Mitsubishi Galant 9G. Manual — part 409
MASTER CYLINDER ASSEMBLY AND BRAKE BOOSTER
TSB Revision
BASIC BRAKE SYSTEM
35A-28
>>B<< PUSH ROD PROTRUSION AMOUNT
CHECK AND ADJUSTMENT
1. Use the vacuum pump to measure dimension "A" applying a
negative pressure of 66.7 kPa (19.7 inHg) to the brake
booster.
Standard value (A): 10.28
− 10.52 mm (0.405 − 0.414
inch)
NOTE: When a negative pressure of 66.7 kPa (19.7 inHg) is
not applied to the brake booster, the push rod protrusion
amount (A) should be 8.78 - 9.02 mm (0.346
−
0.355 inch).
2. If the protrusion amount is not within the standard value
range, adjust the push rod length by turning the push rod.
Use special tool MB991568 to turn the push rod while
holding the rod spline with angle-nose pliers.
AC210713AB
A
MEASURING DISTANCE A
BLOCK GAUGE
AC210714 AB
MB991568
ANGLE-NOSE PLIERS
ROD SPLINE
MASTER CYLINDER ASSEMBLY AND BRAKE BOOSTER
TSB Revision
BASIC BRAKE SYSTEM
35A-29
MASTER CYLINDER
M1351004200375
DISASSEMBLY AND ASSEMBLY
DISASSEMBLY SERVICE POINT
.
<<A>> BRAKE MASTER CYLINDER UNION
RETAINER DISASSEMBLY
Remove the brake master cylinder union retainer while
depressing the piston.
INSPECTION
M1351004300297
• Check the inner surface of master cylinder body for rust or
pitting.
• Check the primary and secondary pistons for rust, scoring,
wear or damage.
AC306545AB
1
3
5
6
4
N
N
N
6
5
MASTER CYLINDER KIT
BRAKE FLUID: DOT 3 OR DOT 4
3
4
1
5
4
2
N
N
DISASSEMBLY STEPS
1. BRAKE MASTER CYLINDER TO
FLUID RESERVOIR SEAL
2. BRAKE MASTER CYLINDER PIN
<VEHICLES WITH ABS>
<<A>>
3. BRAKE MASTER CYLINDER UNION
RETAINER
4. PRIMARY PISTON ASSEMBLY
5. SECONDARY PISTON ASSEMBLY
6. MASTER CYLINDER BODY
DISASSEMBLY STEPS
AC000903
DISC BRAKE ASSEMBLY
TSB Revision
BASIC BRAKE SYSTEM
35A-30
DISC BRAKE ASSEMBLY
REMOVAL AND INSTALLATION
M1351008000050
Required Special Tool:
• MB990520: Disc Brake Piston Expander
Pre-removal Operation
• Brake Fluid Draining
Post-installation Operation
• Brake Fluid Supplying and Air Bleeding (Refer to
AC305577AB
N
100 ± 10 N·m
74 ± 7 ft-lb
2
1
3
30 ± 4 N·m
22 ± 3 ft-lb
4
<FRONT>
AC305578AB
N
60 ± 5 N·m
45 ± 3 ft-lb
2
1
3
30 ± 4 N·m
22 ± 3 ft-lb
4
<REAR>
REMOVAL STEPS
• BRAKE FLUID DRAINING
1. BRAKE HOSE CONNECTION
2. GASKET
3. BRAKE CALIPER ASSEMBLY
4. BRAKE DISC
INSTALLATION STEPS
• BRAKE FLUID DRAINING
4. BRAKE DISC
3. BRAKE CALIPER ASSEMBLY
2. GASKET
1. BRAKE HOSE CONNECTION
• BRAKE FLUID SUPPLYING AND AIR
BLEEDING (Refer to
>>A<<
• BRAKE DRAG FORCE CHECK
INSTALLATION STEPS (Continued)
DISC BRAKE ASSEMBLY
TSB Revision
BASIC BRAKE SYSTEM
35A-31
INSTALLATION SERVICE POINT
.
>>A<< BRAKE DRAG FORCE CHECK
1. In order to measure the brake drag force, measure the hub
torque with the pads removed by the following procedure.
Use a spring scale to measure the hub torque in the forward
direction. Record hub torque with pads removed.
CAUTION
Do not let any oil, grease or other contamination get onto
the friction surfaces of the pads and brake discs.
2. After re-installing the caliper support to the knuckle, install
the pad clips and the pads to the caliper support.
3. Clean the piston and insert into cylinder with special tool
MB990520.
4. Be careful that the piston boot does not become caught,
when lowering the caliper assembly and installing the lock
pin bolt.
5. Check the brake drag force as follows.
(1) Start the engine and hold the brake pedal down for 5
seconds. [Pedal depression force: approximately 200 N
(45 pound)]
(2) Stop the engine.
(3) Turn the brake disc forward 10 times.
AC000906AG
SPRING SCALE
<FRONT>
AC305370
SPRING SCALE
AB
<REAR>
AC002027
MB990520
AB
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