Nissan Cube. Manual — part 83
BRAKE MASTER CYLINDER
BR-25
< 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.
• Depress the brake pedal several times to release the vacuum pressure from the brake booster. Then
remove the master cylinder assembly.
1.
Remove cowl top cover and extension cowl top. Refer to
2.
Remove air duct and air cleaner case. Refer to
3.
Drain brake fluid. Refer to
4.
Disconnect the brake fluid level switch harness connector.
5.
Remove the brake tube from between ABS actuator and electric unit (control unit) and master cylinder
assembly with a flare nut wrench.
CAUTION:
Never scratch the flare nut and the brake tube.
6.
Remove the master cylinder assembly.
CAUTION:
• Never deform or bend the brake tubes.
• 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:
1.
Reservoir cap
2.
Oil strainer
3.
Reservoir tank
4.
Cylinder body
5.
Pin
6.
O-ring
7.
Grommet
: Apply PBC (Poly Butyl Cuprysil) grease or silicone-based grease.
: Apply brake fluid.
Refer to
for symbols not described on the above.
JPFIA0544GB
BR-26
< REMOVAL AND INSTALLATION >
BRAKE MASTER CYLINDER
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 in the reverse order of removal.
• Never reuse the O-ring.
• Never depress the brake pedal after the master cylinder assembly is removed.
• Apply silicone grease to the brake booster [see (A) in the figure]
when installing the master cylinder 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.
• Never deform or bend the brake tubes.
• Temporarily tighten the brake tube flare nut to the master cylinder
assembly by hand. Then tighten it to the specified torque with a
flare nut crowfoot and torque wrench. Refer to
BR-20, "FRONT : Exploded View"
CAUTION:
Never scratch the flare nut and the brake tube.
• Never allow foreign matter (e.g. dust) and oils other than brake fluid to enter the reservoir tank.
• After installation, perform the air bleeding. Refer to
BR-11, "Bleeding Brake System"
CAUTION:
Never reuse drained brake fluid.
• Adjust each item of brake pedal after installing the brake pedal assembly to the vehicle. Refer to
.
Disassembly and Assembly
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DISASSEMBLY
CAUTION:
• Never disassemble the cylinder body.
• Remove the reservoir tank only when necessary.
• Never drop the removed parts. The parts must not be reused if they are dropped.
1.
Fix the master cylinder assembly to a vise.
CAUTION:
• Always set copper plates or cloth between vise grips when fixing the cylinder body to a vise.
• Never overtighten the vise.
2.
Remove the reservoir tank mounting pin with a pin punch [4 mm (0.157 in)].
3.
Remove master cylinder from vise.
4.
Remove the reservoir tank and grommet from the cylinder body.
ASSEMBLY
CAUTION:
• Never use mineral oils such as kerosene or gasoline and rubber grease during the cleaning and
assembly process.
• Never drop the when installing. The parts must not be reused if they are dropped.
• Never allow foreign matter (e.g. dust) and oils other than brake fluid to enter the reservoir tank.
1.
Apply new brake fluid to the grommet and install it to the cylinder body.
CAUTION:
Never reuse the grommets.
2.
Install the reservoir tank to the cylinder body.
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 grips when fixing the cylinder body to a vise.
• Never overtighten the vise.
JPFIA0013ZZ
BRAKE MASTER CYLINDER
BR-27
< REMOVAL AND INSTALLATION >
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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 BEFORE REMOVAL
Check the brake fluid level switch. Refer to
BRC-69, "Component Inspection"
.
INSPECTION AFTER INSTALLATION
Check the following items and replace if necessary.
• Check the master cylinder for deformation, twist, contact with other parts or looseness of connection.
• Check for fluid leakage from connection. Refer to
CAUTION:
If the fluid leakage is present, retighten to the specified torque. Replace if necessary.
BR-28
< REMOVAL AND INSTALLATION >
BRAKE BOOSTER
BRAKE BOOSTER
Exploded View
INFOID:0000000009949226
Removal and installation
INFOID:0000000009949227
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.
Remove cowl top cover and cowl top extension. Refer to
.
2.
Remove air duct and air cleaner case. Refer to
3.
Drain brake fluid. Refer to
.
4.
Separate the brake fluid level switch harness connector.
5.
Remove the brake tube from between ABS actuator and electric unit (control unit) and master cylinder
assembly with a flare nut wrench.
CAUTION:
Never scratch the flare nut and the brake tube.
6.
Remove brake master cylinder assembly. Refer to
.
7.
Remove vacuum hose from brake booster. Refer to
.
8.
Remove snap pin (1) and clevis pin (2). Refer to
9.
Remove nuts on brake booster and brake pedal assembly. Refer
to
.
10. Remove brake booster from dash panel in engine room side.
CAUTION:
Never deform or bend the brake tubes.
NOTE:
If removing brake booster is difficult, remove clevis from brake
booster.
11. Remove the spacer from brake booster.
INSTALLATION
CAUTION:
1.
Master cylinder assembly
2.
Brake booster
3.
Lock nut
4.
Clevis
5.
Gasket
6.
Spacer
Refer to
for symbols in the figure.
JPFIA0545GB
JPFIA0019ZZ
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