Nissan Altima L32. Manual - part 147

BR-26

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VACUUM LINES

VACUUM LINES

Exploded View

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Removal and Installation

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REMOVAL

1. Disconnect the vacuum hose from the brake booster.
2. Disconnect the vacuum hose from the engine intake manifold.
3. Remove the vacuum hose.

INSTALLATION

Installation is in the reverse order of removal.

• Inspect the vacuum hose and one-way check valve before installation. Refer to 

BR-27, "Inspection After

Removal"

.

CAUTION:

• Because the vacuum hose contains a one-way check valve, the hose must be installed in the correct

position. Refer to the stamp on the hose to confirm the correct direction for installation. The brake

booster will not operate normally if the hose is installed in the wrong direction. 

• Do not use lubricating oil during assembly.

1.

Clamp

2.

Check valve direction stamp

3.

Vacuum hose

4.

Vacuum piping

A. To brake booster

⇐ Front

WFIA0421E

VACUUM LINES

BR-27

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• Insert the vacuum hose at least 24 mm (0.94 in) onto the brake

booster fitting as shown.

Inspection After Removal

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VISUAL

Check for correct assembly, damage and deterioration.

CHECK VALVE AIRTIGHTNESS

• Use a hand vacuum pump to check the one-way valve from each

end of the hose.

• Replace the vacuum hose assembly if the vacuum hose and check valve are malfunctioning.

SBR225B

SFIA0210E

When connected to the booster side (1) : Vacuum should decrease within 1.3 kPa (10 mm-

Hg, 0.39 inHg) for 15 seconds under a vacuum of 

−

66.7 kPa (

−500 mmHg, −19.69 inHg).

When connected to the engine side (2):               Vacuum  should  not  exist.

BR-28

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FRONT DISC BRAKE

FRONT DISC BRAKE

BRAKE PAD
BRAKE PAD : Exploded View

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BRAKE PAD : Removal and Installation

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WARNING:

Clean dust on caliper and brake pad with a vacuum dust collector to minimize the hazard of air borne

particles or other materials.

CAUTION:

• While removing caliper, do not depress brake pedal because piston will pop out. 

• It is not necessary to remove bolts on torque member and brake hose except for disassembly or

replacement of caliper assembly. In this case, hang caliper with a wire so as not to stretch brake

hose.

• Do not damage piston boot.

• If any shim is subject to serious corrosion, replace it with a new one.

• Always replace shim and shim cover as a set when replacing brake pads.

• Keep rotor free from brake fluid.

• Burnish the brake pads and disc rotor mutually contacting surfaces, after refinishing or replacing

rotors, after replacing pads, or if a soft pedal occurs at very low mileage. Refer to 

BR-30, "BRAKE

PAD : Brake Burnishing Procedure"

.

REMOVAL

1. Remove the front wheel and tires. Refer to 

WT-66, "Adjustment"

.

1.

Inner multilayered shim

2.

Pad wear sensors

3.

Inner pad

4.

Outer pad

5.

Pad retainers

6.

Outer shim

7.

Outer shim cover

A.

Molykote M-77 grease

B.

Molykote 7439 grease

AWFIA0497ZZ

FRONT DISC BRAKE

BR-29

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2. Remove lower sliding pin bolt.

3. Hang caliper with a suitable wire, and remove pads, pad retain-

ers, shims, and shim cover from torque member.

CAUTION:

When removing the pad retainer from the torque member,

lift it in the direction indicated by the arrow as shown so

that it does not deform.

INSTALLATION

1. Apply Molykote M-77 grease or equivalent between the outer shim cover and shim; and the inner multilay-

ered shim and inner pad. Install outer shim, outer shim cover to outer pad, and inner multilayered shim to

inner pad.

2. Apply Molykote 7439 grease or equivalent between pad retain-

ers and pad ends. Install pad retainers and pads on torque

member.

CAUTION:

• Securely assemble pad retainers so that they are not

being lifted up from torque member.

• Both inner and outer pads have a pad return system on

the pad retainer. Install pad return lever securely to pad

wear sensor.

3. Install caliper over assembled pads on to the torque member.

CAUTION:

When replacing a pad with new one, check brake fluid level in the reservoir tank because brake

fluid returns to master cylinder reservoir tank when pressing in the piston.

NOTE:

Use a disc brake piston tool (commercial service tool) to easily press in the piston. 

SBR976B

SBR932C

SBR556E

SBR557E