1999 SUZUKI GRAND VITARA Section 8f

YH4
GRAND
VITARA
5A-4 BRAKES PIPE / HOSE / MASTER CYLINDER
DIAGNOSIS
Refer to Section 5 (BRAKES)
CHECK AND ADJUSTMENT
Refer to Section 5 (BRAKES)
ON-VEHICLE SERVICE
FRONT BRAKE HOSE / PIPE
REMOVAL
1) Raise and suitably support vehicle. Remove tire and wheel.
This operation is not necessary when removing pipes connecting master cylinder and flexible hose.
2) Clean dirt and foreign material from both hose end or pipe end fittings. Remove brake hose or pipe.
INSTALLATION
1) Reverse removal procedure for brake hose and pipe installation procedure.
For installation, make sure that steering wheel is in straightforward position and hose has no twist or kink. Check
to make sure that hose doesn't contact any part of suspension, both in extreme right and extreme left turn condi-
tions. If it does at any point, remove and correct. Fill and maintain brake fluid level in reservoir. Bleed brake sys-
tem.
2) Perform brake test and check installed part for fluid leakage.

YH4
GRAND
VITARA
1. Reservoir
2. Pin
1. Reservoir
2. Cap
BRAKES PIPE / HOSE / MASTER CYLINDER 5A-9
INSTALLATION
NOTE:
See NOTE at the beginning of this section.
1) When using new grommets, lubricate them with the same fluid
as the one to fill reservoir with. Then press-fit grommets to mas-
ter cylinder. Grommets must be seated in place.
2) Install reservoir and drive in reservoir pin.
NOTE:
Drive in reservoir pin till both of its ends at the right and left
or reservoir becomes the same length.
3) Connect reservoir lead wire.
4) Fill reservoir with specified fluid.
5) Upon completion of installation, check for fluid leakage.

YH4
GRAND
VITARA
5A-12 BRAKES PIPE / HOSE / MASTER CYLINDER
Vehicle not equipped with ABSVehicle equipped with ABS
1. Rod
2. Circlip
INSPECTION
Inspect all disassembled parts for wear or damage, and replace
parts if necessary.
NOTE:

Wash disassembled parts with brake fluid.

Do not reuse piston cups.
Inspect master cylinder bore for scoring or corrosion. It is best to re-
place corroded cylinder.
Corrosion can be identified as pits or excessive roughness.
NOTE:
Polishing bore or master cylinder with cast aluminum body
with anything abrasive is prohibited, as damage to cylinder
bore may occur.
Rinse cylinder in clean brake fluid. Shake excess rinsing fluid from
cylinder. Do not use a cloth to dry cylinder, as lint from cloth cannot
be kept from cylinder bore surfaces.
ASSEMBLY
NOTE:

See NOTE at the beginning of this section.

Before assembling, wash each part in fluid recommended to
use for that vehicle.
1) Install secondary piston assembly into cylinder.
2) Install primary piston assembly in cylinder.
3) Depress, and install circlip.
4) Install piston stopper bolt with pistons pushed in all the way and
tighten it to specified torque (For vehicle without ABS).
Tightening Torque
(a): 10 N
.m (1.0 kg-m, 7.5 lb-ft)

YH4
GRAND
VITARA
1. Pin
2. Reservoir
3. Master cylinder
BRAKES PIPE / HOSE / MASTER CYLINDER 5A-13
5) Apply thin coat of brake fluid to all around new grommets (2pcs.)
and install them to cylinder body, then install reservoir.
6) Set a new pin in reservoir hole and drive it in. At this time, make
end of pin and end face margin of reservoir equal.
INSTALLATION
NOTE:

See NOTE at the beginning of this section.

Adjust clearance between booster piston rod and primary
piston with special tool, referring to CLEARANCE BETWEEN
BOOSTER PISTON AND MASTER CYLINDER PISTON AD-
JUSTMENT in this section.
1) Install master cylinder to brake booster.
2) Tighten master cylinder attaching nuts to specification.
Tightening Torque
(a): 13 N
.m (1.3 kg-m, 9.5 lb-ft)
3) Connect brake pipes to master cylinder.

For vehicle with ABS
a) Connect brake pipes between master cylinder and ABS hy-
draulic unit.
b) For LH steering vehicle, connect ABS control module con-
nector.
c) For RH steering vehicle, install ABS hydraulic unit bracket
bolts and tighten it to specified torque.
Tightening Torque
(b): 10 N
.m (1.0 kg-m, 7.5 lb-ft)
4) Tighten flare nuts to specification.
Tightening Torque
(c): 16 N
.m (1.6 kg-m, 12.0 lb-ft)
5) Connect reservoir lead wire.
6) Fill reservoir with specified brake fluid.
7) Check brake pedal play and bleed air from system.
8) Perform brake test and check each installed part for fluid leak-
age.

YH4
GRAND
VITARA
5
1
6
4
2
6
3
6
1. Brake master cylinder ass'y
2. Brake booster ass'y
3. Gasket
4. Push rod clevis
5. Nut
6. Clevis pin
7. Clip
8. Nut
9. Brake vacuum hose
1. Steering column
2. Push rod clevis
3. Brake pedal arm
4. Clevis pin
5. Clip
6. Nut
1. ABS hydraulic
unit
2. Brake pipes
5A-14 BRAKES PIPE / HOSE / MASTER CYLINDER
BRAKE BOOSTER
REMOVAL
NOTE:
Do not allow brake fluid to get on painted surfaces.
1) For vehicle equipped with ABS, disconnect brake pipes from
ABS hydraulic unit.
2) Remove master cylinder assembly, referring to MASTER CYL-
INDER ASSEMBLY REMOVAL in this section.
3) Disconnect brake vacuum hose from brake booster.
4) Disconnect push rod clevis from brake pedal arm.
5) Remove attaching nuts and then booster as shown.
CAUTION:
Never disassemble brake booster. Disassembly will spoil
its original function. If it is found faulty, replace it with
new one.

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.

YH4
GRAND
VITARA
5B
FRONT BRAKE 5B-1
SECTION 5B
FRONT BRAKE
NOTE:
All brake fasteners are important attaching parts in that they could affect the performance of vital parts
and systems, and / or could result in major repair expense. They must be replaced with one of same part
number or with an equivalent part if replacement becomes necessary. Do not use a replacement part of
lesser quality or substitute design. Torque values must be used as specified during reassembly to assure
proper retention of all parts. There is to be no welding as it may result in extensive damage and weakening
of the metal.
CONTENTS
GENERAL DESCRIPTION5B- 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DIAGNOSIS5B- 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECK AND ADJUSTMENT5B- 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ON-VEHICLE SERVICE5B- 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Disc Brake Pad5B- 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Disc Brake Caliper5B- 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Brake Disc5B-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TIGHTENING TORQUE SPECIFICATIONS5B-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REQUIRED SERVICE MATERIAL5B-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

YH4
GRAND
VITARA
1. Caliper
2. Caliper pin bolts
3. Disc
1. Caliper
2. Wire hook
3. Pad
FRONT BRAKE 5B-3
DIAGNOSIS
Refer to Section 5 (BRAKES).
CHECK AND ADJUSTMENT
Refer to Section 5 (BRAKES).
ON-VEHICLE SERVICE
FRONT DISC BRAKE PAD
REMOVAL
1) Hoist vehicle and remove wheel.
2) Remove caliper pin bolts.
3) Remove E-ring from strut and then remove caliper from caliper
carrier.
NOTE:
Hang removed caliper with a wire hook or the like so as to
prevent brake hose from bending and twisting excessively
or being pulled. Don't operate brake pedal with pads re-
moved.
4) Remove pads.
INSPECTION
Brake Pad
Check pad lining for wear. When wear exceeds limit, replace with
new one.
CAUTION:
Never polish pad lining with sandpaper. If lining is polished
with sandpaper, hard particles of sandpaper will be depos-
ited in lining and may damage disc. When pad lining re-
quires correction, replace it with a new one.
Pad thickness (lining + rim) ªaº
Standard: 15.0 mm (0.590 in.) For SUMITOMO ELECTRIC. . .
brake calliper
15.5 mm (0.610 in.) For TOKICO brake caliper. . .
Service limit: 7.0 mm (0.275 in.) For SUMITOMO ELECTRIC. .
brake caliper
7.5 mm (0.295 in.) For TOKICO brake caliper. .
NOTE:
When pads are removed, visually inspect caliper for brake
fluid leak. Correct leaky point, if any.