Mitsubishi Pajero Pinin. Manual — part 237
BASIC BRAKE SYSTEM –
Master Cylinder and Brake Booster
35A-16
<L.H. drive vehicles without ABS and R.H. drive vehicles>
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
5
13
<L.H. drive vehicles>
14
<R.H. drive vehicles>
14.7 – 17.7 Nm
6
Grease: Silicone grease
12
4
BASIC BRAKE SYSTEM –
Master Cylinder and Brake Booster
35A-17
Master cylinder removal steps
1. Brake pipe connection
2. Brake fluid level sensor connector
3. Bracket <L.H. drive vehicles>
4. Master cylinder
"
C
A
5. Seal
Brake booster removal steps
1. Brake pipe connection
2. Brake fluid level sensor connector
3. Bracket <L.H. drive vehicles>
4. Master cylinder
"
C
A
5. Seal
"
B
A D
Push rod protrusion amount check and
adjustment
"
A
A
6. Vacuum hose
(With built-in check valve)
7. Snap pin
8. Pin assembly
9. Vacuum sensor connector
10. Vacuum sensor
11. Grommet
12. Brake booster
13. Sealer
Fitting removal
14. Fitting
INSTALLATION SERVICE POINTS
"
A
A
VACUUM HOSE CONNECTION
Insert the vacuum hose to the fitting with its paint mark facing
forward <L.H. drive vehicles>/upward <R.H. drive vehicles>
until the hose end reaches the edge of the hexagonal part
of the fitting, and then secure the hose by using the hose
clip.
"
B
A
PUSH ROD PROTRUSION AMOUNT CHECK AND
ADJUSTMENT
1.
Measure dimension (A).
Standard value (A) :
<L.H. drive vehicles with ABS> 22.7 – 22.9 mm
<L.H. drive vehicles without ABS and R.H. drive
vehicles> 23.93 – 24.18 mm
NOTE
When a negative pressure of 66.7 kPa is applied to the
brake booster, the push rod should protrude 22.2 – 22.4
mm <L.H. drive vehicles with ABS>/23.48 – 23.73 mm
<L.H. drive vehicles without ABS and R.H. drive vehicles>.
Block gauge
Measuring distance A
A
BASIC BRAKE SYSTEM –
Master Cylinder and Brake Booster
35A-18
2.
If the protrusion amount is not within the standard value
range, adjust the push rod length by turning the push
rod. Use the special tool to turn the push rod while holding
the rod spline with angle-nose pliers.
"
C
A
SEAL INSTALLATION
1.
Apply silicone grease to the seal.
2.
Install the seal to the master cylinder as shown.
INSPECTION
VACUUM SENSOR CHECK
Refer to GROUP 13A – Troubleshooting.
NOTE
The vacuum sensor is monitored by the engine-ECU. Diagnosis
code is output when the vacuum sensor has a malfunction.
Angle-nose pliers
MB991568
Seal
Master cylinder
<L.H. drive vehicles with ABS>
<L.H. drive vehicles without ABS and R.H.
drive vehicles>
Master cylinder
Seal
BASIC BRAKE SYSTEM –
Master Cylinder and Brake Booster
35A-19
MASTER CYLINDER <L.H. drive vehicles without ABS and R.H. drive vehicles>
DISASSEMBLY AND REASSEMBLY
1
2
3
8
6
8
Brake fluid: DOT3 or DOT4
7
7
5
Master cylinder kit
4
5
9
6
12
11
10
9
10
11
12
11
12
10
Disassembly steps
1. Reservoir cap
2. Pin
3. Reservoir tank
4. Brake fluid level sensor
5. Reservoir seal
A
A
"
6. Stopper ring
7. Piston guide
8. Cylinder cup
9. Plate
10. Primary piston assembly
11. Secondary piston assembly
12. Master cylinder body
DISASSEMBLY SERVICE POINT
A
A
"
STOPPER RING REMOVAL
Push the primary piston assembly and remove the stopper
ring.
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