Mitsubishi Grandis. Manual - part 895

 

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Mitsubishi Grandis. Manual - part 895

 

 

FRONT DISC BRAKE ASSEMBLY

BASIC BRAKE SYSTEM

35A-22

<<A>> PISTON BOOT/PISTON REMOVAL

CAUTION

• Blow air little by little to remove the pistons. 

The pistons will rush out if a force of air is 
applied suddenly.

• If one piston has been removed completely, it 

will become impossible to remove the second 
piston.

Remove the pistons and the piston boots by pumping 
in air from the brake hose connection. Be sure to use 
the handle of a plastic hammer and adjust the height 
of the two pistons so that the pistons protrude evenly.

<<B>> PISTON SEAL REMOVAL

CAUTION

Do not use a flat-tipped screwdriver or similar 
tool to remove the piston seal. These may 
damage the inner side of the cylinder.

1. Remove the piston seal with your finger tip.
2. Clean the piston surface and inner cylinder with 

alcohol or brake fluid DOT 3 or DOT 4.

INSPECTION

M1351006300442

• Check the cylinder for wear, damage or rust.

• Check the piston surface for wear, damage or 

rust.

• Check the caliper body or sleeve for wear.

• Check the pad for damage or adhesion of grease, 

check the backing metal for damage.

PAD WEAR CHECK

WARNING

Always replace both brake pads on each 
wheel as a set. Failure to do so will result 
in uneven braking, which may cause 
unreliable brake operation.

If there is significant difference in the 
thickness of the pads on the left and right 
sides, check the sliding condition of the 
piston and slide pins.

1. Measure thickness at the thinnest and most worn 

area of the pad.

Standard value: 10.0 mm
Minimum limit: 2.0 mm

2. Replace the pad assembly if pad thickness is less 

than the limit value.

AC202257

AC301355AB

AC313218AB

REAR DISC BRAKE ASSEMBLY

BASIC BRAKE SYSTEM

35A-23

REAR DISC BRAKE ASSEMBLY

REMOVAL AND INSTALLATION

M1351007000422

REMOVAL SERVICE POINTS
<<A>> BRAKE DISC REMOVAL

If the brake disc is seized, install M8 

× 1.25 bolts as 

shown, and remove the disc by tightening the bolts 
evenly and gradually.

INSTALLATION SERVICE POINTS
>>A<< REAR BRAKE ASSEMBLY 
INSTALLATION

AC302748 AD

60 ± 5 N·m

15 ± 2 N·m

1

4

2

5

15 ± 2 N·m

3

6

Removal steps

Brake fluid draining

1. Clip
2. Brake pipe and brake hose 

connection

3. Brake hose and rear brake assembly 

connection

4. Brake hose
5. Rear brake assembly

<<A>>

6. Rear brake disc

Installation steps

6. Rear brake disc

>>A<<

5. Rear brake assembly
4. Brake hose
3. Brake hose and rear brake assembly 

connection

2. Brake pipe and brake hose 

connection

1. Clip

Brake Fluid Supplying and Air 
Bleeding (Refer to 

P.35A-6

.)

>>B<<

Brake drag force check

AC302117AC

Bolts
(M8×1.25)

AC311463

REAR DISC BRAKE ASSEMBLY

BASIC BRAKE SYSTEM

35A-24

1. In order to measure the brake drag torque, 

measure the hub torque with the pads removed by 
the following procedure.
Use a spring balance 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 

backing plate, 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. Be careful that the piston boot does not become 

caught, when lowering the caliper assembly and 
installing the lock pin. Tighten the lock pin to the 
specified torque.

Tightening torque: 44 

± 5 Nm

>>B<< 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.
(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

M1351007100311

BRAKE DISC CHECK

Disc wear (Refer to 

P.35A-8

).

Disc run-out (Refer to 

P.35A-8

).

AC301357

MB990520

AB

AC311464

REAR DISC BRAKE ASSEMBLY

BASIC BRAKE SYSTEM

35A-25

DISASSEMBLY AND REASSEMBLY

M1351007200385

AC303226

7

6

9

AC

1

1

2

2

2

3

3

3

3

10

10

4

4

4

5

5

5

8

44 ± 5 N·m

13

12

14

11

13

14

11

10

10

7

7

6

8

10

10

15

15

13

12

14

11

9

7.9 ± 0.9 N·m

Brake caliper kit

Shim kit

Seal and boot kit

Pad set

Clip set

Repair kit grease

Disassembly steps

1. Pad and wear indicator assembly
2. Inner shim
3. Clip
4. Pad assembly
5. Outer shim
6. Lock pin
7. Bushing
8. Guide pin

9. Caliper support
10. Pin boot
11. Boot ring

<<A>>

12. Piston

<<B>>

13. Piston seal

<<A>>

14. Piston boot
15. Caliper body

Disassembly steps (Continued)

 

 

 

 

 

 

 

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