TOYOTA LAND CRUISER 1996 J80 Workshop Manual

BR1CO−02
BR−18
−
BRAKE BRAKE BOOSTER ASSEMBLY
1996 LAND CRUISER (RM451U)
COMPONENTS
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BR1CP−03
BR3753
−
BRAKE BRAKE BOOSTER ASSEMBLY
BR−19
1996 LAND CRUISER (RM451U)
REMOVAL
1. REMOVE MASTER CYLINDER (See page BR−9 )
2. REMOVE THESE PARTS:
Return spring
Clip and clevis pin
Clevis
Vacuum hose
3. REMOVE BRAKE BOOSTER
(a) Remove the 4 booster installation nuts.
(b) Remove the booster and gasket.
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BR1CQ−01
BR3976
SST
Gasket
R11347
SST
BR−20
−
BRAKE BRAKE BOOSTER ASSEMBLY
1996 LAND CRUISER (RM451U)
INSTALLATION
1. INSTALL BRAKE BOOSTER
(a) Install the booster and a new gasket.
(b) Install the clevis to the operating rod.
(c) Install and torque the booster installation nuts. Torque: 13 N·m (130 kgf·cm, 9 ft·lbf)
(d) Install the clevis pin into the clevis and brake pedal, and
install the clip to the clevis pin.
(e) Install the pedal return spring.
2. ADJUST LENGTH OF BOOSTER PUSH ROD
(a) Install a new gasket on the master cylinder.
(b) Set the SST on the gasket, and lower the pin until its tip slightly touches the piston.
SST 09737−00010
(c) Turn the SST upside down, and set it on the booster. SST 09737−00010
(d) Measure the clearance between the booster push rod and pin head (SST).
Clearance: 0 mm (0 in.)
(e) Adjust the booster push rod length until the push rod light-
ly touches the pin head.
3. INSTALL MASTER CYLINDER (See page BR−9 )
4. CONNECT VACUUM HOSE TO BRAKE BOOSTER
5. FILL BRAKE RESERVOIR WITH BRAKE FLUID AND
BLEED BRAKE SYSTEM (See page BR−4 )
6. CHECK FOR FLUID LEAKAGE
7. CHECK AND ADJUST BRAKE PEDAL (See page BR−6 )
8. DO OPERATIONAL CHECK (See page BR−17 )
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BR1CR−01
−
BRAKE FRONT BRAKE PAD
BR−21
1003
Author: Date:
1996 LAND CRUISER (RM451U)
FRONT BRAKE PAD
COMPONENTS
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BR1CS−04
BR−22
−
BRAKE FRONT BRAKE PAD
1996 LAND CRUISER (RM451U)
REPLACEMENT
1. REMOVE FRONT WHEEL
2. INSPECT PAD LINING THICKNESS
Check the pad thickness and replace pads if not within the
specification. Minimum thickness: 1.0 mm (0.039 in.)
3. REMOVE THESE PARTS:
Clip
2 pins
Anti−rattle spring
2 pads
4 anti−squeal shims
NOTICE:
The anti −rattle spring and clip can be used again provided
that they have sufficient rebound, no deformation, cracks
or wear, and have had all rust, dirt and foreign particles
cleaned off.
4. CHECK DISC THICKNESS AND RUNOUT (See page
BR−27 )
5. INSTALL NEW PADS
NOTICE:
When replacing worn pads, the anti −squeal shims must be
replaced together with the pads.
(a) Draw out a small amount of brake fluid from the reservoir.
(b) Press in the pistons with a hammer handle or an equiva- lent.
HINT:
Always change the pad on one wheel at a time as there
is a possibility of the opposite piston flying out.
If the piston is difficult to push in, loosen the bleeder plug
and push in the piston while letting some brake fluid es-
cape.
(c) Install the 2 anti−squeal shims to new pads.
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−
BRAKE FRONT BRAKE PAD
BR−23
1996 LAND CRUISER (RM451U)
HINT:
Apply disc brake grease to both sides of the inner anti −squeal
shims (See page BR−21 ).
(d) Install the 2 pads.
HINT:
Apply disc brake grease to the caliper indicated by the arrows
(See page BR−33 ).
NOTICE:
Do not allow oil or grease to get on the rubbing face.
6. INSTALL ANTI −RATTLE SPRING AND 2 PINS
7. INSTALL CLIP
8. INSTALL FRONT WHEEL
9. CHECK THAT FLUID LEVEL IS AT MAX LINE
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BR1CT−01
BR−24
−
BRAKE FRONT BRAKE CALIPER
1006
Author: Date:
1996 LAND CRUISER (RM451U)
FRONT BRAKE CALIPER
COMPONENTS
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BR1CU−03
−
BRAKE FRONT BRAKE CALIPER
BR−25
1996 LAND CRUISER (RM451U)
REMOVAL
1. DISCONNECT FLEXIBLE HOSE
(a) Remove the union bolt and 2 gaskets from the caliper,
then disconnect the flexible hose from the caliper.
Torque: 30 N·m (310 kgf·cm, 22 ft·lbf)
(b) Use a container to catch the brake fluid as it drains out.
2. REMOVE CALIPER
Remove the 2 mounting bolts and caliper. Torque: 123 N·m (1,250 kgf·cm, 90 ft·lbf)
3. REMOVE THESE PARTS:
Clip
2 pins
Anti−rattle spring
2 pads
4 anti−squeal shims
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BR1CV−04
BR2008
Z09007
170 mm
(6.70 in.)50 mm
(1.97
in.)
16 mm
(0.63 in.)
BR0213
BR2009
BR−26
−
BRAKE FRONT BRAKE CALIPER
1996 LAND CRUISER (RM451U)
DISASSEMBLY
1. REMOVE CYLINDER BOOT SET RINGS AND BOOTS
Using a screwdriver, remove the 4 cylinder boot set rings and
boots.
2. REMOVE PISTONS FROM CYLINDER
(a) Prepare the wooden plate to hold the pistons.
(b) Place the plate between the pistons and insert a pad at
one side.
(c) Use compressed air to remove the pistons alternately from the cylinder.
CAUTION:
Do not place your fingers in front of the pistons when using
compressed air.
3. REMOVE PISTON SEALS
Using a screwdriver, remove the 4 piston seals from the cylin-
der.
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BR1CX−03
BR0251
−
BRAKE FRONT BRAKE CALIPER
BR−27
1996 LAND CRUISER (RM451U)
INSPECTION
1. MEASURE PAD LINING THICKNESS
Using a ruler, measure the pad lining thickness.
Standard thickness: 9.5 mm (0.374 in.)
Minimum thickness: 1.0 mm (0.039 in.)
Replace the pad if the thickness is less than the minimum (the
1.0 mm slit is no longer visible), or if it shows signs of uneven
wear.
2. MEASURE DISC THICKNESS
Using a micrometer, measure the disc thickness. Standard thickness: 32.0 mm (1.260 in.)
Minimum thickness: 30.0 mm (1.181 in.)
If the disc is scored or worn, or if its thickness is less than the
minimum, repair or replace the disc.
3. MEASURE DISC RUNOUT
Using a dial indicator, measure the disc runout at a position 10
mm (0.39 in.) from the outside edge. Maximum disc runout: 0.15 mm (0.0059 in.)
If the runout is greater than the maximum, replace the disc or
grind it on a ”On−Car” brake lathe.
HINT:
Before measuring the runout, confirm that the front hub bearing
play is within the specification.
4. IF NECESSARY, REPLACE DISC
(a) Remove the front axle hub (See page SA−7).
(b) Remove the disc from the axle hub.
(c) Install a new disc and torque the bolts. Torque: 74 N·m (750 kgf·cm, 54 ft·lbf)
(d) Install the axle hub and adjust the front bearing preload (See page SA−9 ).
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