TOYOTA LAND CRUISER 1996 J80 Workshop Manual

PR0058
MatchmarksPR06S−03
Z00753
PR0060
SSTA
PR0061
Z00754
SST
PR−6
−
PROPELLER SHAFT SPIDER BEARING
854
Author: Date:
1996 LAND CRUISER (RM451U)
SPIDER BEARING
REPLACEMENT
NOTICE:
Be careful not to grip the propeller shaft tube too tightly in
the vise as this will cause deformation.
1. REMOVE PROPELLER SHAFT (See page PR−3)
2. PLACE MATCHMARKS ON SHAFT AND YOKE
3. REMOVE SNAP RINGS
(a) Using a brass bar and hammer, slightly tap in the bearing
outer races.
(b) Using 2 screwdrivers, remove the 4 snap rings from the grooves.
4. REMOVE SPIDER BEARINGS
(a) Using SST, push out the bearing from the flange. SST 09332−25010
HINT:
Sufficiently raise the part indicated by A so that it does not come
into contact with the bearing.
(b) Clamp the bearing outer race in a vise and tap off the flange with a hammer.
HINT:
Remove the bearing on the opposite side by the same proce-
dure.
(c) Install the 2 removed bearing outer races to the spider.
(d) Using SST, push out the bearing from the yoke. SST 09332−25010
(e) Clamp the outer bearing race in a vise and tap off the yoke
with a hammer.
HINT:
Remove the bearing on the opposite side in the same proce-
dure.
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Z04247
ColorDrit Mark
Bearing Cup
Drit Mark
Yoke
Q07142
Type A Type B X
610.0 mm (24.016 in.)
Y
545.0 mm (21.457 in.)
X
Y Differential
Side
Z00755
PR0081
Q07338
−
PROPELLER SHAFT SPIDER BEARING
PR−7
855
Author: Date:
1996 LAND CRUISER (RM451U)
5. SELECT SPIDER BEARING
Select the bearing according to whether or not there is a drill
mark on the yoke section.
YokeBearing (T ype A)Bearing (Type B)
w/ drill markw/ color mark (White)w/ color mark (Red)
No drill markNo color markNo color mark
HINT:
At time of the reassemble, there are 2 types of rear propeller
shafts, type A and type B. Referring to the illustration, measure
the distance between the welding points X and Y to identify
which of the 2 types is used for the vehicle.
6. INSTALL SPIDER BEARING
(a) Apply MP grease to a new spider and bearings.
NOTICE:
Be careful not to apply too much grease.
(b) Align the matchmarks on the yoke and flange.
(c) Fit the spider into the yoke.
(d) Using SST, install the bearings on the spider. SST 09332−25010
(e) Using SST, adjust both bearings so that the snap ring grooves are at maximum and equal widths.
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PR0069
PR0031
PR−8
−
PROPELLER SHAFT SPIDER BEARING
856
Author: Date:
1996 LAND CRUISER (RM451U)
7. INSTALL SNAP RINGS
(a) Install 2 new snap rings of equal thickness which will allow
0 − 0.05 mm (0 − 0.0020 in.) axial play.
HINT:
Do not reuse the snap rings. Thickness of snap ring:
Front Propeller Shaft and Rear Propeller Shaft (Type
B)
ColorMarkThickness mm (in.)
−12.100 − 2.150
(0.0827 − 0.0846)
−22.150 − 2.200
(0.0846 − 0.0866)
−32.200 − 2.250
(0.0866 − 0.0886)
Brown−2.250 − 2.300
(0.0886 − 0.0906)
Blue−2.300 − 2.350
(0.0906 − 0.0925)
−62.350 − 2.400
(0.0925 − 0.0945)
−72.400 − 2.450
(0.0945 − 0.0965)
−82.450 − 2.500
(0.0965 − 0.0984)
Rear Propeller Shaft (Type A)
ColorThickness mm (in.)
−2.00 (0.0787)
Brown2.03 (0.0799)
Blue2.06 (0.0811)
−2.09 (0.0823)
(b) Using a hammer, tap the yoke until there is no clearance
between the bearing outer race and snap ring.
8. CHECK SPIDER BEARING (See page PR−4 )
Check that the spider bearing moves smoothly.
Check the spider bearing axial play.
Bearing axial play: Maximum 0.05 mm (0.0020 in.)
HINT:
Install a new spider bearing on the flange side in the pro-
cedure described above.
When replacing the spider bearing, be sure that the
grease fitting assembly hole is facing in the direction
shown in the illustration.
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Q09100
SPIDER GREASE FITTING ASSEMBLY DIRECTION
Front Propeller ShaftThe Figure at left shows the locations of
the grease fittings as seen from the rear.
Sleeve Yoke
No.1No.2
No.1
SPIDER GREASE FITTING ASSEMBLY DIRECTION
Rear Propeller Shaft Sleeve Yoke
Sleeve Yoke No.1
No.2
No.1
Sleeve Yoke The Figure at left shows the locations of
the grease fittings as seen from the
rear.
No.2
No.2
−
PROPELLER SHAFT SPIDER BEARING
PR−9
857
Author: Date:
1996 LAND CRUISER (RM451U)
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RS0OZ−02
−
SUPPLEMENTAL RESTRAINT SYSTEM SRS AIRBAG
RS−1
1100
Author: Date:
1996 LAND CRUISER (RM451U)
SRS AIRBAG
PRECAUTION
NOTICE:
The LAND CRUISER is equipped with an SRS , which comprises a driver airbag \
and a front pas-
senger airbag. Failure to carry out service operations in the correct sequence could cause the
SRS to unexpectedly deploy during servicing, possibly leading to a serio\
us accident. Further,
if a mistake is made in servicing the SRS, it is possible the SRS may fail to\
operate when re-
quired. Before performing servicing (including removal or installation \
of parts, inspection or
replacement), be sure to read the following items carefully, then follow the correct procedure
described in the repair manual.
Malfunction symptoms of the SRS are difficult to confirm, so the DTCs become the mos\
t impor-
tant source of information when troubleshooting. When troubleshooting th\
e SRS, always in-
spect the DTCs before disconnecting the battery.
Even in cases of a minor collision where the SRS does not deploy, the steering wheel pad, front
passenger airbag assembly, and airbag sensor assembly should be inspected (See pages
RS−9 , RS−23 and RS−34 )
Never use SRS parts from another vehicle. When replacing parts, replace them with \
new parts.
Never disassemble and repair the steering wheel pad, front passenger airbag assembly , or air-
bag sensor assembly in order to reuse it.
If the steering wheel pad, front passenger airbag assembly or airbag sen\
sor assembly have
been dropped, or if there are cracks, dents or other defects in the case, br\
acket or connector,
replace them with new ones.
Use a volt/ohmmeter wi th high impedance (10 k Ω/V minimum) for troubleshooting the system’s
electrical circuits.
Information labels are attached to the periphery of the SRS components. Follow the instruc-
tions on the notices.
After work on the SRS is completed, check the SRS warning light (See pa\
ge DI−240).
If the vehicle is equipped with a mobile communication system, refer to the precaution in the
IN section.
CAUTION:
Work must be started after 90 seconds from the time the ignition switch is t\
urned to the ”LOCK”
position and the negative ( −) terminal cable is disconnected from the battery.
(The SRS is equipped with a back− up power source so that if work is started within 90 seconds
of disconnecting the negative ( −) terminal cable of the battery, the SRS may be deployed.)
When the negative (−) terminal cable is disconnected from the battery, the memory of the clock
and audio system will be canceled. So before starting work, make a record o\
f the contents mem-
orized in the audio memory system. When work is finished, reset the audio syst\
ems as they
were before and adjust the clock. To avoid erasing the memory of each memory system, never
use a back−up power supply from outside the vehicle.
Before repairs, remove the airbag sensor if shocks are likely to be applied to the senso\
r during
repairs.
Do not expose the steering wheel pad, front passenger airbag assembly, or airbag sensor as-
sembly directly to hot air or flames.
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RS0P0−01
AB0250Spiral Cable
R13451
RS−2
−
SUPPLEMENTAL RESTRAINT SYSTEM SRS AIRBAG
1996 LAND CRUISER (RM451U)
OPERATION
1. STEERING WHEEL PAD (with AIRBAG)
The inflater and bag of the SRS are stored in the steering wheel
pad and cannot be disassembled. The inflater contains a squib,
igniter charge, gas generant, etc., and inflates the bag when
instructed by the airbag sensor assembly.
2. SPIRAL CABLE (in COMBINATION SWITCH)
A spiral cable is used as an electrical joint from the vehicle body
side to the steering wheel.
3. FRONT PASSENGER AIRBAG ASSEMBLY
The inflater and bag of the SRS are stored in the front passen-
ger airbag assembly and cannot be disassembled.The inflater
contains a squib, igniter charge, gas generant, etc., and inflates
the bag when instructed by the airbag sensor assembly.
4. SRS WARNING LIGHT
The SRS warning light is located on the combination meter. It
goes on to alert the driver of trouble in the system when a mal-
function is detected in the airbag sensor assembly. In normal
operating condition when the ignition switch is turned to the
ACC or ON position, the light goes on for about 6 seconds and
then goes off.
5. AIRBAG SENSOR ASSEMBLY
The airbag sensor assembly is mounted on the floor inside the
console box. The airbag sensor assembly consists of an airbag
sensor, safing sensor, diagnosis circuit and ignition control,
drive circuit, etc.
It receives signals from the airbag sensors and judges whether
the SRS must be activated or not.
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R11937
Airbag Sensor
Assembly
Spiral
Cable
Front Passenger
Airbag Assembly
Steering Wheel
Pad
Instrument Panel
Junction Block Junction
Block No. 1
−
SUPPLEMENTAL RESTRAINT SYSTEM SRS AIRBAG
RS−3
1996 LAND CRUISER (RM451U)
6. SRS CONNECTORS
No.ItemApplication
(1)Terminal Twin−Lock MechanismConnectors 1, 2, 3, 4, 5, 6, 7
(2)Airbag Activation Prevention MechanismConnectors 2, 3, 4
(3)Electrical Connection Check MechanismConnectors 1
(4)Connector Twin −Lock MechanismConnectors 2, 3, 4
(a) All connectors in the SRS are colored yellow to distin-
guish them from other connectors. Connectors having
special functions and specifically designed for the SRS
are used in the locations shown above to ensure high reli-
ability. These connectors use durable gold −plated termi-
nals.
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Z05953
SpacerHousing
Female Male
R10587
 When Connector is Connected
 When Connector is Disconnected
Short Spring Plate Short Spring Plate
Contacting M ale Terninal
Short Spring Plate ON
Housing
Connectors Short Spring PlateSquib
Closed CircuitSquib
Housing
Terminal
RS−4
−
SUPPLEMENTAL RESTRAINT SYSTEM SRS AIRBAG
1996 LAND CRUISER (RM451U)
(1) Terminal Twin −Lock Mechanism
Each connector has a two −piece construction con-
sisting of a housing and a spacer. This design se-
cures the locking of the terminal by two locking de-
vices (the retainer and the lance) to prevent
terminals from coming out.
(2) Airbag Activation Prevention Mechanism
Each conn ector contains a short spr ing plate. When
the connector is disconnected, the short spring
plate automatically connects the power source and
grounding terminals of the squib.
HINT:
The type of connector shown above is used for connectors 2,
3 and 4 in the diagram on the preceding page.
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R13061
 Half Connection 
Comlate Connection
Terminal of Diagnosis Terminal of Diagnosis
Disconnection Detection Pin
−
SUPPLEMENTAL RESTRAINT SYSTEM SRS AIRBAG
RS−5
1996 LAND CRUISER (RM451U)
(3) Electrical Connection Check Mechanism
This mechanism electrically checks if connectors
are connected correctly and completely. The electri-
cal connection check mechanism is designed so
that the disconnection detection pin connects with
the diagnosis terminals when the connector hous-
ing lock is locked.
HINT:
The illustration shows connector 1.
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Z05490
Secondary LockPrimary Lock Lock Lock
Primary Lock Incomplate
(Secondary Lock Prevended) Primary Lock Complate
(Secondary Lock Permitted
Twin−Lock Complated
Z14034
Fig.1
Fig.2 Power Source
SafingSensor Squibs
Airbag
Sensor
RS−6
−
SUPPLEMENTAL RESTRAINT SYSTEM SRS AIRBAG
1996 LAND CRUISER (RM451U)
(4) Connector Twin −Lock Mechanism
With this mechanism connectors (male and female
connectors) are locked by 2 locking devices to in-
crease connection reliability. If the primary lock is in-
complete, ribs interfere and prevent the secondary
lock.
(b) When the vehicle is involved in a frontal collision in the hatched area (Fig. 1) and the shock is larger than the pre-
determined level, the SRS is activated automatically. A
safing sensor is designed to go on at a smaller decelera-
tion rate than the airbag sensor. As illustrated in Fig. 2,
ignition is caused when current flows to the squib, which
happens when a safing sensor and the airbag sensor go
on simultaneously.When a deceleration force acts on the
sensors, two squibs in the driver airbag and front passen-
ger airbag ignite and generate gas. The gas discharging
into the driver airbag and front passenger airbag rapidly
increases the pressure inside the bags, breaking open
the steering wheel pad and instrument panel door.
Bag inflation then ends, and the bags deflate as the gas
is discharged through discharge holes at the bag’s rear or
side.
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