Mitsubishi Pajero Pinin. Manual — part 236
BASIC BRAKE SYSTEM –
On-vehicle Service
35A-12
DISC BRAKE ROTOR CHECK
Caution
When servicing disc brakes, it is necessary to exercise caution to keep the disc brakes within
the allowable service values in order to maintain normal brake operation.
Before re-finishing or re-processing the brake disc surface, the following conditions should be checked.
Inspection items
Remarks
Scratches, rust, saturated lining materials
and wear
D
If the vehicle is not driven for a certain period, the sections of
the discs that are not in contact with lining will become rusty, causing
noise and shuddering.
D
If grooves resulting from excessive disc wear and scratches are
not removed prior to installing a new pad assembly, there will
momentarily be inappropriate contact between the disc and the
lining (pad).
Run-out or drift
Excessive run-out or drift of the discs will increase the pedal depression
resistance due to piston knock-back.
Change in thickness (parallelism)
If the thickness of the disc changes, this will cause pedal pulsation,
shuddering and surging.
Inset or warping (flatness)
Overheating and improper handling while servicing will cause inset or
warping.
BRAKE DISC THICKNESS CHECK
1.
Using a micrometer, measure disc thickness at eight
positions, approximately 45
_
apart and 10 mm in from
the outer edge of the disc.
Brake disc thickness
Item
Standard value
Limit
Front
22.0
20.4
Rear
9.4
7.8
Thickness variation (at least 8 positions)
The difference between any thickness measurements
should not be more than 0.015 mm.
2.
If the disc is beyond the limits for thickness, remove it
and install a new one. If thickness variation exceeds the
specification, replace the brake disc or grind it with
on-the-car type brake lathe (“MAD, DL-8700PF” or
equivalent).
BASIC BRAKE SYSTEM –
On-vehicle Service
35A-13
BRAKE DISC RUN-OUT CHECK AND
CORRECTION
1.
Remove the brake assembly, and then hold it with wire.
2.
Place a dial gauge approximately 5 mm from the outer
circumference of the brake disc, and measure the run-out
of the disc.
Limit: <Front> 0.06 mm or less,
<Rear> 0.08 mm or less
3.
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, which run-out is excessive as shown.
(2) Remove the brake disc. Then place a dial gauge as
shown, and measure the end play by pushing and
pulling the wheel hub.
Limit: <Front> 0.2 mm, <Rear> 0.025 mm
(3) If the end play exceeds the limit, disassemble the
hub and knuckle assembly to check each part.
(4) If the end play does not exceed the limit, dephase
the brake disc and secure it. Then recheck the brake
disc run-out.
4.
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).
Chalk marks
BASIC BRAKE SYSTEM –
Brake Pedal
35A-14
BRAKE PEDAL
REMOVAL AND INSTALLATION
Post-installation Operation
Brake Pedal Adjustment
(Refer to P.35A-6.)
1
2
3
9
6
4
8
7
5
10
12 Nm
14 Nm
Removal steps
1. Harness connector
2. Stop lamp switch
3. Adjuster
4. Pedal stopper
5. Snap pin
6. Pin assembly
7. Split pin <A/T>
8. Shift lock cable connection <A/T>
9. Pedal pad
10. Brake pedal and pedal support
member
INSPECTION
STOP LAMP SWITCH CHECK
1.
Connect an ohmmeter between the stop lamp 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.
No continuity
Continuity
4 mm
BASIC BRAKE SYSTEM –
Master Cylinder and Brake Booster
35A-15
MASTER CYLINDER AND BRAKE BOOSTER
REMOVAL AND INSTALLATION
<L.H. drive vehicles with ABS>
Pre-removal Operation
Brake Fluid Draining
Post-installation Operation
D
Brake Fluid Supplying and Air Bleeding
(Refer to P.35A-10.)
D
Brake Pedal Adjustment (Refer to P.35A-6.)
Specified Sealant: 3M ATD
Part No.8661 or equivalent
Grease: Silicone grease
11
4
7
8
14
9
10
1
2
12
12 Nm
15 Nm
14 Nm
15 Nm
1
3
11
6
14
14.7 – 17.7 Nm
12
10
Silicon grease
5
13
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