Nissan X-Trail 32. Manual — part 110
BR-34
< REMOVAL AND INSTALLATION >
[LHD]
BRAKE MASTER CYLINDER
• The piston
of the master cylinder assembly is exposed. Never
damage it when handling the master cylinder.
• Check that no dirt and dust are present on the piston before instal-
lation. 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 torque wrench (A). Refer to
• Perform the air bleeding. Refer to
• Perform inspection after installation. Refer to
Disassembly and Assembly
INFOID:0000000010838520
DISASSEMBLY
CAUTION:
• Never disassemble the cylinder body.
• Remove the reservoir tank only when necessary.
• Never drop parts to remove. Replace new parts when dropping.
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 screw.
3.
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 allow foreign matter (e.g. dust) and oils other than brake fluid to enter the reservoir tank.
• Never drop when installing. The parts must not be reused if they are dropped.
1.
Apply new brake fluid to the grommet and install it to the cylinder body.
CAUTION:
Never reuse grommets.
2.
Install the reservoir tank to the cylinder body.
3.
Fix the cylinder body to a vise.
CAUTION:
JSFIA2382ZZ
JSFIA2238ZZ
BRAKE MASTER CYLINDER
BR-35
< REMOVAL AND INSTALLATION >
[LHD]
C
D
E
G
H
I
J
K
L
M
A
B
BR
N
O
P
• Place the reservoir tank with the chamfered screw hole
(
) facing up.
• Always set copper plates or cloth between vise grips
when fixing the cylinder body to a vise.
• Never overtighten the vise.
4.
Tilt the reservoir tank so that a mounting screw can be fixed.
Assemble with screw.
Inspection
INFOID:0000000010838521
INSPECTION BEFORE REMOVAL
Check the brake fluid level switch. Refer to
BRC-159, "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 parts if necessary.
JSFIA2383ZZ
BR-36
< REMOVAL AND INSTALLATION >
[LHD]
BRAKE BOOSTER
BRAKE BOOSTER
Exploded View
INFOID:0000000010838522
Removal and installation
INFOID:0000000010838523
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. For brake component parts, never
wash them with water.
1.
Perform inspection before removal. Refer to
BR-38, "Inspection and Adjustment"
.
2.
Drain brake fluid. Refer to
.
3.
Remove brake master cylinder assembly. Refer to
BR-32, "Removal and Installation"
.
4.
Remove vacuum hose from check valve.
• For MR20DD, refer to
BR-40, "MR20DD : Removal and Installation"
• For QR25DE, refer to
BR-41, "QR25DE : Removal and Installation"
.
• For R9M, refer to
BR-42, "R9M : Removal and Installation"
5.
Remove cowl top extension. Refer to
EXT-25, "Removal and Installation"
6.
Remove brake tube between master cylinder assembly and ABS actuator and electric unit (control unit).
Refer to
BR-24, "FRONT : Exploded View"
.
Brake booster
Check valve
Master cylinder assembly
Vacuum sensor
Gasket
: N·m (kg-m, ft-lb)
JSFIA2541GB
BRAKE BOOSTER
BR-37
< REMOVAL AND INSTALLATION >
[LHD]
C
D
E
G
H
I
J
K
L
M
A
B
BR
N
O
P
7.
Remove snap pin
and clevis pin
.
8.
Remove nuts on brake booster and brake pedal assembly.
CAUTION:
Hold the brake booster so as to avoid dropping out.
9.
Remove brake booster.
CAUTION:
Never deform or bend the brake tubes.
10. Remove check valve from brake booster.
11. Perform inspection after removal. Refer to
BR-38, "Inspection and Adjustment"
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. For brake component parts, never
wash them with water.
Note the following, and install in the reverse order of removal.
• Install check valve
and vacuum sensor
as shown in figure.
- Except R9M
- R9M
• Be careful not to damage brake booster stud bolt threads. If brake booster is tilted during installation, the
dash panel may damage threads.
• Never deform or bend the brake tubes when installing the brake booster.
• Always use new gasket between the brake booster and the dash panel.
• Replace clevis pin when found damage.
• Never allow foreign matter (e.g.dust) and oil other than brake fluid to enter reservoir tank.
• Perform the air bleeding. Refer to
.
JPFIA0019ZZ
A
:98
°±
5
°
B
:0
°±
5
°
: Vehicle upper side
JSFIA2543ZZ
A
: 70
°±
5
°
B
: 0
°±
5
°
: Vehicle upper side
JSFIA2542ZZ
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