1996 TOYOTA LAND CRUISER Workshop Manual

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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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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BR1DB−01
−
BRAKE LOAD SENSING PROPORTIONING AND BY− PASS
VALVE (LSP & BV)BR−47
1996 LAND CRUISER (RM451U)
LOAD SENSING PROPORTIONING AND BY −PASS VALVE
(LSP & BV)
COMPONENTS
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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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BR1DG−01
BR0070
−
BRAKE LOAD SENSING PROPORTIONING AND BY− PASS
VALVE (LSP & BV)BR−51
1996 LAND CRUISER (RM451U)
REASSEMBLY
1. ASSEMBLE THESE PARTS TO LOAD SENSING
SPRING:
Load sensing valve boot
Load sensing spring boot
4 bushings
2 rubber plates
2 collars
HINT:
Apply lithium soap base glycol grease to the parts indicated by
the arrrows. Do not mistake the valve side for the shackle side
of the load sensing spring.
2. INSTALL SHACKLE NO.1 AND NO.2 TO LOAD SENS-
ING SPRING
(a) Install the lock nut and shackle No. 1 to the shackle No. 2.
(b) Torque the bolt and nut through the 2 plate washers. Torque: 18 N·m (185 kgf·cm, 13 ft·lbf)
3. INSTALL LOAD SENSING SPRING TO VALVE BODY
Install the load sensing spring assembly to the load sensing
valve with the clip.
4. INSTALL VALVE BRACKET
(a) Install the set plate to the valve assembly through the valve bracket and temporarily tighten the 2 valve body
mounting nuts.
(b) Torque the bolt and nut through the 2 plate washers. Torque: 18 N·m (185 kgf·cm, 13 ft·lbf)
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