Page 377 of 1399
BR1DA−01
BR−44
−
BRAKE PARKING BRAKE
1996 LAND CRUISER (RM451U)
REASSEMBLY
Reassembly is in the reverse order of disassembly (See
page BR−40 ).
NOTICE:
Apply high temperature grease and lithium soap base gly-
col grease to the parts indicated by the arrows (See page
BR−39 ).
1. ADJUST PARKING BRAKE SHOE CLEARANCE
(a) Disconnect the PKB cable from bellcrank and remove the 2 tension springs.
(b) Loosen the stopper bolt.
(c) Temporarily install the hub nuts.
(d) Remove the hole plug.
(e) Turn the adjuster and expand the shoes until the disc
locks.
(f) Return the adjuster 8 notches.
(g) Install the hole plug.
2. ADJUST BELLCRANK
(a) Pull the bellcrank until all play in the interior linkage is tak-
en up.
(b) Screw in the bellcrank adjusting bolt to where it contacts on the dust seal.
(c) Loosen it one turn, and lock it at that position with the lock nut.
Torque: 5.4 N·m (55 kgf·cm, 48 in.·lbf)
(d) Install the bellcrank spring.
(e) Connect the PKB cable to the bellcrank.
3. BEDDING DOWN PARKING BRAKE SHOES AND
DISC
(a) Drive the vehicle at about 50 km/h (31 mph) on a safe, lev-
el and dry road.
(b) With the parking brake release button pushed in, pull on the lever with 88 N (9 kgf, 19.8 lbf) of force.
(c) Drive the vehicle for about 400 meters (0.25 mile) in this condition.
(d) Repeat this procedure 2 or 3 times.
4. RECHECK AND ADJUST PARKING BRAKE LEVER TRAVEL
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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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BR1DD−01
BR−48−
BRAKE LOAD SENSING PROPORTIONING AND BY− PASS
VALVE (LSP & BV)
1996 LAND CRUISER (RM451U)
REMOVAL
1. DISCONNECT SHACKLE NO.2 FROM BRACKET
(a) Remove the cotter pin.
(b) Remove the nut and disconnect the shackle No.2 from the bracket.
(c) Remove the retainer, 2 cushions and collar.
2. REMOVE LSP & BV ASSEMBLY
(a) Using SST, disconnect the 3 brake lines from the valve body.
SST 09751−36011
(b) Remove the valve bracket and 4 mounting bolts, then re-
move the LSP & BV assembly.
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BR1DE−01
−
BRAKE LOAD SENSING PROPORTIONING AND BY− PASS
VALVE (LSP & BV)BR−49
1996 LAND CRUISER (RM451U)
DISASSEMBLY
1. REMOVE VALVE BRACKET
(a) Remove the nut, bolt and 2 plate washers.
(b) Remove the 2 nuts, bracket and set plate from the valve
body.
2. DISCONNECT SPRING FROM VALVE
Using pliers, remove the clip, and remove the spring from the
valve.
3. REMOVE SHACKLE NO.1 AND NO.2
(a) Remove the bolt and nut, then remove the these parts:
Load sensing spring
2 plate washers
(b) Loosen the 2 nuts, and remove the shackle No.1 from the
shackle No.2.
4. DISASSEMBLE LOAD SENSING SPRING
Disassembly the these parts:
4 bushings
2 collars
2 rubber plates
Load sensing valve boot
Load sensing spring boot
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BR1DF−01
BR−50−
BRAKE LOAD SENSING PROPORTIONING AND BY− PASS
VALVE (LSP & BV)
1996 LAND CRUISER (RM451U)
INSPECTION
INSPECT VALVE PISTON PIN AND LOAD SENSING
SPRING CONTACT SURFACE FOR WEAR Wear limit: 0.7 mm (0.028 in.)
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BR1DH−01
R05477
A
BR−52−
BRAKE LOAD SENSING PROPORTIONING AND BY− PASS
VALVE (LSP & BV)
1996 LAND CRUISER (RM451U)
INSTALLATION
1. INSTALL LSP & BV ASSEMBLY
Install the LSP & BV assembly to the frame with the 4 bolts. Torque: 25 N·m (260 kgf·cm, 19 ft·lbf)
2. CONNECT SHACKLE NO.2 TO BRACKET
(a) Set the dimension A by turning shackle No.2. Initial set: 90 mm (3.54 in.)
(b) Tighten the lock nut. Torque: 25 N·m (250 kgf·cm, 18 ft·lbf)
(c) Install the 2 bushings and collar to the load sensing spring
shackle.
(d) Install the load sensing spring shackle to the shackle bracket with a retainer and nut.
Torque: 13 N·m (130 kgf·cm, 9 ft·lbf)
(e) Install a new cotter pin.
3. CONNECT BRAKE LINES
Using SST, connect the 3 brake lines. SST 09751−36011
Torque: 15 N·m (155 kgf·cm, 11 ft·lbf)
4. SET REAR AXLE LOAD (See page BR−45 )
5. SET VALVE BODY
(a) When pulling down the load sensing spring, confirm that the valve piston moves down smoothly.
(b) Position the valve body so that the valve piston lightly contacts the load sensing spring.
(c) Tighten the 2 valve body mounting nuts. Torque: 13 N·m (130 kgf·cm, 9 ft·lbf)
6. BLEED BRAKE SYSTEM (See page BR−4 )
7. CHECK FLUID LEAKAGE
8. CHECK AND ADJUST LSP & BV FLUID PRESSURE (See page BR−45 )
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BR1DI−01
−
BRAKE ABS ACTUATOR
BR−53
1035
Author: Date:
1996 LAND CRUISER (RM451U)
ABS ACTUATOR
ON−VEHICLE INSPECTION
1. INSPECT BATTERY POSITIVE VOLTAGE
Battery positive voltage: 10 − 14 V
2. DISCONNECT CONNECTORS
(a) Disconnect the connector from the actuator.
(b) Remove the control relay from the actuator bracket.
(c) Disconnect the 2 connectors from the control relay.
3. CONNECT ACTUATOR CHECKER (SST) TO ACTUA-
TOR
(a) Connect the actuator checker (SST) to the actuator, con-
trol relay and body side wire harness through the sub −
wire harness C (SST) and E (SST), as shown.
SST 09990−00150, 09990 −00200, 09990−00210
(b) Connect the red cable of the checker to the battery posi- tive (+) terminal and black cable to the negative ( −) termi-
nal. Connect the black cable of the sub −wire harness to
the battery negative (−) terminal or body ground.
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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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