Nissan Maxima. Manual - part 243

BR-40

< UNIT DISASSEMBLY AND ASSEMBLY >

FRONT DISC BRAKE

4. Place a wooden block in the cylinder body and blow air through

the union bolt hole to push out the piston and piston boot as

shown. Discard the piston boot.

WARNING:

Do not get fingers caught between the piston and cylinder

body.

CAUTION:

Do not reuse the piston boot.

5. Remove the piston seal from the cylinder body using a suitable

tool as shown. Discard the piston seal.

CAUTION:

• Be careful not to damage the inner cylinder wall.

• Do not reuse the piston seal.

INSPECTION AFTER DISASSEMBLY

Cylinder Body

Check the inner cylinder wall for corrosion, wear, and damage. If a defect is detected, replace the cylinder

body.

CAUTION:

Clean the cylinder body using new brake fluid. Do not use mineral oils such as gasoline or kerosene.

Torque Member

Check the torque member for wear, cracks, and damage. If a defect is detected, replace the torque member.

Piston

Check the piston surface for corrosion, wear, and damage. If a defect is detected, replace the piston.

CAUTION:

The piston sliding surface is plated. Do not polish the piston with sandpaper.

Sliding Pin, Sliding Pin Bolt, and Sliding Pin Boot

Check the sliding pin, sliding pin bolt, and sliding pin boot for wear, damage, and cracks. If a defect is

detected, replace the components as necessary.

ASSEMBLY

1. Apply rubber grease to the new piston seal, and install it in the

cylinder body.

CAUTION:

Do not reuse piston seal.

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FRONT DISC BRAKE

BR-41

< UNIT DISASSEMBLY AND ASSEMBLY >

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2. Apply rubber grease to new piston boot and apply brake fluid to

the piston. Cover the piston end with the piston boot, and then

install the cylinder side lip on the piston boot securely into a

groove on the cylinder body.

CAUTION:

Do not reuse piston boot.

3. Push the piston into the cylinder body by hand and push the pis-

ton boot piston-side lip into the piston groove.

CAUTION:

Press the piston evenly and vary the pressing point to pre-

vent cylinder inner wall from being rubbed.

4. Install the bleed valve and cap to the cylinder body.
5. Install the sliding pins, bushing and sliding pin boots on the torque member.
6. Install the cylinder body to the torque member, and then tighten the sliding pin bolts to the specified

torque.

SFIA2498E

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BR-42

< UNIT DISASSEMBLY AND ASSEMBLY >

REAR DISC BRAKE

REAR DISC BRAKE

Disassembly and Assembly

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NOTE:

Do not remove the torque member, pads, shims, shim covers, and pad retainers when disassembling and

assembling the cylinder body.

DISASSEMBLY

1. Remove the sliding pin bolts, and then remove the cylinder body from the torque member.

CAUTION:

Do not drop pads, shims, shim cover and pad retainers from torque member.

2. Remove the sliding pin boots from the torque member.
3. Remove the cap and the bleed valve from the cylinder body.

1.

Union bolt

2.

Brake hose

3.

Copper sealing washer

4.

Cap

5.

Bleed valve

6.

Lower sliding pin bolt

7.

Upper sliding pin bolt

8.

Bushing

9.

Cylinder body

10. Piston seal

11. Piston

12.

Piston boot

13. Retaining ring

14. Sliding pin boot

15.

Torque member bolt

16. Washer

17. Torque member

A.

Molykote AS-880N grease

B.

Brake grease

C.

Brake fluid

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REAR DISC BRAKE

BR-43

< UNIT DISASSEMBLY AND ASSEMBLY >

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4. Remove the retaining ring from the cylinder body using a suit-

able tool as shown. Discard the retaining ring.

CAUTION:

Do not reuse the retaining ring.

5. Place a wooden block in the cylinder body and blow air through

the union bolt hole to push out the piston and piston boot as

shown. Discard the piston boot.

WARNING:

Do not get fingers caught between the piston and cylinder

body.

CAUTION:

Do not reuse the piston boot.

6. Remove the piston seal from the cylinder body using a suitable

tool as shown. Discard the piston seal.

CAUTION:

• Be careful not to damage the inner cylinder wall.

• Do not reuse the piston seal.

INSPECTION AFTER DISASSEMBLY

Cylinder Body

Check the inner cylinder wall for corrosion, wear, and damage. If a defect is detected, replace the cylinder

body.

CAUTION:

Clean the cylinder body using new brake fluid. Do not use mineral oils such as gasoline or kerosene.

Torque Member

Check the torque member for wear, cracks, and damage. If a defect is detected, replace the torque member.

Piston

Check the piston surface for corrosion, wear, and damage. If a defect is detected, replace the piston.

CAUTION:

The piston sliding surface is plated. Do not polish the piston with sandpaper.

Sliding Pin Bolt and Sliding Pin Boot

Check the sliding pin bolt and sliding pin boot for wear, damage, and cracks. If a defect is detected, replace

the components as necessary.

ASSEMBLY

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