK POSITION SWITCH
(a) Front and Rear:
Inspect the diff. lock position switch.
(1) Check that there is continuity between terminalswhen the switch is pushed (differential connected
position).
(2) Check that there is no continuity when the switch is
free (differential disconnected position).
If operation is not as specified, replace the switch.
(b) Inspect the center diff. indicator switch.
6. INSPECT VEHICLE SPEED SENSOR AND INDICATOR
LIGHT
(a) Inspect the vehicle speed sensor (See page BE−34).
(b) Inspect the indicator light.
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SA1VO−02
Z07259
Outside
Actuator Installation
Hole Shift Fork
R08154
3
2
1.5
50 °
108 °
Matchmark
(Groove)
SA2306
SA2420
−
SUSPENSION AND AXLE DIFFERENTIAL LOCKING SYSTEM
SA−109
1996 LAND CRUISER (RM451U)
INSTALLATION
1. INSTALL FRONT ACTUATOR
(a) Check that the outermost rack tooth of the shift fork is
virtually above the center line of the actuator installation
hole.
(b) Using a dry cell battery, alig n the matchmark on the pinion
with the center line of the actuator.
NOTICE:
If the pinion of the actuator is not in the specified
place, the actuator is difficult to be installed.
Do not supply the battery positive voltage between
terminals.
If the matchmark comes to the extension limit of the
rotation, do not electrify moreover.
(c) Install a new O−ring to the actuator.
(d) Apply a light coat of gear oil on the O −ring.
(e) Apply MP grease to the gear part of the actuator.
(f) Install the actuator to the differential with the 2 nuts and bolt, so that the outermost rack tooth of the shift fork will
fit matchmark of the pinion of the actuator.
HINT:
Do not damage the O −ring of the actuator.
Torque: 26 N·m (270 kgf·cm, 20 ft·lbf)
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