Mitsubishi Grandis. Manual — part 894
FRONT DISC BRAKE ASSEMBLY
BASIC BRAKE SYSTEM
35A-18
DISASSEMBLY SERVICE POINT
<<A>> CIRCLIP REMOVAL
While pushing the primary piston assembly, remove
the circlip.
INSPECTION
M1351004300349
• Check the inner surface of master cylinder body
for rust or pitting.
• Check the primary and secondary pistons for
rust, scoring, wear or damage.
FRONT DISC BRAKE ASSEMBLY
REMOVAL AND INSTALLATION
M1351006000537
AC104263
AC311384 AB
100 ± 10 N·m
30 ± 4 N·m
3
1
2
N
6
7
5
15 ± 2 N·m
4
Removal steps
•
Brake fluid draining
1. Brake hose connection
2. Gasket
3. Front brake assembly
<<A>>
4. Front brake disc
5. Clip
6. Brake pipe and brake hose
connection
7. Brake hose
Removal steps (Continued)
FRONT DISC BRAKE ASSEMBLY
BASIC BRAKE SYSTEM
35A-19
REMOVAL SERVICE POINTS
<<A>> FRONT BRAKE DISC REMOVAL
If the front brake disc is seized, install a M8 x 1.25
bolts as shown, and remove the disc by tightening
the bolts evenly and gradually.
INSTALLATION SERVICE POINTS
>>A<< BRAKE HOSE INSTALLATION
1. Install the brake hose end on the bracket and
another end on the front brake assembly.
2. Twist the brake hose towards the lesser torsion
between the brake hose and bracket as shown
and secure it to the bracket.
>>B<< FRONT BRAKE ASSEMBLY
INSTALLATION
1. In order to measure the brake drag torque,
measure the hub torque with the pads removed by
the following procedure.
(1) Use a spring balance to measure the hub
torque in the forward direction.
(2) 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 disc brake piston expander
(MB990520).
4. Install the pad clips and the pads to the caliper
support and tighten the guide pin bolt to the
specified torque.
Tightening torque : 89
± 4 N⋅m
>>C<< BRAKE DRAG FORCE CHECK
1. 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)
(2) Stop the engine.
Installation steps
>>A<<
7. Brake hose
6. Brake pipe and brake hose
connection
5. Clip
4. Front brake disc
>>B<<
3. Front brake assembly
2. Gasket
1. Brake hose connection
•
Brake Fluid Supplying and Air
Bleeding (Refer to
>>C<<
•
Brake drag force check
AC205799AC
Bolts
(M8×1.25)
AC304119
A
AC
Brake hose
Wrong
Correct
Bracket
View A
AC311396
AC301354
MB990520
AB
FRONT DISC BRAKE ASSEMBLY
BASIC BRAKE SYSTEM
35A-20
(3) Turn the brake disc forward 10 times.
(4) Use a spring balance to measure the hub
torque with pads installed in the same
direction as earlier.
(5) Calculate the drag force of the disc brake
[difference between hub torque with pads
installed and hub torque with pads removed].
Standard value: 68 N or less
2. If the brake drag force exceeds the standard
value, disassemble and clean the piston. Check
for corrosion or worn piston seal, and check the
sliding condition of the lock pin and guide pin.
INSPECTION
M1351006100352
BRAKE DISC CHECK
Disc run-out (Refer to
DISASSEMBLY AND REASSEMBLY
M1351006200597
AC311397
AC313176
AB
N
8
7
10
11
9
1
2
3
4
5
6
12
13
89 ± 4 N·m
89 ± 4 N·m
7.4 ± 1.4 N·m
N
N
N
N
6
9
10
N
11
12
9
9
9
9
Clip set
6
Shim kit
7
8
Pad set
11
4
5
12
11
12
Repair kit
grease
Seal and boot kit
10
11
1
2
3
4
12
10
11
12
5
13
Brake caliper kit
FRONT DISC BRAKE ASSEMBLY
BASIC BRAKE SYSTEM
35A-21
LUBRICATION POINTS
DISASSEMBLY SERVICE POINTS
When disassembling the disc brakes, disassemble
both sides (left and right) as a set.
Disassembly steps
1. Lock pin
2. Guide pin
3. Caliper support (including pad, clip,
and shim)
4. Pin boot
5. Bushing
6. Shim
7. Pad and wear indicator assembly
8. Pad
9. Clip
<<A>>
10. Piston
<<B>>
11. Piston seal
<<A>>
12. Piston boot
13. Caliper body
Disassembly steps (Continued)
AC313177
Piston seal
Brake fluid: DOT 3 or DOT 4
Grease: Repair kit grease
The piston seal inside the caliper seal
kit is coated with a special grease.
Do not wipe this grease off.
Grease: Repair kit grease
Grease: Repair kit grease
CAUTION
AB
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