Nissan Murano. Instruction — part 210
BR-50
< REMOVAL AND INSTALLATION >
REAR DISC BRAKE
Since dust covering the rear brake has an affect on human body, the dust must be removed with a
dust collector. Never splatter the dust with an air blow gun.
CAUTION:
Never depress the brake pedal. Brake fluid may splash while removing the brake hose.
1.
Remove tires with power tool.
2.
Fix the disc rotor using wheel nuts.
3.
Drain brake fluid. Refer to
.
CAUTION:
Never spill or splash brake fluid on the disc rotor.
4.
Remove union bolt and copper washers then disconnect brake hose from caliper assembly.
5.
Remove torque member mounting bolts, and remove brake caliper assembly.
CAUTION:
Never drop brake pads and caliper assembly.
6.
Remove disc rotor.
CAUTION:
• Put matching marks on the wheel hub and bearing assembly and the disc rotor before removing
the disc rotor.
• Never drop disc rotor.
INSTALLATION
WARNING:
Since dust covering the rear brake has an affect on human body, the dust must be removed with a
dust collector. Never splatter the dust with an air blow gun.
CAUTION:
Never depress the brake pedal. Brake fluid may splash while removing the brake hose.
1.
Install disc rotor.
CAUTION:
Align the matching marks put during removal when reusing the disc rotor.
2.
Install the brake caliper assembly to the vehicle and tighten the torque member mounting bolts to the
specified torque.
CAUTION:
Never spill or splash any grease and moisture on the brake caliper assembly mounting face,
threads, mounting bolts, and washers. Wipe out any grease and moisture.
3.
Install brake hose and copper washers to brake caliper assembly, and tighten union bolts to the specified
torque. Refer to
.
CAUTION:
Never reuse copper washer.
4.
Refill with new brake fluid and perform the air bleeding. Refer to
BR-13, "Bleeding Brake System"
.
CAUTION:
• Never reuse drained brake fluid.
• Never spill or splash brake fluid on the disc rotor.
5.
Check that no drag feel is present for the rear disc brake. Refer to
BR-52, "BRAKE CALIPER ASSEMBLY
BRAKE CALIPER ASSEMBLY : Disassembly and Assembly
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DISASSEMBLY
NOTE:
Never remove the torque member and pad retainers when disassembling and assembling the cylinder body.
1.
Remove the sliding pin bolts and remove the cylinder body from the torque member.
2.
Remove brake pads, shims and shim cover. Refer to
BR-47, "BRAKE PAD : Exploded View"
3.
Remove sliding pin boots from torque member.
4.
Remove bushing from sliding pin bolt.
REAR DISC BRAKE
BR-51
< REMOVAL AND INSTALLATION >
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5.
Place a wooden block as shown in the figure, and blow air from
union bolt mounting hole to remove piston and piston boot.
CAUTION:
Never get fingers caught in the piston.
6.
Remove piston seal from cylinder body using suitable tool.
CAUTION:
Be careful not to damage a cylinder inner wall.
7.
Remove bleeder valve and cap.
ASSEMBLY
1.
Install bleeder valve and cap.
2.
Apply polyglycol ether based lubricant to piston seal (1), and
install to cylinder body.
CAUTION:
Never reuse piston seal.
3.
Apply rubber grease to piston boot (1). Cover the piston (2) end
with the piston boot, and then install cylinder side lip on the pis-
ton boot securely into the groove on cylinder body.
CAUTION:
Never reuse piston boot.
BRD0041D
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BR-52
< REMOVAL AND INSTALLATION >
REAR DISC BRAKE
4.
Apply brake fluid to piston (1). Push piston into cylinder body by
hand and push piston boot (2) 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.
5.
Apply rubber grease to bushing, install bushing to sliding pin
bolt.
6.
Apply rubber grease to the sliding pin bolts and the sliding pin
boots, install sliding pin boot to torque member.
7.
Install the cylinder body to the torque member and tighten the
sliding pin bolts to the specified torque.
BRAKE CALIPER ASSEMBLY : Inspection
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INSPECTION AFTER DISASSEMBLY
Cylinder Body
Check the inner wall of the cylinder for rust, wear, cracks or damage. Replace the cylinder if any abnormal
condition is detected.
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. Replace the member if any abnormal condition is
detected.
Piston
Check the piston for rust, wear, cracks or damage. Replace the piston if any abnormal condition is detected.
CAUTION:
A piston sliding surface is plated. Never polish with sandpaper.
Sliding Pin Bolt and Sliding Pin Boot
Check the sliding pin bolts and sliding pin boots for rust, wear, cracks or damage. Replace the parts if any
abnormal condition is detected.
INSPECTION AFTER INSTALLATION
1.
Check a drag of rear disc brake. If any drag is found, follow the procedure described below.
2.
Remove brake pads.
3.
Press the piston.
CAUTION:
• Never damage the piston boot.
• When replacing a pad with new one, check a brake fluid level in the reservoir tank because brake
fluid returns to master cylinder reservoir tank when pressing piston in.
NOTE:
Use a disc brake piston tool to easily press piston.
4.
Install brake pads.
5.
Depress the brake pedal several times.
6.
Check a drag of rear disc brake again. If any drag is found, disassemble the cylinder body. Refer to
50, "BRAKE CALIPER ASSEMBLY : Disassembly and Assembly"
.
7.
Burnish contact surfaces after refinishing or replacing disc rotors, or if a soft pedal occurs at very low mile-
age. Refer to
BR-18, "DISC ROTOR : Inspection and Adjustment"
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SERVICE DATA AND SPECIFICATIONS (SDS)
BR-53
< SERVICE DATA AND SPECIFICATIONS (SDS)
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SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
General Specifications
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FRONT CALIPER 1 PISTON TYPE AND REAR CALIPER 1 PISTON TYPE
Unit: mm (in)
FRONT CALIPER 2 PISTON TYPE AND REAR CALIPER 1 PISTON TYPE
Unit: mm (in)
Brake Pedal
INFOID:0000000009722356
Unit: mm (in)
Front brake
Cylinder bore diameter
63.6 (2.504)
Pad length
×
width
×
thickness
111.0
×
63.5
×
9.5 (4.37
×
2.500
×
0.374)
Rotor outer diameter
×
thickness
φ
320
×
28.0 (12.60
×
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
φ
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
MA-15, "FOR NORTH AMERICA : Fluids and Lubri-
(for North America),
(for Mexico).
Front brake
Cylinder bore diameter
45.0 (1.772)
×
2
Pad length
×
width
×
thickness
130.0
×
50.0
×
11.0 (5.12
×
1.969
×
0.433)
Rotor outer diameter
×
thickness
φ
320
×
28.0 (12.60
×
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
φ
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
MA-15, "FOR NORTH AMERICA : Fluids and Lubri-
(for North America),
(for Mexico).
Item
Standard
Brake pedal height
197.1 – 207.1 (7.76 – 8.15)
Clearance between stopper rubber and stop lamp switch and ASCD brake switch threaded end
0.20 – 1.96 (0.0079 – 0.0772)
Brake pedal play
3.0 – 11.0 (0.118 – 0.433)
Depressed brake pedal height
[Depressing 490 N (50 kg, 110 lb) while turning the engine ON]
128 (5.04) or more
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