Nissan Almera Tino V10. Manual — part 249
SBR768E
Adjustment
NLBR0047
Before or after adjustment, pay attention to the following points.
I
For rear disc brake be sure that toggle lever returns to stop-
per when parking brake lever is released.
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There is no drag when parking brake lever is released.
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Vehicle is unladen.
1.
Adjust clearance between pad and rotor as follows:
a.
Release parking brake lever and loosen adjusting nut.
b.
Depress brake pedal fully at least 10 times with engine run-
ning.
SBR756E
2.
Pull control lever 10 times or more to make a lever stroke of
195 mm (7.68 in). At 5 - 6 notches, adjust the parking brake
cable by turning the adjusting nut.
SBR033A
3.
Pull control lever with specified amount of force. Check lever
stroke and ensure smooth operation.
Number of notches
5 - 6
4.
Bend warning lamp switch plate to ensure:
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Warning lamp comes on when lever is lifted “A” notches.
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Warning lamp goes out when lever is fully released.
Number of “A” notches: 1
PARKING BRAKE CONTROL
Adjustment
BR-44
Purpose
NLBR0082
The ABS consists of electronic and hydraulic components. It allows to control the braking force so that lock-
ing of the wheels can be avoided.
The ABS:
1) Ensures proper tracking performance through steering wheel operation.
2) Enables obstacles to be avoided through steering wheel operation.
3) Ensures vehicle stability by preventing flat spins.
ABS (Anti-Lock Brake System) Operation
NLBR0083
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When the vehicle speed is less than 10 km/h (6 MPH) this system does not work.
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The Anti-Lock Brake System (ABS) has self-test capabilities. The system turns on the ABS warning lamp
for 1 second after turning the ignition switch ON. The system performs another test the first time the vehicle
reaches 6 km/h (4 MPH). A mechanical noise may be heard as the ABS performs a self-test. This is a
normal part of the self-test feature. If a malfunction is found during this check, the ABS warning lamp will
come on.
I
During ABS operation, a mechanical noise may be heard. This is a normal condition.
ABS Hydraulic Circuit
NLBR0084
SBR757E
1.
Inlet solenoid valve
2.
Outlet solenoid valve
3.
Reservoir
4.
Pump
5.
Motor
6.
Bypass check valve
7.
Damper
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
ST
RS
BT
HA
SC
EL
IDX
DESCRIPTION
ABS
Purpose
BR-45
System Components
NLBR0086
NBR369
SBR124B
System Description
NLBR0087
SENSOR
NLBR0087S01
The sensor unit consists of a gear-shaped sensor rotor and a sen-
sor element. The element contains a bar magnet around which a
coil is wound. The sensor is installed on the back side of the brake
rotor. Sine-wave current is generated by the sensor as the wheel
rotates. The frequency and voltage increase(s) as the rotating
speed increases.
SBR759E
CONTROL UNIT
NLBR0087S02
The control unit computes the wheel rotating speed by the signal
current sent from the sensor. Then it supplies a DC current to the
actuator solenoid valve. It also controls ON-OFF operation of the
valve relay and motor relay. If any electrical malfunction should be
detected in the system, the control unit causes the warning lamp
to light up. In this condition, the ABS will be deactivated by the
control unit, and the vehicle’s brake system reverts to normal
operation.
YBR327
ABS ACTUATOR AND ELECTRIC UNIT
NLBR0087S03
The ABS actuator and electric unit contains:
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An electric motor and pump
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Two relays
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Eight solenoid valves, each inlet and outlet for
— LH front
— RH front
— LH rear
— RH rear
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ABS control unit
DESCRIPTION
ABS
System Components
BR-46
This components controls the hydraulic circuit and increases, holds
or decreases hydraulic pressure to all or individual wheels. The
ABS actuator and electric unit can not be disassemble and will be
service as an assembly.
ABS Actuator Operation
NLBR0087S0301
Inlet solenoid
valve
Outlet solenoid
valve
Normal brake operation
OFF (Open)
OFF (Closed)
Master cylinder brake fluid pressure is directly
transmitted to caliper via the inlet solenoid valve.
ABS operation
Pressure hold
ON (Closed)
OFF (Closed)
Hydraulic circuit is shut off to hold the caliper brake
fluid pressure.
Pressure
decrease
ON (Closed)
ON (Open)
Caliper brake fluid is sent to reservoir via the outlet
solenoid valve. Then it is pushed up to the master
cylinder by pump.
Pressure
increase
OFF (Open)
OFF (Closed)
Master cylinder brake fluid pressure is transmitted
to caliper.
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
ST
RS
BT
HA
SC
EL
IDX
DESCRIPTION
ABS
System Description (Cont’d)
BR-47
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