Page 310 of 801

YH4
GRAND
VITARA
5A-16 BRAKES PIPE / HOSE / MASTER CYLINDER
1. Clevis
2. Nut
1. Steering column 4. Clevis pin
2. Push rod clevis 5. Clip
3. Brake pedal arm 6. NutBOOSTER PUSH ROD CLEVIS ADJUSTMENT
Install push rod clevis so that measurement ªaº is obtained and
torque nut to specification.
Tightening Torque
(a): 25 N
.m (2.5 kg-m, 18.0 lb-ft)
Length
ªaº: 109.5 ± 110.5 mm (4.31 ± 4.35 in.)
INSTALLATION
NOTE:
See NOTE at the beginning of this section.
Check length of push rod clevis. (Refer to BOOSTER PUSH
ROD CLEVIS ADJUSTMENT.)
Before installing master cylinder, adjust booster piston rod.
(Refer to CLEARANCE BETWEEN BOOSTER PISTON ROD
AND MASTER CYLINDER PISTON ADJUSTMENT of this sec-
tion.)
Apply silicone grease to master cylinder piston.
1) Install booster to dash panel as shown. Then connect booster
push rod clevis to pedal arm with clevis pin and clip.
2) Tighten booster attaching nuts to the specified torque.
Tightening Torque
(a): 13 N
.m (1.3 kg-m, 9.5 lb-ft)
3) Connect brake vacuum hose to brake booster.
4) For vehicle equipped with ABS, connect brake pipes to ABS hy-
draulic unit. If ABS hydraulic unit bracket bolts removed, tighten
flare nuts to specification after installing master cylinder.
Tightening Torque
(a): 16 N
.m (1.6 kg-m, 12.0 lb-ft)
5) Install master cylinder, referring to MASTER CYLINDER AS-
SEMBLY INSTALLATION in this section.
Page 311 of 801
YH4
GRAND
VITARA
1. LSPV
2. Brake pipe
1. LSPV assembly
2. LSPV spring
3. LSPV stay
4. Bolt
5. Stepper bole
BRAKES PIPE / HOSE / MASTER CYLINDER 5A-17
LSPV (Load Sensing Proportioning Valve)
ASSEMBLY (if equipped)
REMOVAL
1) Clean around reservoir cap and take out fluid with syringe or
such.
2) Hoist vehicle.
3) Disconnect brake pipes from LSPV.
4) Remove LSPV assembly with spring from vehicle body.
5) Remove spring from lever.
CAUTION:
LSPV assembly must not be disassembled.
Replace with new one if defective.
Stopper bolt should not be loosened or tightened. (if
equipped)
INSTALLATION
CAUTION:
Refer to above CAUTION.
Install by reversing removal procedure, noting the following.
1) Apply multi-purpose grease ªAº to upper and lower joint of coil
spring.
Page 312 of 801

YH4
GRAND
VITARA
5A-18 BRAKES PIPE / HOSE / MASTER CYLINDER
1. LSPV spring bolt
2. LSPV bolt
3. Brake pipe flare nut
4. Air bleeding plug
1. LSPV lever
2. Stopper bolt (if equipped)
3. Coil spring ªAº: Don't turn(a)
2) Torque each bolt and nut to specification as indicated respec-
tively in figure.
Tightening Torque
(a): 23 N
.m (2.3 kg-m, 17.0 lb-ft)
(b): 16 N
.m (1.6 kg-m, 11.5 lb-ft) (brake flare nut)
(c): 7.5 N
.m (0.75 kg-m, 9.0 lb-ft) (bleeder plug)
3) Upon completion of installation, fill reservoir tank with specified
fluid and bleed air from brake system.
NOTE:
Make sure to bleed air from LSPV bleeder without failure.
4) After bleeding air, check that LSPV is installed properly, referring
to following INSPECTION & ADJUSTMENT.
INSPECTION & ADJUSTMENT
Confirm the following before inspection and adjustment.
Fuel tank is filled with fuel fully.
Vehicle is equipped with spare tire, tools, jack and jack handle.
Vehicle is free from any other load.
With vehicle in above conditions;
1) Place it on level floor.
2) Push up (for 5 door model) or push down (for 3 door model)
LSPV lever with finger till it stops and measure length ªLº of coil
spring as it is pulled.
3) Spring length ªLº should be the value specified below.
Spring length (between spring end and spring bolt)
ªLº: 103 mm (4.06 in.) (5 door model). . . . .
ªLº: 157 mm (6.18 in.) (3 door model). . . . .
4) If it isn't, adjust it to specification by changing stay positions as
shown in figure. After adjustment, tighten bolt to specified
torque.
For details, refer to left figure.
Tightening Torque
(a): 23 N
.m (2.3 kg-m, 17.0 lb-ft)
NOTE:
Check to make sure that LSPV body and brake pipe joints
are free from fluid leakage. Replace defective parts, if any.
Page 318 of 801
YH4
GRAND
VITARA
1. Clips
2. Pads
3. Disc
4. Caliper carrier
5. Sensor
6. Shim
1. Caliper pin bolts
ELECTRIC brake
caliper
FRONT BRAKE 5B-5
INSTALLATION
NOTE:
See NOTE at the beginning of this section.
1) Install pad clips and pads.
NOTE:
Install pad with sensor to body center side of caliper.
2) Install caliper and torque caliper pin bolts to specification.
Tightening Torque
(a), (b): 27 N
.m (2.7 kg-m, 20.0 lb-ft) For TOKICO brake. .
caliper
(a): 50 N
.m (5.0 kg-m, 36.5 lb-ft) For SUMITOMO. . . . . .
(b): 85 N
.m (8.5 kg-m, 61.5 lb-ft)
NOTE:
Make sure that boots are fit into groove securely.
3) Torque front wheel nuts to specification.
Tightening Torque
(b): 100 N
.m (10.0 kg-m, 72.5 lb-ft)
4) Upon completion of installation, perform brake test.
Page 320 of 801

YH4
GRAND
VITARA
FRONT BRAKE 5B-7
2) Remove piston seal using a thin blade like a thickness gauge,
etc.
CAUTION:
Be careful not to damage inside (bore side) of cylinder.
INSPECTION
Cylinder Boot
Check boots for breakage, crack and damage. If defective, replace.
Piston Seal
Excessive or uneven wear of pad lining may indicate unsmooth re-
turn of the piston. In such a case, replace rubber seal.
ASSEMBLY
Reassemble front brake in reverse order of disassembly, noting the
following points.
CAUTION:
Wash each part cleanly before installation in the same
fluid as the one used in master cylinder reservoir.
Never use other fluid or thinner.
Before installing piston and piston seal to cylinder, apply
fluid to them.
After reassembling brake lines, bleed air from them.
Piston Seal
Piston seal is used to seal piston and cylinder and to adjust clear-
ance between pad and disc. Replace with a new one at every over-
haul. Fit piston seal into groove in cylinder taking care not to twist
it.
Page 321 of 801
YH4
GRAND
VITARA
1. Boot
2. Piston
5B-8 FRONT BRAKE
Piston and Boot
1) Before inserting piston into cylinder, install boot onto piston as
shown.
2) Fit boot as it is in above figure into boot groove in cylinder with
fingers.
Check to make sure that boot is fitted into boot groove in cylinder
completely in its circumference.
3) Insert piston into cylinder by hand and fit boot in boot groove in
piston.
4) To confirm that boot is fitted in its groove in cylinder properly, pull
piston out of cylinder a little but do not take it all out.
5) Insert piston into cylinder by hand.
6) Install anti noise shim, if equipped.
Page 322 of 801

YH4
GRAND
VITARA
1. Caliper pin bolts
1. Flexible hose bolt
FRONT BRAKE 5B-9
Caliper
Before installing caliper (cylinder body) to carrier, check to ensure
that guide pin (pin bolt) inserted in each caliper carrier hole can be
moved smoothly in thrust direction.
NOTE:
Where temperature gets as low as ±30C in cold weather, use
rubber grease whose viscosity varies very little even at ±40C
(±40F).
INSTALLATION
1) Install caliper to caliper carrier.
2) Torque caliper pin bolts to specifications.
Tightening Torque
(a), (b): 27 N
.m (2.7 kg-m, 20.0 lb-ft) For TOKICO brake. .
caliper
(a): 50 N
.m (5.0 kg-m, 36.5 lb-ft) For SUMITOMO. . . . .
(b): 85 N.m (8.5 kg-m, 61.5 lb-ft) ELECTRIC brake
85 N.m (8.5 kg-m, 61.5 lb-ft)caliper
NOTE:
Make sure that boots are fit into groove securely.
3) Install brake flexible hose as shown and torque hose mounting
bolt to specification.
Tightening Torque
(b): 23 N
.m (2.3 kg-m, 17.0 lb-ft)
4) Torque wheel nuts to specification.
Tightening Torque
(c): 100 N
.m (10.0 kg-m, 72.5 lb-ft)
5) After completing installation, fill reservoir with brake fluid and
bleed brake system. Perform brake test and check each
installed part for oil leakage.
Page 323 of 801
YH4
GRAND
VITARA
1. 8 mm bolt
5B-10 FRONT BRAKE
FRONT BRAKE DISC
REMOVAL
1) Hoist vehicle and remove wheel.
2) Remove caliper assembly by loosening carrier bolts (2 pcs.).
CAUTION:
During removal, be careful not to damage brake flexible
hose and not to depress brake pedal.
3) Remove disc by using 8 mm bolts (2 pcs.).
INSPECTION
Refer to FRONT DISC BRAKE PAD INSPECTION.
INSTALLATION
NOTE:
See NOTE at the beginning of this section.
1) Install disc to wheel hub.
2) Install caliper assembly to steering knuckle.
3) Torque caliper carrier bolts to specification.
Tightening Torque
(a): 85 N
.m (8.5 kg-m, 61.5 lb-ft)
4) Torque front wheel nuts to specifications.
Tightening Torque
(b): 100 N
.m (10.0 kg-m, 72.5 lb-ft)
5) Upon completion of installation, perform brake test.