Content .. 224 225 226 227 ..

Nissan Quest E52. Manual - part 226

BR-48

< REMOVAL AND INSTALLATION >

REAR DISC BRAKE

Install tires with power tool. Refer to

WT-46, "Removal and Installation"

Perform inspection after installation. Refer to

BR-50, "BRAKE CALIPER ASSEMBLY : Inspection"

BRAKE CALIPER ASSEMBLY : Disassembly and Assembly

INFOID:0000000009651846

DISASSEMBLY

CAUTION:

Never drop the parts.
NOTE:
Never remove the torque member, brake pad and pad retainers when disassembling and assembling the cyl-
inder body.
1.

Remove the sliding pin bolt, and remove the cylinder body from the torque member. Refer to

BR-43,

"BRAKE PAD : Removal and Installation"

CAUTION:

Fix the brake pad at suitable tape so that the brake pad will not drop.

Remove sliding pin boots from torque member.

Remove bushing (1) from sliding pin bolt (2).

Place a wooden block as shown in the figure, and blow air from
union bolt mounting hole to remove pistons and piston boots.

CAUTION:

Never get fingers caught in the pistons.

Remove piston seal from cylinder body using seal pick tool.

CAUTION:

Be careful not to damage a cylinder inner wall.

Remove bleeder valve and cap.

Perform inspection after disassembly. Refer to

BR-50, "BRAKE

CALIPER ASSEMBLY : Inspection"

ASSEMBLY

CAUTION:

Never drop the parts.

Install bleeder valve and cap.

JSFIA0496ZZ

MAA0272D

JPFIA0038ZZ

REAR DISC BRAKE

BR-49

< REMOVAL AND INSTALLATION >

Apply polyglycol ether based lubricant to piston seals (1), and
install them to cylinder body.

CAUTION:

Never reuse piston seals.

Apply rubber grease to piston boots (1). Cover the piston (2) end
with piston boot, and then install cylinder side lip on piston boot
securely into a groove on cylinder body.

CAUTION:

Never reuse piston boots.

Apply new brake fluid to pistons (1). Push piston into cylinder
body by hand and push piston boot (2) piston-side lip into the
piston groove.

CAUTION:

Press the pistons evenly and vary the pressing point to pre-
vent cylinder inner wall from being rubbed.

Apply rubber grease to mating faces (A) between sliding pin bolt
(1) and bushing (2), and install bushing to sliding pin.

JPFIA0039ZZ

JPFIA0040ZZ

JPFIA0034ZZ

JSFIA0497ZZ

BR-50

< REMOVAL AND INSTALLATION >

REAR DISC BRAKE

Apply rubber grease to mating faces (A) between sliding pin bolt
(1) and sliding pin boot (2), and install sliding pin and sliding pin
boot to sliding torque member.

Apply MOLYKOTE

AS880N or silicone-based grease to the

pawls part (A) of cylinder body.
Molykote is a registered trademark of Dow Corning Corporation.

Install the cylinder body to tighten sliding pin bolts to the speci-
fied torque. Refer to

BR-43, "BRAKE PAD : Exploded View"

BRAKE CALIPER ASSEMBLY : Inspection

INFOID:0000000009651847

INSPECTION AFTER DISASSEMBLY

Check the following items and replace if necessary.

Cylinder Body

Check the inner wall of the cylinder for rust, wear, cracks or damage.

CAUTION:

Always clean with new brake fluid. Never clean with mineral oil such as gasoline and light oil.

Torque Member

Check the torque member for rust, wear, cracks or damage.

Pistons

Check the surface of the piston for rust, wear, cracks or damage.

CAUTION:

A piston sliding surface is plated. Never polish with sandpaper.

Sliding Pin Bolt, Sliding Pin Boot and Bushing

Check the sliding pin bolts, sliding boots and bushing for rust, wear, cracks or damage.

INSPECTION AFTER INSTALLATION

• Check a drag of rear disc brake. If any drag is found, follow the procedure described below.
1.

Remove brake pads. Refer to

BR-43, "BRAKE PAD : Removal and Installation"

Press the pistons. Refer to

BR-43, "BRAKE PAD : Removal and Installation"

Install brake pads. Refer to

BR-43, "BRAKE PAD : Removal and Installation"

Securely depress the brake pedal several times.

Check a drag of rear disc brake again. If any drag is found, disassemble the cylinder body and replace if
necessary. Refer to

BR-48, "BRAKE CALIPER ASSEMBLY : Disassembly and Assembly"

• Burnish contact surface between disc rotor and brake pads after refinishing or replacing disc rotor or brake

pad, or if a soft pedal occurs at very low mileage. Refer to

BR-16, "DISC ROTOR : Inspection and Adjust-

ment"

JSFIA0498ZZ

JSFIA0591ZZ

SERVICE DATA AND SPECIFICATIONS (SDS)

BR-51

< SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

General Specifications

INFOID:0000000009651848

Unit: mm (in)

Brake Pedal

INFOID:0000000009651849

Unit: mm (in)

Brake Booster

INFOID:0000000009651850

Unit: mm (in)

Front Disc Brake

INFOID:0000000009651851

Unit: mm (in)

Rear Disc Brake

INFOID:0000000009651852

Unit: mm (in)

Front brake

Cylinder bore diameter

47.62 (1.8748)

Pad length

width

thickness

132.0

44.5

10.0 (5.20

1.752

0.394)

Rotor outer diameter

thickness

290

28.0 (11.42

1.102)

Rear brake

Cylinder bore diameter

42.86 (1.6874)

Pad length

width

thickness

83.0

33.0

8.5 (3.268

1.299

0.335)

Rotor outer diameter

thickness

308

16.0 (12.13

0.630)

Master cylinder

Cylinder bore diameter

25.4 (1.0)

Control valve

Valve type

Electric brake force distribution

Brake booster

Diaphragm diameter

Primary: 228.5 (9.00)

Secondary: 203 (7.99)

Recommended brake fluid

Refer to

MA-10, "Fluids and Lubricants"

Item

Standard

Brake pedal height

195.6 – 205.6 (7.70 – 8.09)

Depressed brake pedal height
[Depressing 490 N (50 kg, 110 lb) while turning the engine ON]

105.0 (4.13) or more

Clearance between stop lamp switch and brake switch threaded end and the stopper rubber

0.2 – 1.96 (0.008 – 0.0772)

Brake pedal play

3 – 11 (0.12 – 0.43)

Item

Standard

Input rod length

127.0 – 128.0 (5.00 – 5.04)

Item

Limit

Brake pad

Wear thickness

2.0 (0.079)

Disc rotor

Wear thickness

26.0 (1.024)

Runout (with it attached to the vehicle)

0.040 (0.0016)

Item

Limit

Brake pad

Wear thickness

2.0 (0.079)

Disc rotor

Wear thickness

14.0 (0.551)

Runout (with it attached to the vehicle)

0.050 (0.0020)

Content .. 224 225 226 227 ..