2005 MITSUBISHI 380 service

CLUTCH CONTROL
CLUTCH21A-8
REASSEMBLY SERVICE POINT
>>A<< PUSHROD ASSEMBLY
INSTALLATIONSet the length of the pushrod assembly to the
dimension shown to make the adjustment of the
clutch pedal easier.
INSPECTIONM1211002200152
Check inside the cylinder body for rust and scars.
Check the piston for rust and scars.
Check the pipe connection for clogging.

35-1
GROUP 35
SERVICE BRAKES
CONTENTS
BASIC BRAKE SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35A
ANTI-LOCK BRAKING SYSTEM (ABS). . . . . . . . . . . . . . . . . . .35B

35A-1
GROUP 35A
BASIC BRAKE
SYSTEM
CONTENTS
GENERAL DESCRIPTION. . . . . . . . .35A-2
BASIC BRAKE SYSTEM DIAGNOSIS35A-3
INTRODUCTION TO BASIC BRAKE
SYSTEM DIAGNOSIS . . . . . . . . . . . . . . . . 35A-3
BASIC BRAKE SYSTEM DIAGNOSTIC
TROUBLESHOOTING STRATEGY . . . . . . 35A-3
SYMPTOM CHART. . . . . . . . . . . . . . . . . . . 35A-3
SYMPTOM PROCEDURES . . . . . . . . . . . . 35A-3
SPECIAL TOOLS . . . . . . . . . . . . . . . .35A-12
ON-VEHICLE SERVICE . . . . . . . . . . .35A-13
BRAKE PEDAL CHECK AND
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . 35A-13
BRAKE BOOSTER OPERATING TEST . . . 35A-14
CHECK VALVE OPERATION CHECK . . . . 35A-15
BLEEDING . . . . . . . . . . . . . . . . . . . . . . . . . 35A-16
BRAKE FLUID LEVEL SENSOR CHECK. . 35A-17
DISC BRAKE PAD CHECK AND
REPLACEMENT . . . . . . . . . . . . . . . . . . . . . 35A-17
DISC BRAKE ROTOR CHECK . . . . . . . . . . 35A-19
MASTER CYLINDER FUNCTION CHECK . 35A-23
BRAKE PEDAL. . . . . . . . . . . . . . . . . .35A-24
REMOVAL AND INSTALLATION . . . . . . . . 35A-24
INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . 35A-25
MASTER CYLINDER ASSEMBLY
AND BRAKE BOOSTER . . . . . . . . . .35A-26
REMOVAL AND INSTALLATION . . . . . . . . 35A-26
MASTER CYLINDER . . . . . . . . . . . . . . . . . 35A-28
INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . 35A-29
DISC BRAKE ASSEMBLY . . . . . . . . .35A-30
REMOVAL AND INSTALLATION . . . . . . . . 35A-30
INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . 35A-32
DISASSEMBLY AND ASSEMBLY
. . . . . . . . . . . . . . . . . . . . . . . . . . 35A-33
DISASSEMBLY AND ASSEMBLY 35A-36
INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . 35A-38
SPECIFICATIONS . . . . . . . . . . . . . . .35A-40
FASTENER TIGHTENING
SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . 35A-40
GENERAL SPECIFICATIONS . . . . . . . . . . 35A-40
SERVICE SPECIFICATIONS . . . . . . . . . . . 35A-41
LUBRICANTS . . . . . . . . . . . . . . . . . . . . . . . 35A-41

GENERAL DESCRIPTION
BASIC BRAKE SYSTEM35A-2
GENERAL DESCRIPTIONM1351000100440
The brake system has been designed to give greater
reliability and durability and to provide excellent brak-
ing performance.
FEATURES
.
Improved braking performance
1. An 8+9 inch tandem brake booster provides suffi-
cient braking force in sudden braking range.
2. 296mm front ventilated disc brakes provide sta-
ble braking force and improved braking feel.
3. 303mm rear ventillated disc brakes are used.
.
Improved stability
1. A 4-wheel anti-lock braking system (4ABS) pre-
vents slipping caused by the vehicle wheels lock-
ing up, in order to maintain a stable vehicle
posture and steering performance.
2. An electronic brake-force distribution (EBD)
makes it possible to maintain the maximum
amount of braking force even when the vehicle's
load is unevenly distributed. 3. Front- and rear-wheel X-type brake line layout
are used.
4. Ventilated discs brakes improve anti-fading per-
formance.
.
Improved serviceability
1. A diagnosis function for the ABS system makes
inspection easier.
2. An outer disc separated hub and rotor make
removal and installation easier.
3. The master cylinder reservoir is utilised for both
brake and clutch fluid on manual transmission
vehicles.
4. The master cylinder filter is coloured black for
improved viewing.
5. The ABS-ECU and hydraulic unit are integrated
to make them more compact and light weight.
CONSTRUCTION DIAGRAM

BASIC BRAKE SYSTEM DIAGNOSIS
BASIC BRAKE SYSTEM35A-6
INSPECTION PROCEDURE 4: Brake Drag
.
DIAGNOSIS
STEP 1. Check the parking brake operating lever return.
Q: Is the operation faulty?
YES : Repair it. Then go to Step 9.
NO : Go to Step 2.
STEP 2. Check the brake shoe springs for breakage.
Q: Are the brake shoe springs broken?
YES : Replace the spring. Then go to Step 9.
NO : Go to Step 3.
STEP 3. Check the amount of grease at each sliding
section.
Refer to GROUP 36, Parking Brake Lining and Drum P.36-8.
Q: Is the grease amount low?
YES : Apply grease. Then go to Step 9.
NO : Go to Step 4.
STEP 4. Check the parking brake pull amount.
Refer to GROUP 36, On-vehicle Service
Parking Brake lever
Stroke Check and Adjustment P.36-3.
Q: Is there a fault?
YES : Adjust it. Then go to Step 9.
NO : Go to Step 5.
STEP 5. Check for insufficient clearance between the push
rod and primary piston.
Refer to P.35A-26.
Q: Is there a fault?
YES : Adjust the clearance. Then go to Step 9.
NO : Go to Step 6.

SPECIAL TOOLS
BASIC BRAKE SYSTEM35A-12
STEP 4. Check the wheel bearings for end play.
(1) Remove the brake discs.
(2) Place a dial gauge as shown, and measure the end play
while moving the hub in the axial direction.
Limit: 0.05 mm (0.002 inch)
Q: Does the measured end play exceed the limit?
YES : Replace the faulty hub assembly. Then go to Step 5.
NO : Go to Step 5.
STEP 5. Recheck symptom.
Q: Is the symptom eliminated?
YES : The procedure is complete.
NO : Start over at step 1. If a new symptom surfaces, refer
to the symptom chart.
SPECIAL TOOLSM1351000600360
TOOL TOOL NUMBER AND
NAMESUPERSESSION APPLICATION
MB991568
Push rod adjusting socketGeneral service
toolAdjustment of the brake booster
push rod protrusion amount
MB990964
Brake tool set
A: MB990520
Disc brake piston expanderMB990620-01 or
general service
toolPushing-in of the disc brake
piston

ON-VEHICLE SERVICE
BASIC BRAKE SYSTEM35A-13
ON-VEHICLE SERVICE
BRAKE PEDAL CHECK AND ADJUSTMENTM1351000900446
BRAKE PEDAL HEIGHT
1. Turn up the carpet, etc. under the brake pedal.
2. Measure the brake pedal height as illustrated.
Standard value: 168..5
171.5 mm A/T
Standard value: 169.4
172.4 mm - M/T
[From the surface of dash panel to the face of pedal
pad]
3. If the brake pedal height is not within the standard value,
follow the procedure below.
(1) Disconnect the stoplight switch connector.
(2) Remove the brake booster (Refer to P.35A-26).
NOTE: With the master cylinder and brake pipe con-
nected, remove the brake booster only.
(3) Adjust the brake pedal height by turning the clevis.
NOTE: When the clevis is turned 180 degrees, the pedal
height is changed by approximately 2.2 mm (0.09 in).
(4) Install the brake booster (Refer to P.35A-26).
(5) Measure the brake pedal height, and ensure that the
measured value is within the specified value. If it is out of
the specified value, repeat Step (3) - (6).
(6) Screw in the stop light switch until its thread contacts the
stopper, and fix the stop light switch by turning it
approximately one quarter of a turn clockwise.
(7) Check that the clearance between the stop light switch
and the stopper is as shown.
Check that the stop light does not illuminate when the
brake pedal is not depressed.
(8) Connect the connector at the stop light switch.
4. Return the carpet, etc. to its original position.

ON-VEHICLE SERVICE
BASIC BRAKE SYSTEM35A-14
BRAKE PEDAL FREE PLAY
1. Turn the ignition switch to the "LOCK" (OFF) position, and
depress the brake pedal two or three times. After eliminating
the vacuum in the brake booster, press the pedal down by
hand, and confirm that the amount of movement before
resistance is met (free play) is within the standard value
range.
Standard value: 3
8 mm (0.12 0.31 inch)
2. If the brake pedal play is not within the standard value,
check the following, and adjust or replace if necessary:
Excessive play between the brake pedal and the clevis pin,
or between the clevis pin and the brake booster operating
rod
Brake pedal height
Installation position of the stop light switch, etc.
CLEARANCE BETWEEN BRAKE PEDAL AND
DASH PANEL
1. Turn up the carpet, etc. under the brake pedal.
2. Start the engine, depress the brake pedal with
approximately 500 N (112 pounds) of force, and measure
the clearance between the brake pedal and the dash panel.
Standard value: 110 mm (4.33 inches) or more [From
the surface of dash panel to the face of pedal pad]
3. If the clearance is outside the standard value, check for air
trapped in the brake line and check the thickness of the disc
brake pad. Andjust and replace defective parts as required.
4. Return the carpet etc. to its original position.
BRAKE BOOSTER OPERATING TESTM1351001000372
1. For simple checking of the brake booster operation, carry
out the following tests:
(1) Run the engine for one or two minutes, and then stop it. If
the pedal depresses fully the first time but gradually
becomes higher when depressed succeeding times, the
booster is operating properly. If the pedal height remains
unchanged, the booster is defective. Go to step 2.