2001 SUZUKI GRAND VITARA brake

5A-2 BRAKES PIPE/HOSE/MASTER CYLINDER
General Description
Master Cylinder Assembly
The master cylinder has two pistons and three piston cups. Its hydraulic pressure is produced in the primary (“a”
in the figure below) and secondary (“b”) chambers. The hydraulic pressure produced in the primary chamber
(“a”) acts on the rear wheel brakes.
Also, the hydraulic pressure produced in the secondary chamber (“b”) acts on the front wheel brakes.
WARNING:
Brake master cylinder cannot be disassembled. When anything faulty is found in it, it must be
replaced as an assembly.
CAUTION:
Brake master cylinder cannot be disassembled in principle. Should primary piston have come off
from cylinder while dismounting or handling it, wash it in the same specified fluid as that in reservoir
and place it back in cylinder.
1. Piston cup 4. Sleeve 7. Secondary piston return spring
2. Primary piston 5. Ring guide 8. O-ring
3. Secondary piston 6. Primary piston return spring 9. Master cylinder body

BRAKES PIPE/HOSE/MASTER CYLINDER 5A-3
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 conditions. If it does at any point, remove and correct. Fill and maintain brake fluid level in reservoir.
Bleed brake system.
2) Perform brake test and check installed part for fluid leakage.
Tightening torque
Brake pipe flare nut (a) : 16 N·m (1.6 kg-m, 12.0 lb-ft)
Brake flexible hose bolt (brake caliper/2 joint) (b) : 23 N·m (2.3 kg-m, 17.0 lb-ft)
2-way joint mounting bolt (c) : 10 N·m (1.0 kg-m, 7.5 lb-ft)
Brake hose/pipe bracket bolt (c) : 10 N·m (1.0 kg-m, 7.5 lb-ft)
ABS actuator bracket bolt (c) : 10 N·m (1.0 kg-m, 7.5 lb-ft)
ABS actuator mounting bolt (d) : 9 N·m (0.9 kg-m, 6.5 lb-ft)
NOTE:
Insert E-ring till its end surface is flush with or lower than bracket end surface.

5A-4 BRAKES PIPE/HOSE/MASTER CYLINDER
For RH steering vehicle
[D]: View D 1. E-ring
[a]: Clamp a 2. Flexible hose
[b]: Clamp b 3. Hose washer
[c]: Clamp d 4. Hose bolt
T: Top side 5. Brake caliper
F: Front side 6. 2 way joint

BRAKES PIPE/HOSE/MASTER CYLINDER 5A-5
For LH steering vehicle
[D]: View D 1. E-ring
[a]: Clamp a 2. Flexible hose
[b]: Clamp b 3. Hose washer
[d]: Clamp d 4. Hose bolt
T: Top side 5. Brake caliper
F: Front side 6. 2 way joint

5A-6 BRAKES PIPE/HOSE/MASTER CYLINDER
Master Cylinder Reservoir
REMOVAL
1) Disconnect reservoir lead wire at coupler.
2) Clean outside of reservoir (1).
3) Take out fluid with syringe or such.
4) Remove reservoir stopper (3).
5) Remove reservoir (1).
INSTALLATION
1) When using new grommets, lubricate them with the same
fluid as the one to fill reservoir (1) with. Then press-fit grom-
mets to master cylinder (2). Grommets must be seated in
place.
2) Install reservoir (1) and then insert stopper (3).
3) Connect reservoir lead wire.
4) Fill reservoir (1) with specified fluid.
5) Upon completion of installation, check for fluid leakage.
2. Master cylinder
1
3
2
NOTE:
Do not allow brake fluid to get on painted surfaces.
2. Stopper
3. Grommets
3
31
2
NOTE:
See NOTE at the beginning of this section.
1
3
2

BRAKES PIPE/HOSE/MASTER CYLINDER 5A-7
Master Cylinder Assembly
REMOVAL
1) Disconnect reservoir lead wire (1) at coupler.
2) Clean around reservoir cap (2) and take out fluid with
syringe or such.
3) Disconnect brake pipes from master cylinder (3) and ABS
actuator (4).
INSPECTION
Inspect distance “A” to be the following.
Distance “A” :
57.4 mm (2.26 in) or more
If measurement is out of above specification, replace master cyl-
inder assembly.
INSTALLATION
1) Install master cylinder to brake booster.
2) Tighten master cylinder attaching nuts to specified torque.
Tightening torque
Master cylinder attaching nut (b) :
13 N·m (1.3 kg-m, 9.5 lb-ft)
3) Connect hydraulic lines to master cylinder and ABS actuator
and tighten flare nuts to specified torque.
Tightening torque
Brake pipe flare nut (c) : 16 N·m (1.6 kg-m, 12.0 lb-ft)
4) Connect reservoir lead wire (1).
5) Fill reservoir with specified brake fluid.
6) After installing, check brake pedal play and bleed air from
system (Refer to “BRAKE PEDAL PLAY CHECK” and
“BLEEDING BRAKE” in Section 5).
7) Perform brake test and check each installed part for fluid
leakage. NOTE:
Do not allow brake fluid to get on painted surfaces.
21
4
3
“A”
NOTE:
See NOTE at the beginning of this section.
1
(b)
(c)

5A-8 BRAKES PIPE/HOSE/MASTER CYLINDER
Brake Booster
CLEARANCE BETWEEN BOOSTER PISTON ROD AND
MASTER CYLINDER PISTON CHECK AND ADJUSTMENT
The length of booster piston rod (1) is adjusted to provide speci-
fied clearance “0” between piston rod (1) end and master cylinder
piston (2).
1) Before measuring clearance, push piston rod several times
so as to make sure reaction disc is in place.
2) Keep inside of booster at atmospheric pressure for measure-
ment.
3) Check depth of piston rod, i.e. distance between piston rod
and mating surface of booster-to-master cylinder.
Depth “c” of piston rod for check :
15.8 – 16.6 mm (0.623 – 0.653 in.)
1. Brake master cylinder assembly 4. Push rod clevis 7. Clip
2. Brake booster assembly 5. Nut 8. Plate
3. Gasket 6. Clevis pin 9. Seal
19
2 3
8546 7

BRAKES PIPE/HOSE/MASTER CYLINDER 5A-9
4) If measured depth is out of above specifications, adjust to
specifications below by turning adjusting screw of piston rod.
Special tool
(F) : 09952-16021
Depth “d” of piston rod for adjustment :
16.3 – 16.6 mm (0.642 – 0.653 in.)