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 

P.35A-6

.)

>>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 wear (Refer to 

P.35A-8

).

Disc run-out (Refer to 

P.35A-8

).

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