Nissan Murano Z51. Manual — part 289
BRAKE MASTER CYLINDER
BR-27
< REMOVAL AND INSTALLATION >
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BRAKE MASTER CYLINDER
Exploded View
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Removal and Installation
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REMOVAL
CAUTION:
Never spill or splash brake fluid on painted surfaces. Brake fluid may seriously damage paint. Wipe it
off immediately and wash with water if it gets on a painted surface.
1.
Drain brake fluid. Refer to
2.
Separate the brake fluid level switch harness connector.
3.
Remove sub tank and hose.
4.
Remove cowl top cover. Refer to
5.
Remove front wiper drive assembly. Refer to
.
6.
Remove extension cowl top. Refer to
7.
Remove air duct assembly and air cleaner case. Refer to
.
8.
Separate the brake tubes from the master cylinder assembly with a flare nut wrench.
CAUTION:
Never scratch the flare nut and the brake tube.
9.
Remove the master cylinder assembly.
1.
Sub tank cap
2.
Sub tank
3.
Sub tank bracket
4.
Clamp
5.
Hose
6.
Clamp
7.
Reservoir tank
8.
Grommet
9.
Cylinder body
10.
Pin
11.
O-ring
: Apply PBC (Poly Butyl Cuprysil) grease or silicone-based grease.
: Apply brake fluid.
Refer to
for symbols not described on the above.
JPFIA0426GB
BR-28
< REMOVAL AND INSTALLATION >
BRAKE MASTER CYLINDER
CAUTION:
• Depress the brake pedal several times to release the vacuum pressure from the brake booster.
Then remove the master cylinder assembly.
• Never depress the brake pedal after the master cylinder assembly is removed.
• The piston of the master cylinder assembly is exposed. Never damage it when removing the
master cylinder.
• The piston may drop off when pulled out strongly. Never hold the piston. Hold the cylinder body
when handling the master cylinder assembly.
INSTALLATION
CAUTION:
Never spill or splash brake fluid on painted surfaces. Brake fluid may seriously damage paint. Wipe it
off immediately and wash with water if it gets on a painted surface.
Note the following, and install the reverse order of removal.
• Never depress the brake pedal after the master cylinder assembly is removed.
• Apply PBC (Poly Butyl Cuprysil) silicone-based grease to the
brake booster [see (A) in the figure] when installing the master cyl-
inder assembly to the brake booster.
• The piston of the master cylinder assembly is exposed. Never
damage it when handling the master cylinder and check that no dirt
and dust are present on the piston before installation. Clean it with
new brake fluid if necessary.
• The piston may drop off when pulled strongly. Never hold the pis-
ton. Hold the cylinder body when handling the master cylinder
assembly.
• Temporarily tighten the brake tube flare nut to the master cylinder
assembly by hand. Then tighten it to the specified torque with a
crowfoot and torque wrench. Refer to
BR-22, "FRONT : Exploded View"
CAUTION:
Never scratch the flare nut and the brake tube.
• After installation, perform the air bleeding. Refer to
BR-13, "Bleeding Brake System"
.
CAUTION:
Never reuse drained brake fluid.
Disassembly and Assembly
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DISASSEMBLY
CAUTION:
• Never disassemble the cylinder body.
• Remove the reservoir tank if necessary.
1.
Fix the master cylinder assembly to a vise.
CAUTION:
Always set copper plates or cloth between vise when fixing the cylinder body to a vise. Never
overtighten the vise.
2.
Remove the reservoir tank mounting pin with a pin punch.
3.
Remove the reservoir tank and grommet from the cylinder body.
CAUTION:
Never drop the removed parts. The parts must not be
reused if they are dropped.
ASSEMBLY
1.
Apply new brake fluid to the grommet and install it to the cylinder body.
CAUTION:
• Never use mineral oil such as gasoline or light oil.
• Never reuse the grommets.
JPFIA0013ZZ
JPFIA0303ZZ
BRAKE MASTER CYLINDER
BR-29
< REMOVAL AND INSTALLATION >
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2.
Install the reservoir tank to the cylinder body.
CAUTION:
• Never drop the parts when installing. The parts must not be reused if they are dropped.
• Never reuse reservoir tank.
3.
Fix the cylinder body to a vise.
CAUTION:
• Place the reservoir tank with the chamfered pin hole (
)
facing up.
• Always set copper plates or cloth between vise when fix-
ing the cylinder body to a vise. Never overtighten the vise.
4.
Tilt the reservoir tank so that a mounting pin can be inserted.
Insert a mounting pin. Return the reservoir tank to the horizontal
position. Insert another mounting pin into the pin hole on the
opposite side in the same manner after the mounting pin passes
through the cylinder body pin hole.
CAUTION:
Never reuse the mounting pin.
Inspection
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INSPECTION AFTER INSTALLATION
Fluid Leak
Check for brake fluid leakage from the cylinder body-to-brake booster mounting face, reservoir tank mounting
face, brake tube connections and hose connections.
JPFIA0304ZZ
JPFIA0303ZZ
BR-30
< REMOVAL AND INSTALLATION >
BRAKE BOOSTER
BRAKE BOOSTER
Exploded View
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Removal and installation
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REMOVAL
1.
Remove brake master cylinder assembly. Refer to
.
CAUTION:
• Depress the brake pedal several times to release the vacuum pressure from the brake booster.
Then remove the master cylinder assembly.
• Never depress the brake pedal after the master cylinder assembly is removed.
• The piston of the master cylinder assembly is exposed. Never damage it when removing the
master cylinder.
• The piston may drop off when pulled out strongly. Never hold the piston. Hold the cylinder body
when handling the master cylinder assembly.
2.
Remove vacuum hose from brake booster. Refer to
.
3.
Remove snap pin (1) and clevis pin (2) from inside vehicle.
4.
Remove nuts on brake booster and brake pedal assembly.
CAUTION:
Hold the brake booster so as to avoid dropping out.
5.
Remove brake booster from dash panel in engine room side.
CAUTION:
Never deform or bend the brake tubes.
INSTALLATION
Note the following, and installation is the reverse order of removal.
• Be careful not to damage brake booster stud bolt threads. If brake booster is tilted during installation, the
dash panel may damage the threads.
• Never deform or bend the brake tubes when installing the brake booster.
• Always use a new gasket between the brake booster.
1.
Master cylinder assembly
2.
Brake booster
3.
Lock nut
4.
Clevis
5.
Gasket
Refer to
for symbols in the figure.
JPFIA0425GB
JPFIA0019ZZ
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