Mitsubishi 380. Manual — part 297
ON-VEHICLE SERVICE
BASIC BRAKE SYSTEM
35A-22
BRAKE DISC RUN-OUT CHECK AND
CORRECTION
1. Remove the brake assembly, and then hold it with wire.
2. Temporarily install the disc with the hub nut.
3. Place a dial gauge approximately 5 mm (0.2 inch) from the
outer circumference of the brake disc, and measure the
run-out of the disc.
Limit:
<Front brake disc>: 0.10 mm (0.0039 inch)
<Rear brake disc>: 0.04 mm (0.0016 inch)
4. If the brake disc run-out exceeds the limit, correct it as
follows:
(1) Chalk phase marks on the wheel stud and the brake disc
as shown.
(2) Remove the brake disc. Then 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)
(3) If the end play exceeds the limit, replace the hub
assembly.
(4) If the end play does not exceed the limit, dephase the
brake disc and secure it. Then recheck the brake disc
run-out.
ACX00669AB
AC210711AB
CHALK MARKS
AC102438 AC
<FRONT>
AC205869AC
<REAR>
ON-VEHICLE SERVICE
BASIC BRAKE SYSTEM
35A-23
CAUTION
• After a new brake disc is installed, always grind the
brake disc with an on-the-car type brake lathe. If this
step is not carried out, the brake disc run-out exceeds
the specified value, resulting in judder.
• When the on-the-car type lathe is used, first install a
M12 flat washer on the stud bolt in the brake disc side
according to the figure, and then install the adapter. If
the adapter is installed with M12 flat washer not seated,
the brake disc rotor may be deformed, resulting in inac-
curate grinding.
• Grind the brake disc with all wheel nuts diagonally and
equally tightened to the specified torque 100 N
⋅m (74
ft-lb). If all of the wheel nuts are not used, or the tight-
ening torque is excessive or not equal, the brake disc
rotor or drum may be deformed, resulting in judder.
5. If the run-out cannot be corrected by changing the phase of
the brake disc, replace the brake disc or grind it with the
on-the-car type brake lathe ("MAD, DL-8700PF" or
equivalent).
MASTER CYLINDER FUNCTION CHECK
M1351010200266
1. Remove the reservoir cap.
2. While watching the open reservoir from a distance of 50 cm
(20 inches), have an assistant depress the brake pedal. If
there was a stream of brake fluid rising from the reservoir,
proceed to Step 3. If there was no stream of brake fluid
rising from the reservoir, repair or replace the master
cylinder.
3. While watching the open reservoir from a distance of 50 cm
(20 inches), have the assistant release the brake pedal. If
there was a small amount of air bubbles rising through the
brake fluid, master cylinder function is normal. If there were
no bubbles rising through the brake fluid, repair or replace
the master cylinder.
AC006226AB
M12 FLAT WASHER
M12 FLAT WASHER
BRAKE PEDAL
BASIC BRAKE SYSTEM
35A-24
BRAKE PEDAL
REMOVAL AND INSTALLATION
M1351003400406
Post-installation Operation
• Brake Pedal Adjustment (Refer to
).
AC206452
AB
13 ± 2 N·m
115 ± 18 in-lb
14 ± 2 N·m
122 ± 25 in-lb
10
6
1
2
3
4
9
7
8
5
11
REMOVAL STEPS
1. BRAKE BOOSTER PIN
2. BRAKE BOOSTER PIN ASSEMBLY
3. SHIFT LOCK CABLE CONNECTION
4. STOPLIGHT SWITCH CONNECTOR
5. STOPLIGHT SWITCH
6. BRAKE PEDAL CLIP
•
WIRING HARNESSES CLAMPED
ON BRAKE PEDAL ASSEMBLY
7. BRAKE PEDAL BOLT
8. BRAKE BOOSTER NUT
9. BRAKE PEDAL ASSEMBLY
10. BRAKE PEDAL PAD
11. BRAKE PEDAL STOPPER
REMOVAL STEPS (Continued)
BRAKE PEDAL
BASIC BRAKE SYSTEM
35A-25
INSPECTION
M1351003500221
.
STOPLIGHT SWITCH CHECK
1. Connect an ohmmeter between the stoplight switch
connector terminals.
2. There should be no continuity between the terminals when
the plunger is pushed in as shown. There should be
continuity when it is released.
TESTER
CONNECTION
PLUNGER
SPECIFIED
CONDITION
1
− 2
IN
Open circuit
OUT
Less than 2
Ω
ACX00671AB
NO CONTINUITY CONTINUITY
4 mm
(0.16 in)
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