Rear brakes SUZUKI GRAND VITARA 2002 2.G Service Workshop Manual
[x] Cancel search | Manufacturer: SUZUKI, Model Year: 2002, Model line: GRAND VITARA, Model: SUZUKI GRAND VITARA 2002 2.GPages: 801, PDF Size: 12.15 MB
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YH4
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vol.1
0A
0B
1A
1B
3
3A
3B1
3C
3C1
3D
3E
3F
4A2
4B
5
6
7A5A
5B
5C
5E1
6A1
6A2
6A4
6B
6C
6E1
6E2
6F1
6F2
6G
6G1
6H
6K
7A1
7B1
7C1
7D
7E
7F
8
8B
8C
8D
8G
9
10
10A
8A
10B
6-1ENGINE
General Information and
Diagnosis (G16 / J20)
General Information and
Diagnosis (H25)
Engine Mechanical (G16)
Engine Mechanical (H25)
Engine Mechanical (J20)
Engine Cooling
Engine Fuel
Engine and Emission Control
System (SFI for G16 / J20)
Engine and Emission Control
System (SFI for H25)
Ignition System (G16)
Ignition System (J20 / H25)
Cranking System
(Reduction Type)
Cranking System
(No-Reduction Type)
Charging System
Exhaust System
TRANSMISSION, CLUTCH
AND DIFFERENTIAL
Manual Transmission (Type 1)
Manual Transmission (Type 2)
Automatic Transmission
Clutch (Hydraulic Type)
Transfer
Differential (Front)
Differential (Rear)
BODY ELECTRICAL SYSTEM
Wiring Diagram
Lighting System
Instrumentation / Driver
Information
Windows, Mirrors, Security
and Lock
Immobilizer Control System
BODY SERVICE
RESTRAINT SYSTEM
Seat Belt
Air Bag System GENERAL INFORMATION
General Information
Maintenance and Lubrication
TABLE OF CONTENTS TABLE OF CONTENTS SECTIONSECTION
0B
HEATING AND AIR
CONDITIONING
Heater and Ventilation
Air Conditioning
STEERING, SUSPENSION,
WHEELS AND TIRES
Front End Alignment
Power Steering (P / S) System
Steering Wheel and Column
(Not Equipped with Air Bag)
Air Bag Steering Wheel
and Column
Front Suspension
Rear Suspension
Wheel and Tires
1A
3A 0A
1B
3B1
3C
3C1
3D
3E
3F36A16
6A2
6A4
6B
6C
6E1
6E2
6F1
DRIVE SHAFT / PROP. SHAFT
Front Drive Shaft / Shaft
Bearing, Oil Seal
Propeller Shaft
BRAKES
Brake Pipe / Hose / Master
Cylinder
Front Brakes
Parking and Rear Brakes
Antilock Brake System
4A2
4B
5
5A
5B
5C
5E1
6F2
6G
6G1
6H
6K
7A
7A1
7B1
7C1
7D
7E
7F
8
8A
8B
8C
8D
8G
9
10
10A
10B
6-1
NOTE:
The screen toned Sections 6 ± 6K are included in Volume 2 and Section 8A is in Wiring
Diagram Manual.
Page 136 of 801
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3-4 STEERING, SUSPENSION, WHEELS AND TIRES
ConditionPossible CauseCorrection
Wander or Poor
Steering StabilityMismatched or uneven tires.
Loose ball joints and tie rod
ends.
Faulty shock absorbers / struts or
mounting.
Loose stabilizer bar.
Broken or sagging springs.
Rack and pinion not properly adjusted.
(if equipped with manual steering
gear case)
Disturbed front end alignment.Replace tire or inflate tires to
proper pressure.
Replace suspension control arm or
tie rod end.
Replace absorber / strut or repair
mounting.
Tighten or replace stabilizer bar or
bushes.
Replace spring.
Check or adjust rack and pinion
torque.
Check and adjust front end alignment.
Erratic Steering when
BrakingWorn wheel bearings.
Broken or sagging springs.
Leaking wheel cylinder or caliper.
Warped discs.
Badly worn brake linings.
Drum is out of round in some brakes.
Wheel tires are inflated unequally.
Defective wheel cylinders.
Disturbed front end alignment.Replace wheel bearing.
Replace spring.
Repair or replace wheel cylinder or
caliper.
Replace brake disc.
Replace brake shoe lining.
Replace brake drum.
Inflate tires to proper pressure.
Replace or repair wheel cylinder.
Check front end alignment.
Low or Uneven Trim
Height
Right-to-left trim height
(H) difference should be
within 15 mm (0.6 in.)
with curb weight.
*Same with rear side.Broken or sagging springs.
Overloaded.
Incorrect springs.Replace spring.
Check loading.
Replace spring.
Ride Too SoftFaulty shock absorber or struts.Replace shock absorber or strut.
Suspension BottomsOverloaded.
Faulty shocks or struts.
Incorrect broken or sagging springs.Check loading.
Replace shock absorber or strut.
Replace spring.
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5
BRAKES 5-1
GENERAL DESCRIPTION5- 2 . . . . . . . . . . . . . .
DIAGNOSIS5- 3 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Road Testing Brakes 5- 3. . . . . . . . . . . . . . . . . .
Brake Fluid Leaks 5- 3. . . . . . . . . . . . . . . . . . . .
Substandard or Contaminated
Brake Fluid 5- 3. . . . . . . . . . . . . . . . . . . . . . . . .
Diagnosis Table 5- 4. . . . . . . . . . . . . . . . . . . . . .
CHECK AND ADJUSTMENT5- 7 . . . . . . . . . . . .
Bleeding Brakes 5- 7. . . . . . . . . . . . . . . . . . . . . .
Brake Pedal Free Height Check 5- 9. . . . . . . .
Brake Light Switch Adjustment 5- 9. . . . . . . . .
Excessive Pedal Travel Check 5- 9. . . . . . . . .
Brake Pedal Play Check 5-10. . . . . . . . . . . . . . .
Brake Fluid Level Check 5-10. . . . . . . . . . . . . . . Brake Hose and Pipe Check 5-10. . . . . . . . . . .
Master Cylinder Check 5-10. . . . . . . . . . . . . . . .
Brake Disc Check 5-11. . . . . . . . . . . . . . . . . . . .
Brake Pad Check 5-11. . . . . . . . . . . . . . . . . . . . .
Brake Shoe Check 5-11. . . . . . . . . . . . . . . . . . . .
Parking Brake Check and
Adjustment 5-12. . . . . . . . . . . . . . . . . . . . . . . . .
Flushing Brake Hydraulic System 5-13. . . . . . .
Fluid Pressure Test 5-13. . . . . . . . . . . . . . . . . . .
Booster Operation Check 5-15. . . . . . . . . . . . . .
TIGHTENING TORQUE
SPECIFICATIONS5-17 . . . . . . . . . . . . . . . . . . . .
REQUIRED SERVICE MATERIAL5-17 . . . . . . . .
SPECIAL TOOLS5-18 . . . . . . . . . . . . . . . . . . . . . .
SECTION 5
BRAKES
WARNING:
For vehicles equipped with Supplemental Restraint (Air Bag) System:
Service on and around the air bag system components or wiring must be performed only by an autho-
rized SUZUKI dealer. Refer to ªAir Bag System Components and Wiring Location Viewº under ªGener-
al Descriptionº in air bag system section in order to confirm whether you are performing service on
or near the air bag system components or wiring. Please observe all WARNINGS and ªService Precau-
tionsº under ªOn-Vehicle Serviceº in air bag system section before performing service on or around
the air bag system components or wiring. Failure to follow WARNINGS could result in unintentional
activation of the system or could render the system inoperative. Either of these two conditions may
result in severe injury.
Technical service work must be started at least 90 seconds after the ignition switch is turned to the
ªLOCKº position and the negative cable is disconnected from the battery. Otherwise, the system may
be activated by reserve energy in the Sensing and Diagnostic Module (SDM).
NOTE:
When inspecting and servicing vehicle equipped with ABS, be sure to refer to section 5E or 5E1 first.
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 as-
sure proper retention of all parts. There is to be no welding as it may result in extensive damage and
weakening of the metal.
DIAGNOSIS5-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BRAKE PIPE / HOSE / MASTER CYLINDER5A-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FRONT BRAKE5B-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PARKING AND REAR BRAKE5C-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CONTENTS
Page 278 of 801
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[FOR VEHICLE WITHOUT ABS]
[FOR VEHICLE WITH ABS]
1. Master cylinder
2-1. 4-way joint
2-2. 2-way joint
3. LSPV (Load Sensing Proportioning Valve)
4. Rear axle housing
5. ABS actuator (H.U.)
F.R.:Front side
5-2 BRAKES
GENERAL DESCRIPTION
When the foot brake pedal is depressed, hydraulic pressure is developed in the master cylinder to actuate pistons
(two in front and four in rear).
The master cylinder is a tandem master cylinder. Brake pipes are connected to the master cylinder and they make
two independent circuits. One connects front brakes (right and left) and the other connects rear brakes (right and
left).
The load sensing proportioning valve (LSPV) is included in these circuits between the master cylinder and the rear
brake for the vehicle without ABS.
In this brake system, the disc brake type is used for the front wheel brake and a drum brake type (leading / trailing
shoes) for the rear brake.
The parking brake system is mechanical. It applies brake force to only rear wheels by means of the cable and me-
chanical linkage system. The same brake shoes are used for both parking and foot brakes.
Page 280 of 801
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5-4 BRAKES
DIAGNOSIS TABLE
ConditionPossible CauseCorrection
Not enough brak-
ing forceBrake oil leakage from brake lines.
Brake disc or pads stained with oil.
Overheated brakes.
Poor contact of shoes on brake drum.
Brake shoes linings stained with oil or wet
with water.
Badly worn brake shoe linings.
Defective wheel cylinders.
Malfunctioning caliper assembly.
Air in system.
Maladjusted sensor spring length of LSPV.
Broken sensor spring of LSPV.
Defective collar of LSPV.
Malfunctioning ABS (Antilock brake system),
if equipped.Locate leaking point and repair.
Clean or replace.
Determine cause and repair.
Repair for proper contact.
Replace.
Replace.
Repair or replace.
Repair or replace.
Bleed system.
Check or adjust.
Replace.
Replace.
Check system and replace as
necessary.
Brake pull
(Brakes not work-
ing in unison)Pad or shoe linings are wet with water or
stained with oil in some brakes.
Drum-to-shoe clearance out of adjustment in
some brakes.
(Malfunctioning auto adjusting mechanism)
Drum is out of round in some brakes.
Wheel tires are inflated unequally.
Malfunctioning wheel cylinders.
Disturbed front end alignment.
Unmatched tires on same axle.
Restricted brake pipes or hoses.
Malfunctioning caliper assembly.
Loose suspension parts.
Loose calipers.Replace.
Check for inoperative auto adjusting
mechanism.
Replace.
Inflate equally.
Repair or replace.
Adjust as prescribed.
Tires with approximately the same
amount of tread should be used on the
same axle.
Check for soft hoses and damaged
lines.
Replace with new hoses and new
brake pipes.
Check for stuck or sluggish pistons
and proper lubrication of caliper slide
bush.
Caliper should slide.
Check all suspension mountings.
Check and torque bolts to specifica-
tions.
Noise (High pitched
squeak without
brake applied)Front lining worn out.Replace linings.
Rear brake locked
prematurelyMaladjusted sensor spring length of LSPV.
Malfunction LSPV assembly.Check or adjust.
Replace assembly.
Brake locked
(For vehicles
equipped with
ABS)Malfunctioning ABS, if equipped.Check system and replace as
necessary.
Page 281 of 801
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BRAKES 5-5
ConditionPossible CauseCorrection
Excessive pedal
travel (Pedal
stroke too large)Partial brake system failure.
Insufficient fluid in master cylinder
reservoirs.
Air in system. (pedal soft / spongy)
Rear brake system not adjusted.
(malfunctioning auto adjusting mechanism)
Bent brake shoes.
Worn rear brake shoes.Check brake systems and repair as
necessary.
Fill reservoirs with approved brake
fluid.
Check for leaks and air in brake
systems.
Check warning light. Bleed system if
required.
Bleed system.
Repair auto adjusting mechanism.
Adjust rear brakes.
Replace brake shoes.
Replace brake shoes.
Dragging brakes
(A very light drag
is present in all
disc brakes
immediately
after pedal is
released)Master cylinder pistons not returning
correctly.
Restricted brake pipes or hoses.
Incorrect parking brake adjustment on rear
brakes.
Weakened or broken return springs in the
brake.
Sluggish parking-brake cables or linkage.
Wheel cylinder or caliper piston sticking.
Malfunctioning ABS, if equipped with ABS.Replace master cylinder.
Check for soft hoses or damaged
pipes and replace with new hoses
and / or new brake pipes.
Check and adjust to correct specifi-
cations.
Replace.
Repair or replace.
Repair as necessary.
Check system and replace as
necessary.
Pedal pulsation
(Pedal pulsates
when depressed
for braking)Damaged or loose wheel bearings.
Distorted steering knuckle or rear axle
shafts.
Excessive disc lateral runout.
Parallelism not within specifications.
Rear drums out of round.Replace wheel hub component.
Replace knuckle or rear axle shaft.
Check per instructions. If not within
specifications, replace or machine
the disc.
Check per instructions. If not within
specifications, replace or machine
the disc.
Check runout.
Repair or replace drum as
necessary.
Braking noiseGlazed shoe linings, or foreign matters
stuck to linings.
Worn or distorted shoe linings.
Loose front wheel bearings.
Distorted backing plates or loose mounting
bolts.Repair or replace shoe lining.
Replace shoe lining (or pad).
Replace wheel hub component.
Replace or retighten securing bolts.
Page 283 of 801
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1. 4-way joint / 2-way joint
2. Master cylinder
3. LSPV
4. Right brake caliper
5. Left brake caliper
6. Right wheel cylinder
7. Left wheel cylinder
8. ABS actuator
: Air bleeding point [A]: Without ABS
[B]: With ABS
1. Plug cap2. Vinyl tube (See-through tube)
3. Container
[A]
[B]
BRAKES 5-7
CHECK AND ADJUSTMENT
BLEEDING BRAKES
CAUTION:
Brake fluid is extremely damaging to paint. If fluid should
accidentally touch painted surface, immediately wipe
fluid from paint and clean painted surface.
NOTE:
For vehicle equipped with ABS, make sure that ignition switch
turns off.
Be sure to bleed air of brake system according to following proce-
dure when its oil hydraulic circuit has been disconnected.
Hydraulic lines of brake system consists of two separate lines, one
for front wheel brakes and the other for rear wheel brakes.
Air bleeding is necessary at right and left front wheel brakes, left
rear wheel brake and LSPV (if equipped without ABS), i.e. 4 places
(3 places for vehicle with ABS) in all.
1) Fill master cylinder reservoir with brake fluid and keep at least
one-half full of fluid during bleeding operation.
2) Remove bleeder plug cap.
Attach a vinyl tube to bleeder plug of wheel cylinder, and insert
the other end into container.
3) Depress brake pedal several times, and then while holding it de-
pressed, loosen bleeder plug about one-third to one half turn.
Page 285 of 801
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1. Stop light switch
BRAKES 5-9
BRAKE PEDAL FREE HEIGHT CHECK
Remove foot rest and displace carpet and dash silencer(s) so as to
measure brake pedal free height between pedal face and asphalt
sheet installed on dash panel.
Brake pedal free height ªaº from asphalt sheet:
208 ± 218 mm (8.19 ± 8.58 in.)
If the measurement is not within the specification, check the posi-
tion of booster push rod clevis and / or stop light switch according
to the instruction shown in this section.
The free height varies depending on installation position of booster
push rod clevis and stop light switch.
BRAKE LIGHT SWITCH ADJUSTMENT
Adjustment should be made as follows when installing switch. Pull
up brake pedal toward you and while holding it there, adjust switch
position so that clearance between end of thread and brake pedal
return cushion (shown as ªbº in figure).
Then tighten lock nut to specified torque.
Clearance ªbº: 1.5 ± 2.0 mm (0.06 ± 0.08 in.)
Tightening Torque
(b): 7.5 N
.m (0.75 kg-m, 5.5 lb-ft)
EXCESSIVE PEDAL TRAVEL CHECK
1) Remove foot rest and displace carpet and dash silencer(s).
2) Start engine.
3) Depress brake pedal a few times.
4) With brake pedal depressed with approximately 30 kg (66 lbs)
load, measure pedal to asphalt sheet clearance ªcº.
Clearance ªcº: over 115 mm (4.53 in.)
5) If clearance ªcº is less than specification, the most possible
cause is either rear brake shoes are worn out beyond limit or air
is in lines.
Should clearance ªcº remain less than specification even after
replacement of brake shoes and bleeding of system, other pos-
sible but infrequent cause is malfunction of rear brake shoe ad-
justers or booster push rod length out of adjustment.
Page 288 of 801
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1. Parking brake lever
2. Brake cable
3. Self locking nut
5-12 BRAKES
PARKING BRAKE CHECK AND
ADJUSTMENT
CHECK
Hold center of parking brake lever grip and pull it up with 20 kg
(40 lbs) force.
With parking brake lever pulled up as shown, count ratchet
notches.
There should be 5 to 7 notches.
Also, check if both right and left rear wheels are locked firmly.
To count number of notches easily, listen to click sounds that ratchet
makes while pulling parking brake lever without pressing its button.
One click sound corresponds to one notch.
If number of notches is out of specification, adjust cable by referring
to adjustment procedure described on the following as to obtain
specified parking brake stroke.
NOTE:
Check tooth tip of each notch for damage or wear. If any dam-
age or wear is found, replace parking brake lever.
ADJUSTMENT
NOTE:
Make sure for following conditions before cable adjustment.
No air is trapped in brake system.
Brake pedal travel is proper.
Brake pedal has been depressed a few times with about
30 kg (66 lbs) load.
Parking brake lever has been pulled up a few times with
about 20 kg (44 lbs) force.
Rear brake shoes are not worn beyond limit, and self adjust-
ing mechanism operates properly.
To slacken parking brake cable, loosen self locking nut as far
as end of bolt. Then depress brake pedal a few times with
about 30 kg (66 lbs) load.
After confirming that above 6 conditions are all satisfied, adjust
parking brake lever stroke by loosening or tightening locking nut.
NOTE:
Check brake drum for dragging after adjustment.
Parking brake stroke: 5 to 7 notches
(When lever is pulled up at 20 kg (44 lbs).)
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1. Air bleeder plug
2. Weight
3. Attachment2
ªLº
BRAKES 5-13
FLUSHING BRAKE HYDRAULIC SYSTEM
It is recommended that entire hydraulic system be thoroughly
flushed with clean brake fluid whenever new parts are installed in
hydraulic system.
Periodical change of brake fluid is also recommended.
FLUID PRESSURE TEST(if equipped with
LSPV)
Test procedure for LSPV assembly is as follows.
Before testing, confirm the following.
Fuel tank is filled with fuel fully.
Vehicle is equipped with spare tire, tools, jack and jack handle.
1) Stop vehicle on level floor and place approximately about
200 kg (441 lbs) weight on rear housing so that rear axle weight
800 kg (1764 lb).
Rear axle weight ªLº: 800 kg (1764 lb)
2) Install special tool to front and rear brake.
NOTE:
Special tool should be connected to breather of front (driv-
er's side brake) and rear brakes.
Special Tool
Front brake
(A): 09956-02310
(B): 09952-46510 (Attachment for vehicle with SUMITOMO
ELECTRIC brake caliper)
(C): 55473-82030 (Air bleeder plug supplied as a spare part)
Rear brake
(A): 09956-02310
(B): 09952-36310 (Attachment for thread diameter 7 mm of
bleeder plug) or
09952-46510 (Attachment for thread diameter 8 mm of
bleeder plug)
(C): 55473-82030 (Air bleeder plug supplied as a spare part)
NOTE:
Special tool (B) is used instead of thread diameter 10 mm
attachment of special tool (A).
So remove the attachment from (A) and install (B) as
shown in figure.
For vehicle with TOKICO brake caliper, use the attach-
ment included in special tool (A).
For identification of brake caliper type, refer to GENERAL
DESCRIPTION in SECTION 5B.