Mitsubishi Outlander GS45X. Manual — part 1543

35A-1

GROUP 35A

BASIC BRAKE

CONTENTS

GENERAL INFORMATION . . . . . . . .

35A-2

GENERAL SPECIFICATIONS . . . . . .

35A-4

SERVICE SPECIFICATIONS. . . . . . .

35A-5

LUBRICANTS . . . . . . . . . . . . . . . . . .

35A-5

BASIC BRAKE SYSTEM

DIAGNOSIS . . . . . . . . . . . . . . . . . . . .

35A-6

INTRODUCTION TO BASIC BRAKE

SYSTEM DIAGNOSIS . . . . . . . . . . . . . . . .

35A-6

BASIC BRAKE SYSTEM DIAGNOSTIC
TROUBLESHOOTING STRATEGY . . . . . .

35A-6

SYMPTOM CHART. . . . . . . . . . . . . . . . . . .

35A-6

SYMPTOM PROCEDURES . . . . . . . . . . . .

35A-6

SPECIAL TOOLS. . . . . . . . . . . . . . . .

35A-15

ON-VEHICLE SERVICE. . . . . . . . . . .

35A-15

BRAKE PEDAL INSPECTION . . . . . . . . . .

35A-15

BRAKE BOOSTER OPERATION CHECK .

35A-17

CHECK VALVE OPERATION CHECK . . . .

35A-19

BLEEDING . . . . . . . . . . . . . . . . . . . . . . . . .

35A-20

BRAKE FLUID LEVEL SWITCH CHECK . .

35A-20

BRAKE PAD CHECK . . . . . . . . . . . . . . . . .

35A-21

BRAKE PAD REPLACEMENT . . . . . . . . . .

35A-21

BRAKE DISC CHECK. . . . . . . . . . . . . . . . .

35A-24

BRAKE DRAG FORCE CHECK . . . . . . . . .

35A-27

BRAKE PEDAL. . . . . . . . . . . . . . . . . .

35A-28

REMOVAL AND INSTALLATION . . . . . . . .

35A-28

INSPECTION. . . . . . . . . . . . . . . . . . . . . . . .

35A-29

STOPLIGHT SWITCH CHECK . . . . . . . . . .

35A-29

BRAKE PEDAL DISTORTION CHECK . . . .

35A-29

MASTER CYLINDER ASSEMBLY AND
BRAKE BOOSTER ASSEMBLY . . . .

35A-30

REMOVAL AND INSTALLATION . . . . . . . .

35A-30

FRONT DISC BRAKE ASSEMBLY . .

35A-33

REMOVAL AND INSTALLATION . . . . . . . .

35A-33

INSPECTION. . . . . . . . . . . . . . . . . . . . . . . .

35A-34

DISASSEMBLY AND ASSEMBLY . . . . . . .

35A-35

INSPECTION. . . . . . . . . . . . . . . . . . . . . . . .

35A-37

REAR DISC BRAKE ASSEMBLY . . .

35A-39

REMOVAL AND INSTALLATION

<2.4L ENGINE: 5 PERSONS SEAT> . . . . .

35A-39

REMOVAL AND INSTALLATION

<2.4L ENGINE: 7 PERSONS SEAT,

3.0L ENGINE>. . . . . . . . . . . . . . . . . . . . . . .

35A-40

INSPECTION. . . . . . . . . . . . . . . . . . . . . . . .

35A-40

DISASSEMBLY AND ASSEMBLY . . . . . . .

35A-41

INSPECTION. . . . . . . . . . . . . . . . . . . . . . . .

35A-44

GENERAL INFORMATION

TSB Revision

BASIC BRAKE

35A-2

GENERAL INFORMATION

M1351000101818

Brake systems with higher reliability and durability
have achieved distinguished braking performance.

FEATURES

.

IMPROVEMENT OF BRAKING PERFOR-
MANCE

• In addition to the 10-inch single brake booster,

the small and long stroke-type master cylinder is
used to achieve the downsizing and secure the
assist force.

• The installation of 16-inch ventilated disc brake

on the front axle and 16-inch solid disc brake on
the rear axle achieves the secure braking force
and direct braking feeling.

.

IMPROVEMENT IN SAFETY

• The 4-wheel anti-lock brake system (4ABS) has

been installed to prevent slippage resulting from
the wheel lock and assure stable vehicle posture
and driveability.

• Electronic control braking force distribution sys-

tem (EBD) has been adopted to assure the maxi-
mum braking force independently of the
passenger' position in the vehicle.

• X-type piping of brake lines have been adopted

for the front and rear wheels.

• Audible wear indicator has been adopted to the

front and rear brake pads to warn the driver of the
wear limit.

• The 10-inch single brake booster with brake

assist mechanism, which determines an emer-
gency exists based on the brake pedal depres-
sion speed and force and provides the maximum
braking force, has been adopted.

.

SERVICE QUALITY IMPROVEMENTS

• Diagnostic function has been adopted to ABS for

easier inspection.

• Brake fluid reservoir, master cylinder, and brake

booster have been integrated for downsizing and
better serviceability.

AC606571

Master cylinder

AD

Reserve tank

Hydraulic unit

Brake booster

Front disc brake

Rear disc brake

GENERAL INFORMATION

TSB Revision

BASIC BRAKE

35A-3

BRAKE ASSIST MECHANISM

When the driver suddenly applies the brake, gener-
ally there is a tendency that a driver depresses the
brake pedal quickly but not strong enough, or
depresses the pedal once but reduces the depres-
sion force immediately after that. In this case, a suffi-
cient braking force cannot be obtained, resulting in a
longer stopping distance.

This brake booster with brake assist mechanism rec-
ognizes the status as emergency when the driver
depresses the brake pedal quickly; it increases the
assist force to the maximum value and maintains the
output value of the brake booster to activate ABS.
Even if the driver reduces the depression force
immediately after depressing the brake pedal quickly,
this brake booster maintains the status where the
maximum assist force is being applied until no
depression force is applied to the brake pedal.

AC905194 AB

Pedal depression force

Normal brake

Braking force

Emergency brake

GENERAL SPECIFICATIONS

TSB Revision

BASIC BRAKE

35A-4

GENERAL SPECIFICATIONS

M1351000200629

Item

Specification

Master
cylinder

Type

Tandem type

I.D. mm (in)

20.6 (0.81)

Brake
booster

Type

Vacuum type, single

Effective dia. of power cylinder mm (in)

255 (10.0)

Boosting ratio

8.5 (Pedal pressure: 160N)

Rear wheel hydraulic control method

Electronic control braking force
distribution system (EBD)

Front brake Type

(Disk brake nomenclature)

Floating caliper 1 piston ventilated
disk (V6-S57)

Brake disk effective dia

× thickness mm (in)

241

× 26 (9.5 × 1.02)

Cylinder I.D. mm (in)

57.1 (2.25)

Brake pad thickness mm (in)

10.0 (0.39)

Clearance adjustment

Automatic adjustment

Rear brake Type

(Disk brake nomenclature)

2.4L Engine: 5 persons seat

Floating caliper 1 piston solid disk
(S6-S35)

2.4L Engine: 7 persons seat,
3.0L Engine

Floating caliper 1 piston solid disk
(S6-S38)

Brake disk effective dia

× thickness mm (in)

258

× 10 (10.2 × 0.39)

Cylinder I.D. mm (in)

2.4L Engine: 5 persons seat

34.9 (1.37)

2.4L Engine: 7 persons seat,
3.0L Engine

38.1 (1.50)

Brake pad thickness mm (in)

10.0 (0.39)

Clearance adjustment

Automatic adjustment