1996 TOYOTA LAND CRUISER Front brake

BR1D8−04
BR−40
−
BRAKE PARKING BRAKE
1996 LAND CRUISER (RM451U)
DISASSEMBLY
1. REMOVE REAR WHEEL
2. REMOVE REAR DISC BRAKE ASSEMBLY
(a) Remove the 2 mounting bolts and remove the disc brake assembly.
Torque: 88 N·m (900 kgf·cm, 65 ft·lbf)
(b) Suspend the disc brake assembly securely. Ensure that the hose is not stretched.
3. REMOVE DISC
Place the matchmarks on the disc and rear hub, and remove the
disc.
HINT:
If the disc cannot be removed easily, turn the shoe adjuster until
the wheel turns freely.
4. REMOVE TENSION SPRING
Using needle −nose pliers, remove the tension spring.
5. REMOVE SHOE RETURN SPRINGS
Using SST, remove the shoe return springs. SST 09717−20010
HINT:
Using SST, install the front shoe return spring and then install
the rear return spring. SST 09718−20010
6. REMOVE SHOE STRUT WITH SPRING
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−
BRAKE PARKING BRAKE
BR−41
1996 LAND CRUISER (RM451U)
7. REMOVE REAR SHOE, ADJUSTER AND TENSION
SPRING
(a) Slide out the rear shoe, and remove the rear shoe and ad-
juster.
(b) Remove the 2 shoe hold −down spring cups, spring and
pin.
(c) Remove the lower side tension spring.
8. REMOVE FRONT SHOE
(a) Slide out the front shoe.
(b) Remove the shoe 2 hold −down spring cups, springs and
pin.
(c) Disconnect the parking brake cable from the parking
brake shoe lever.
9. IF NECESSARY, REMOVE AND DISASSEMBLE PARKING BRAKE BELLCRANK ASSEMBLY
(a) Using a screwdriver, remove the C −washer.
(b) Remove the pin and disconnect the parking brake cable No.2 from the bellcrank.
(c) Remove the clip.
(d) Remove the pin and clip, then disconnect the parking
brake cable.
(e) Remove the 2 tension springs.
(f) Remove the 2 bolts and parking brake bellcrank assem- bly.
Torque: 13 N·m (130 kgf·cm, 9 ft·lbf)
(g) Remove the boot from parking brake bellcrank bracket.
(h) Using a screwdriver, remove the C −washer and pin.
(i) Remove the parking brake bellcrank from the bell crank bracket.
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BR1DC−04
R05477
A
−
BRAKE LOAD SENSING PROPORTIONING AND BY− PASS
VALVE (LSP & BV)BR−45
1027
Author: Date:
1996 LAND CRUISER (RM451U)
ON−VEHICLE INSPECTION
1. SET REAR AXLE LOAD
Rear axle load (include vehicle weight):
1,330 kg (2,932 lb)
2. INSTALL LSPV GAUGE (SST) AND BLEED AIR SST 09709−29018
3. RAISE FRONT BRAKE PRESSURE TO 7,845 kPa (80 kgf/cm
2, 1,138 psi) AND CHECK REAR BRAKE PRES-
SURE
Rear brake pressure:
5,984 ± 589 kPa (61 ± 6 kgf/cm
2, 869± 86 psi)
HINT:
The brake pedal should not be depressed twice and/or returned
while setting to the specified pressure. Read the value of rear
pressure 2 seconds a fter adjusting the specified fluid pressure.
4. IF NECESSARY, ADJUST FLUID PRESSURE
(a) Disconnect the No.2 shackle from the shackle bracket.
(b) Adjust the length of the No.2 shackle turning it. Low pressure − Lengthen A.
High pressure − Shorten A
Initial set: 90 mm (3.54 in.)
Adjusting range: 84 − 96 mm (3.31 − 3.78 in.)
HINT:
One turn of the No.2 shackle changes the fluid pressure by
about 98.1 kPa (1.0 kgf/cm
2, 14.2 psi).
(c) In event the pressure cannot be adjusted by No.2 shackle, raise or lower the valve body.
Low pressure − Lower
High pressure − Raise
(d) Torque the 2 nuts. Torque: 13 N·m (130 kgf·cm, 9 ft·lbf)
(e) Adjust the length of the No.2 shackle again.
If it cannot be adjusted, inspect the valve housing.
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BR−46−
BRAKE LOAD SENSING PROPORTIONING AND BY− PASS
VALVE (LSP & BV)
1028
Author: Date:
1996 LAND CRUISER (RM451U)
5. IF NECESSARY, CHECK VALVE BODY
(a) Assemble the valve body in the uppermost position.
HINT:
When the brakes are applied, the piston will move down about
1 mm (0.039 in.). Even at this time, the piston should not make
contact with or move the load sensing spring.
(b) In this position, check the rear brake pressure.
Front brake pressure
kPa (kgf/cm2, psi)
Rear brake pressure kPa (kgf/cm2, psi)
3,434 (35, 498)3,434 (35, 498)
5,396 (55, 783)3,630 − 4,218
(37 − 43, 527 − 612)
9,810 (100, 1,424)4,513 − 5,494
(46 − 56, 655 − 797)
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BR1334
R00326
BR−54
−
BRAKE ABS ACTUATOR
1036
Author: Date:
1996 LAND CRUISER (RM451U)
4. INSPECT BRAKE ACTUATOR OPERATION
(a) Start the engine, and run it at idle.
(b) Turn the selector switch of the actuator checker to
”FRONT RH” position.
(c) Push and hold in the SUB MOTOR switch for a few se- conds.
(d) Depress the brake pedal and hold it until the step (g) is
completed.
(e) Push the POWER switch, and check that the brake pedal
does not go down.
NOTICE:
Do not keep the POWER switch pushed down for more than
10 seconds.
(f) Release the switch, and check that the pedal goes down.
(g) Push and hold in the SUB MOTOR switch for a few se- conds, and check that the pedal returns.
(h) Release the brake pedal.
(i) Push and hold in the SUB MOTOR switch for a few se- conds.
(j) Depress the brake pedal and hold it for about 15 seconds.
As you hold the pedal down, push the SUB MOTOR
switch for a few seconds. Check that the brake pedal
does not pulsate.
(k) Release the brake pedal.
5. INSPECT FOR OTHER WHEELS
(a) Turn the selector switch to ”FRONT LH” position.
(b) Repeating (c) to (j) of the step 4, check the actuator opera-
tion similarly.
(c) Similarly, inspect ”REAR” position.
6. PUSH SUB MOTOR SWITCH
(a) Push and hold in the SUB MOTOR switch for a few se- conds.
(b) Stop the engine.
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BR1DM−02
BR−60
−
BRAKE FRONT SPEED SENSOR
1042
Author: Date:
1996 LAND CRUISER (RM451U)
FRONT SPEED SENSOR
COMPONENTS
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BR1DN−02
−
BRAKE FRONT SPEED SENSOR
BR−61
1996 LAND CRUISER (RM451U)
REMOVAL
HINT:
When replacing the sensor or sensor harness, replace the sen-
sor and sensor harness together as a set.
1. DISCONNECT SPEED SENSOR CONNECTOR
2. REMOVE SPEED SENSOR
(a) Remove the 8 clamp bolts holding the sensor harness
from the axle housing.
(b) Remove the bolt and wire tie holding the sensor harness from the stabilizer bar.
(c) Remove the bolt and 2 clips holding the sensor harness
from the frame and body.
(d) Remove the 2 installation bolts and speed sensors from the steering knuckle.
Torque: 18 N·m (185 kgf·cm, 13 ft·lbf)
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R05035
BR1NR−01
Z04921
W00552
R13587
R04759
BR−62
−
BRAKE FRONT SPEED SENSOR
1996 LAND CRUISER (RM451U)
INSPECTION
1. INSPECT SPEED SENSOR
(a) Disconnect the speed sensor connector.
(b) Measure the resistance between terminals FR+ and FR −,
and FL+ and FL−.
Resistance: 0.5 − 1.6 kΩ
If resistance value is not specified, replace the sensor.
(c) Check there is no continuity between each terminal and sensor body.
If there is continuity, replace the sensor.
(d) Connect the speed sensor connector.
2. INSPECT SENSOR INSTALLATION
Check the sensor installation bolt is tightened properly and
there is no clearance between the sensor and axle end.
If not, tighten the bolt. Torque: 18 N·m (185 kgf·cm, 13 ft·lbf)
3. VISUALLY INSPECT SENSOR ROTOR SERRATIONS
(a) Remove the axle hub with disc (See page SA−67).
(b) Inspect the sensor rotor serrations for scratches, cracks,
warping or missing teeth.
(c) Install the axle hub with disc SA−9 ).
NOTICE:
To prevent damage to the serrations, do not strike the axle
hub.
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